The class Insecta, in the phylum ARTHROPODA, whose members are characterized by division into three parts: head, thorax, and abdomen. They are the dominant group of animals on earth; several hundred thousand different kinds having been described. Three orders, HEMIPTERA; DIPTERA; and SIPHONAPTERA; are of medical interest in that they cause disease in humans and animals. (From Borror et al., An Introduction to the Study of Insects, 4th ed, p1)
Proteins found in any species of insect.
Viruses infecting insects, the largest family being BACULOVIRIDAE.
The functional hereditary units of INSECTS.
Insects of the suborder Heterocera of the order LEPIDOPTERA.
The reduction or regulation of the population of noxious, destructive, or dangerous insects through chemical, biological, or other means.
Hormones secreted by insects. They influence their growth and development. Also synthetic substances that act like insect hormones.
A genus of owlet moths of the family Noctuidae. These insects are used in molecular biology studies during all stages of their life cycle.
A large order of insects comprising the butterflies and moths.
The genetic complement of an insect (INSECTS) as represented in its DNA.
Substances causing insects to turn away from them or reject them as food.
A large order of insects characterized by having the mouth parts adapted to piercing or sucking. It is comprised of four suborders: HETEROPTERA, Auchenorrhyncha, Sternorrhyncha, and Coleorrhyncha.
Family of INSECT VIRUSES containing two subfamilies: Eubaculovirinae (occluded baculoviruses) and Nudibaculovirinae (nonoccluded baculoviruses). The Eubaculovirinae, which contain polyhedron-shaped inclusion bodies, have two genera: NUCLEOPOLYHEDROVIRUS and GRANULOVIRUS. Baculovirus vectors are used for expression of foreign genes in insects.
Wormlike or grublike stage, following the egg in the life cycle of insects, worms, and other metamorphosing animals.
Insects that transmit infective organisms from one host to another or from an inanimate reservoir to an animate host.
Bites and stings inflicted by insects.
INSECTS of the order Coleoptera, containing over 350,000 species in 150 families. They possess hard bodies and their mouthparts are adapted for chewing.
An order of the class Insecta. Wings, when present, number two and distinguish Diptera from other so-called flies, while the halteres, or reduced hindwings, separate Diptera from other insects with one pair of wings. The order includes the families Calliphoridae, Oestridae, Phoridae, SARCOPHAGIDAE, Scatophagidae, Sciaridae, SIMULIIDAE, Tabanidae, Therevidae, Trypetidae, CERATOPOGONIDAE; CHIRONOMIDAE; CULICIDAE; DROSOPHILIDAE; GLOSSINIDAE; MUSCIDAE; TEPHRITIDAE; and PSYCHODIDAE. The larval form of Diptera species are called maggots (see LARVA).
The blood/lymphlike nutrient fluid of some invertebrates.
Insects of the order Dictyoptera comprising several families including Blaberidae, BLATTELLIDAE, Blattidae (containing the American cockroach PERIPLANETA americana), Cryptocercidae, and Polyphagidae.
Plant-eating orthopterans having hindlegs adapted for jumping. There are two main families: Acrididae and Romaleidae. Some of the more common genera are: Melanoplus, the most common grasshopper; Conocephalus, the eastern meadow grasshopper; and Pterophylla, the true katydid.
Descriptions of specific amino acid, carbohydrate, or nucleotide sequences which have appeared in the published literature and/or are deposited in and maintained by databanks such as GENBANK, European Molecular Biology Laboratory (EMBL), National Biomedical Research Foundation (NBRF), or other sequence repositories.
A suborder of HEMIPTERA, called true bugs, characterized by the possession of two pairs of wings. It includes the medically important families CIMICIDAE and REDUVIIDAE. (From Dorland, 28th ed)
A genus of beetles which infests grain products. Its larva is called mealworm.
Insect members of the superfamily Apoidea, found almost everywhere, particularly on flowers. About 3500 species occur in North America. They differ from most WASPS in that their young are fed honey and pollen rather than animal food.
A genus of small beetles of the family Tenebrionidae; T. confusum is the "confused flour beetle".
The use of wings or wing-like appendages to remain aloft and move through the air.
Any of numerous winged hymenopterous insects of social as well as solitary habits and having formidable stings.
A genus in the family Blattidae containing several species, the most common being P. americana, the American cockroach.
An extensive order of highly specialized insects including bees, wasps, and ants.
Use of naturally-occuring or genetically-engineered organisms to reduce or eliminate populations of pests.
A family (Aphididae) of small insects, in the suborder Sternorrhyncha, that suck the juices of plants. Important genera include Schizaphis and Myzus. The latter is known to carry more than 100 virus diseases between plants.
A genus of silkworm MOTHS in the family Bombycidae of the order LEPIDOPTERA. The family contains a single species, Bombyx mori from the Greek for silkworm + mulberry tree (on which it feeds). A native of Asia, it is sometimes reared in this country. It has long been raised for its SILK and after centuries of domestication it probably does not exist in nature. It is used extensively in experimental GENETICS. (From Borror et al., An Introduction to the Study of Insects, 4th ed, p519)
The family Gryllidae consists of the common house cricket, Acheta domesticus, which is used in neurological and physiological studies. Other genera include Gryllotalpa (mole cricket); Gryllus (field cricket); and Oecanthus (tree cricket).
The order of amino acids as they occur in a polypeptide chain. This is referred to as the primary structure of proteins. It is of fundamental importance in determining PROTEIN CONFORMATION.
The relationships of groups of organisms as reflected by their genetic makeup.
Insects of the family Formicidae, very common and widespread, probably the most successful of all the insect groups. All ants are social insects, and most colonies contain three castes, queens, males, and workers. Their habits are often very elaborate and a great many studies have been made of ant behavior. Ants produce a number of secretions that function in offense, defense, and communication. (From Borror, et al., An Introduction to the Study of Insects, 4th ed, p676)
A genus of the subfamily TRIATOMINAE. Rhodnius prolixus is a vector for TRYPANOSOMA CRUZI.
Compounds, either natural or synthetic, which block development of the growing insect.
BEETLES in the family Curculionidae and the largest family in the order COLEOPTERA. They have a markedly convex shape and many are considered pests.
Pesticides designed to control insects that are harmful to man. The insects may be directly harmful, as those acting as disease vectors, or indirectly harmful, as destroyers of crops, food products, or textile fabrics.
An order of insects comprising two suborders: Caelifera and Ensifera. They consist of GRASSHOPPERS, locusts, and crickets (GRYLLIDAE).
An inactive stage between the larval and adult stages in the life cycle of insects.
The act of feeding on plants by animals.
A species of fruit fly much used in genetics because of the large size of its chromosomes.
The relationship between two different species of organisms that are interdependent; each gains benefits from the other or a relationship between different species where both of the organisms in question benefit from the presence of the other.
A genus of gram-negative bacteria existing symbiotically with nematodes of the family Heterorhabditidae (see RHABDITOIDEA). These nematodes infect a variety of soil-dwelling insects. Upon entering an insect host, the nematode releases Photorhabdus from its intestinal tract and the bacterium establishes a lethal septicemia in the insect.
Members of the phylum Arthropoda, composed of organisms having a hard, jointed exoskeleton and paired jointed legs. It includes the class INSECTS and the subclass ARACHNIDA, many species of which are important medically as parasites or as vectors of organisms capable of causing disease in man.
Periodic casting off FEATHERS; HAIR; or cuticle. Molting is a process of sloughing or desquamation, especially the shedding of an outer covering and the development of a new one. This phenomenon permits growth in ARTHROPODS, skin renewal in AMPHIBIANS and REPTILES, and the shedding of winter coats in BIRDS and MAMMALS.
A genus of gram-negative, facultatively anaerobic rod-shaped cells which are motile by peritrichous flagella. Late in the growth cycle, spheroplasts or coccoid bodies occur, resulting from disintegration of the cell wall. The natural habitat is the intestinal lumen of certain nematodes. (From Bergey's Manual of Determinative Bacteriology, 9th ed)
The sequence of PURINES and PYRIMIDINES in nucleic acids and polynucleotides. It is also called nucleotide sequence.
Flies of the species Musca domestica (family MUSCIDAE), which infest human habitations throughout the world and often act as carriers of pathogenic organisms.
A nutritional reservoir of fatty tissue found mainly in insects and amphibians.
Any blood or formed element especially in invertebrates.
The relationship between an invertebrate and another organism (the host), one of which lives at the expense of the other. Traditionally excluded from definition of parasites are pathogenic BACTERIA; FUNGI; VIRUSES; and PLANTS; though they may live parasitically.
Behavioral responses or sequences associated with eating including modes of feeding, rhythmic patterns of eating, and time intervals.
A genus of the family BACULOVIRIDAE, subfamily Eubaculovirinae, characterized by the formation of crystalline, polyhedral occlusion bodies in the host cell nucleus. The type species is Autographa californica nucleopolyhedrovirus.
Slender tubular or hairlike excretory structures found in insects. They emerge from the alimentary canal between the mesenteron (midgut) and the proctodeum (hindgut).
Profound physical changes during maturation of living organisms from the immature forms to the adult forms, such as from TADPOLES to frogs; caterpillars to BUTTERFLIES.
Proteins prepared by recombinant DNA technology.
A mitosporic fungal genus in the family Clavicipitaceae. It has teleomorphs in the family Nectriaceae. Metarhizium anisopliae is used in PESTICIDES.
A species of gram-positive bacteria which may be pathogenic for certain insects. It is used for the biological control of the Gypsy moth.
A mitosporic fungal genus. Teleomorphs are found in the family Clavicipitaceae and include Cordyceps bassiana. The species Beauveria bassiana is a common pathogen of ARTHROPODS and is used in PEST CONTROL.
A compound used as a topical insect repellent that may cause irritation to eyes and mucous membranes, but not to the skin.
The immature stage in the life cycle of those orders of insects characterized by gradual metamorphosis, in which the young resemble the imago in general form of body, including compound eyes and external wings; also the 8-legged stage of mites and ticks that follows the first moult.
The restriction of a characteristic behavior, anatomical structure or physical system, such as immune response; metabolic response, or gene or gene variant to the members of one species. It refers to that property which differentiates one species from another but it is also used for phylogenetic levels higher or lower than the species.
The process of laying or shedding fully developed eggs (OVA) from the female body. The term is usually used for certain INSECTS or FISHES with an organ called ovipositor where eggs are stored or deposited before expulsion from the body.
The process of cumulative change over successive generations through which organisms acquire their distinguishing morphological and physiological characteristics.
Paired sense organs connected to the anterior segments of ARTHROPODS that help them navigate through the environment.
A genus of small, two-winged flies containing approximately 900 described species. These organisms are the most extensively studied of all genera from the standpoint of genetics and cytology.
Steroids that bring about MOLTING or ecdysis in insects. Ecdysteroids include the endogenous insect hormones (ECDYSONE and ECDYSTERONE) and the insect-molting hormones found in plants, the phytoecdysteroids. Phytoecdysteroids are natural insecticides.
A genus of mosquitoes (CULICIDAE) frequently found in tropical and subtropical regions. YELLOW FEVER and DENGUE are two of the diseases that can be transmitted by species of this genus.
A steroid hormone that regulates the processes of MOLTING or ecdysis in insects. Ecdysterone is the 20-hydroxylated ECDYSONE.
The insertion of recombinant DNA molecules from prokaryotic and/or eukaryotic sources into a replicating vehicle, such as a plasmid or virus vector, and the introduction of the resultant hybrid molecules into recipient cells without altering the viability of those cells.
A species of migratory Old World locusts, in the family ACRIDIDAE, that are important pests in Africa and Asia.
The outer covering of the body composed of the SKIN and the skin appendages, which are the HAIR, the NAILS; and the SEBACEOUS GLANDS and the SWEAT GLANDS and their ducts.
Slender-bodies diurnal insects having large, broad wings often strikingly colored and patterned.
Proteins that originate from insect species belonging to the genus DROSOPHILA. The proteins from the most intensely studied species of Drosophila, DROSOPHILA MELANOGASTER, are the subject of much interest in the area of MORPHOGENESIS and development.
A genus of bacteria comprised of a heterogenous group of gram-negative small rods and coccoid forms associated with arthropods. (From Bergey's Manual of Systematic Bacteriology, vol 1, 1984)
The degree of similarity between sequences of amino acids. This information is useful for the analyzing genetic relatedness of proteins and species.
A large family of fruit flies in the order DIPTERA, comprising over 4,500 species in about 100 genera. They have patterned wings and brightly colored bodies and are found predominantly in the tropical latitudes.
Cell line derived from SF21 CELLS which are a cell line isolated from primary explants of SPODOPTERA FRUGIPERDA pupal tissue.
The process of cumulative change at the level of DNA; RNA; and PROTEINS, over successive generations.
Seasonal suspension of insect growth development. It can be either induced by environmental cues (e.g., PHOTOPERIOD) or as a facultative part of the life cycle in order to time development with seasonal changes.
Established cell cultures that have the potential to propagate indefinitely.
The development by insects of resistance to insecticides.
Instinctual behavior pattern in which food is obtained by killing and consuming other species.
The arrangement of two or more amino acid or base sequences from an organism or organisms in such a way as to align areas of the sequences sharing common properties. The degree of relatedness or homology between the sequences is predicted computationally or statistically based on weights assigned to the elements aligned between the sequences. This in turn can serve as a potential indicator of the genetic relatedness between the organisms.
A multistage process that includes cloning, physical mapping, subcloning, determination of the DNA SEQUENCE, and information analysis.
Juvenile hormone analog and insect growth regulator used to control insects by disrupting metamorphosis. Has been effective in controlling mosquito larvae.
Arthropods of the class ARACHNIDA, order Araneae. Except for mites and ticks, spiders constitute the largest order of arachnids, with approximately 37,000 species having been described. The majority of spiders are harmless, although some species can be regarded as moderately harmful since their bites can lead to quite severe local symptoms. (From Barnes, Invertebrate Zoology, 5th ed, p508; Smith, Insects and Other Arthropods of Medical Importance, 1973, pp424-430)
A family of the order DIPTERA that comprises the mosquitoes. The larval stages are aquatic, and the adults can be recognized by the characteristic WINGS, ANIMAL venation, the scales along the wing veins, and the long proboscis. Many species are of particular medical importance.
A discipline or occupation concerned with the study of INSECTS, including the biology and the control of insects.
Single-stranded complementary DNA synthesized from an RNA template by the action of RNA-dependent DNA polymerase. cDNA (i.e., complementary DNA, not circular DNA, not C-DNA) is used in a variety of molecular cloning experiments as well as serving as a specific hybridization probe.
An order of insects, restricted mostly to the tropics, containing at least eight families. A few species occur in temperate regions of North America.
A species of mosquito in the genus Anopheles and the principle vector of MALARIA in Africa.
Proteins, usually projecting from the cilia of olfactory receptor neurons, that specifically bind odorant molecules and trigger responses in the neurons. The large number of different odorant receptors appears to arise from several gene families or subfamilies rather than from DNA rearrangement.
Proteins from BACTERIA and FUNGI that are soluble enough to be secreted to target ERYTHROCYTES and insert into the membrane to form beta-barrel pores. Biosynthesis may be regulated by HEMOLYSIN FACTORS.
A group of organs stretching from the MOUTH to the ANUS, serving to breakdown foods, assimilate nutrients, and eliminate waste. In humans, the digestive system includes the GASTROINTESTINAL TRACT and the accessory glands (LIVER; BILIARY TRACT; PANCREAS).
Eighteen-carbon cyclopentyl polyunsaturated fatty acids derived from ALPHA-LINOLENIC ACID via an oxidative pathway analogous to the EICOSANOIDS in animals. Biosynthesis is inhibited by SALICYLATES. A key member, jasmonic acid of PLANTS, plays a similar role to ARACHIDONIC ACID in animals.
A family of insects in the order Dictyoptera (COCKROACHES), including genera Blattella, Parcoblatta, and Symploce.
A steroid hormone that regulates the processes of MOLTING or ecdysis in insects.
The volatile portions of substances perceptible by the sense of smell. (Grant & Hackh's Chemical Dictionary, 5th ed)
An order of nematodes of the subclass SECERNENTEA. Its organisms are characterized by an annulated or smooth cuticle and the absence of caudal glands.
The transfer of POLLEN grains (male gametes) to the plant ovule (female gamete).
Toxins closely associated with the living cytoplasm or cell wall of certain microorganisms, which do not readily diffuse into the culture medium, but are released upon lysis of the cells.
The observable response an animal makes to any situation.
A genus of the subfamily TRIATOMINAE. Several species are vectors of TRYPANOSOMA CRUZI.
A group of alicyclic hydrocarbons with the general formula R-C5H9.
Multicellular, eukaryotic life forms of kingdom Plantae (sensu lato), comprising the VIRIDIPLANTAE; RHODOPHYTA; and GLAUCOPHYTA; all of which acquired chloroplasts by direct endosymbiosis of CYANOBACTERIA. They are characterized by a mainly photosynthetic mode of nutrition; essentially unlimited growth at localized regions of cell divisions (MERISTEMS); cellulose within cells providing rigidity; the absence of organs of locomotion; absence of nervous and sensory systems; and an alternation of haploid and diploid generations.
The continuous sequence of changes undergone by living organisms during the post-embryonic developmental process, such as metamorphosis in insects and amphibians. This includes the developmental stages of apicomplexans such as the malarial parasite, PLASMODIUM FALCIPARUM.
Chemical substances, excreted by an organism into the environment, that elicit behavioral or physiological responses from other organisms of the same species. Perception of these chemical signals may be olfactory or by contact.
The total process by which organisms produce offspring. (Stedman, 25th ed)
Expanded structures, usually green, of vascular plants, characteristically consisting of a bladelike expansion attached to a stem, and functioning as the principal organ of photosynthesis and transpiration. (American Heritage Dictionary, 2d ed)
Collective name for a group of external MECHANORECEPTORS and chemoreceptors manifesting as sensory structures in ARTHROPODS. They include cuticular projections (setae, hairs, bristles), pores, and slits.
The reduction or regulation of the population of noxious, destructive, or dangerous plants, insects, or other animals. This includes control of plants that serve as habitats or food sources for animal pests.
Sexual activities of animals.
An enzyme of the oxidoreductase class that catalyzes the reaction between catechol and oxygen to yield benzoquinone and water. It is a complex of copper-containing proteins that acts also on a variety of substituted catechols. EC
The ability to detect scents or odors, such as the function of OLFACTORY RECEPTOR NEURONS.
Pheromones that elicit sexual attraction or mating behavior usually in members of the opposite sex in the same species.
The farthest or outermost projections of the body, such as the HAND and FOOT.
A functional system which includes the organisms of a natural community together with their environment. (McGraw Hill Dictionary of Scientific and Technical Terms, 4th ed)
DNA molecules capable of autonomous replication within a host cell and into which other DNA sequences can be inserted and thus amplified. Many are derived from PLASMIDS; BACTERIOPHAGES; or VIRUSES. They are used for transporting foreign genes into recipient cells. Genetic vectors possess a functional replicator site and contain GENETIC MARKERS to facilitate their selective recognition.
Bugs of the family CIMICIDAE, genus Cimex. They are flattened, oval, reddish insects which inhabit houses, wallpaper, furniture, and beds. C. lectularius, of temperate regions, is the common bedbug that attacks humans and is frequently a serious pest in houses, hotels, barracks, and other living quarters. Experiments have shown that bedbugs can transmit a variety of diseases, but they are not normal vectors under natural conditions. (From Dorland, 27th ed; Borror, et al., An Introduction to the Study of Insects, 4th ed, p272)
Diseases of plants.
An order of fungi in the phylum ASCOMYCOTA that includes a number of species which are parasitic on higher plants, insects, or fungi. Other species are saprotrophic.
A subfamily of assassin bugs (REDUVIIDAE) that are obligate blood-suckers of vertebrates. Included are the genera TRIATOMA; RHODNIUS; and PANSTRONGYLUS, which are vectors of TRYPANOSOMA CRUZI, the agent of CHAGAS DISEASE in humans.
The processes of diffusion across the BLOOD-AIR BARRIER, and the chemical reactions coupled with diffusion that effect the rate of PULMONARY GAS EXCHANGE, generally at the alveolar level.
A family of insect viruses isolated from endoparasitic hymenopteran insects belonging to the families Ichneumonidae and Braconidae. The two genera are Ichnovirus and Bracovirus.
Theoretical representations that simulate the behavior or activity of biological processes or diseases. For disease models in living animals, DISEASE MODELS, ANIMAL is available. Biological models include the use of mathematical equations, computers, and other electronic equipment.
The pattern of any process, or the interrelationship of phenomena, which affects growth or change within a population.
A plant genus of the family ASTERACEAE known for allergenic pollen (ALLERGENS).
A class of unsegmented helminths with fundamental bilateral symmetry and secondary triradiate symmetry of the oral and esophageal structures. Many species are parasites.
An order of insects comprising three suborders: Anisoptera, Zygoptera, and Anisozygoptera. They consist of dragonflies and damselflies.
A gene silencing phenomenon whereby specific dsRNAs (RNA, DOUBLE-STRANDED) trigger the degradation of homologous mRNA (RNA, MESSENGER). The specific dsRNAs are processed into SMALL INTERFERING RNA (siRNA) which serves as a guide for cleavage of the homologous mRNA in the RNA-INDUCED SILENCING COMPLEX. DNA METHYLATION may also be triggered during this process.
Organs and other anatomical structures of non-human vertebrate and invertebrate animals.
Organic compounds that have a relatively high VAPOR PRESSURE at room temperature.
Hormones produced by invertebrates, usually insects, mollusks, annelids, and helminths.
Bloodsucking flies of the genus Glossina, found primarily in equatorial Africa. Several species are intermediate hosts of trypanosomes.
A yellowish fossil resin, the gum of several species of coniferous trees, found in the alluvial deposits of northeastern Germany. It is used in molecular biology in the analysis of organic matter fossilized in amber.
Communication between animals involving the giving off by one individual of some chemical or physical signal, that, on being received by another, influences its behavior.
An order of very small, fringed-wing INSECTS including many agricultural pests.
Any behavior caused by or affecting another individual, usually of the same species.

The developmental basis for allometry in insects. (1/3798)

Within all species of animals, the size of each organ bears a specific relationship to overall body size. These patterns of organ size relative to total body size are called static allometry and have enchanted biologists for centuries, yet the mechanisms generating these patterns have attracted little experimental study. We review recent and older work on holometabolous insect development that sheds light on these mechanisms. In insects, static allometry can be divided into at least two processes: (1) the autonomous specification of organ identity, perhaps including the approximate size of the organ, and (2) the determination of the final size of organs based on total body size. We present three models to explain the second process: (1) all organs autonomously absorb nutrients and grow at organ-specific rates, (2) a centralized system measures a close correlate of total body size and distributes this information to all organs, and (3) autonomous organ growth is combined with feedback between growing organs to modulate final sizes. We provide evidence supporting models 2 and 3 and also suggest that hormones are the messengers of size information. Advances in our understanding of the mechanisms of allometry will come through the integrated study of whole tissues using techniques from development, genetics, endocrinology and population biology.  (+info)

Novel regulation of the homeotic gene Scr associated with a crustacean leg-to-maxilliped appendage transformation. (2/3798)

Homeotic genes are known to be involved in patterning morphological structures along the antero-posterior axis of insects and vertebrates. Because of their important roles in development, changes in the function and expression patterns of homeotic genes may have played a major role in the evolution of different body plans. For example, it has been proposed that during the evolution of several crustacean lineages, changes in the expression patterns of the homeotic genes Ultrabithorax and abdominal-A have played a role in transformation of the anterior thoracic appendages into mouthparts termed maxillipeds. This homeotic-like transformation is recapitulated at the late stages of the direct embryonic development of the crustacean Porcellio scaber (Oniscidea, Isopoda). Interestingly, this morphological change is associated with apparent novelties both in the transcriptional and post-transcriptional regulation of the Porcellio scaber ortholog of the Drosophila homeotic gene, Sex combs reduced (Scr). Specifically, we find that Scr mRNA is present in the second maxillary segment and the first pair of thoracic legs (T1) in early embryos, whereas protein accumulates only in the second maxillae. In later stages, however, high levels of SCR appear in the T1 legs, which correlates temporally with the transformation of these appendages into maxillipeds. Our observations provide further insight into the process of the homeotic leg-to-maxilliped transformation in the evolution of crustaceans and suggest a novel regulatory mechanism for this process in this group of arthropods.  (+info)

Why are there so few resistance-associated mutations in insecticide target genes? (3/3798)

The genes encoding the three major targets of conventional insecticides are: Rdl, which encodes a gamma-aminobutyric acid receptor subunit (RDL); para, which encodes a voltage-gated sodium channel (PARA); and Ace, which encodes insect acetylcholinesterase (AChE). Interestingly, despite the complexity of the encoded receptors or enzymes, very few amino acid residues are replaced in different resistant insects: one within RDL, two within PARA and three or more within AChE. Here we examine the possible reasons underlying this extreme conservation by looking at the aspects of receptor and/or enzyme function that may constrain replacements to such a limited number of residues.  (+info)

Cytochrome P450 monooxygenases and insecticide resistance in insects. (4/3798)

Cytochrome P450 monooxygenases are involved in many cases of resistance of insects to insecticides. Resistance has long been associated with an increase in monooxygenase activities and with an increase in cytochrome P450 content. However, this increase does not always account for all of the resistance. In Drosophila melanogaster, we have shown that the overproduction of cytochrome P450 can be lost by the fly without a corresponding complete loss of resistance. These results prompted the sequencing of a cytochrome P450 candidate for resistance in resistant and susceptible flies. Several mutations leading to amino-acid substitutions have been detected in the P450 gene CYP6A2 of a resistant strain. The location of these mutations in a model of the 3D structure of the CYP6A2 protein suggested that some of them may be important for enzyme activity of this molecule. This has been verified by heterologous expression of wild-type and mutated cDNA in Escherichia coli. When other resistance mechanisms are considered, relatively few genetic mutations are involved in insecticide resistance, and this has led to an optimistic view of the management of resistance. Our observations compel us to survey in more detail the genetic diversity of cytochrome P450 genes and alleles involved in resistance.  (+info)

High sequence turnover in the regulatory regions of the developmental gene hunchback in insects. (5/3798)

Extensive sequence analysis of the developmental gene hunchback and its 5' and 3' regulatory regions in Drosophila melanogaster, Drosophila virilis, Musca domestica, and Tribolium castaneum, using a variety of computer algorithms, reveals regions of high sequence simplicity probably generated by slippage-like mechanisms of turnover. No regions are entirely refractory to the action of slippage, although the density and composition of simple sequence motifs varies from region to region. Interestingly, the 5' and 3' flanking regions share short repetitive motifs despite their separation by the gene itself, and the motifs are different in composition from those in the exons and introns. Furthermore, there are high levels of conservation of motifs in equivalent orthologous regions. Detailed sequence analysis of the P2 promoter and DNA footprinting assays reveal that the number, orientation, sequence, spacing, and protein-binding affinities of the BICOID-binding sites varies between species and that the 'P2' promoter, the nanos response element in the 3' untranslated region, and several conserved boxes of sequence in the gene (e.g., the two zinc-finger regions) are surrounded by cryptically-simple-sequence DNA. We argue that high sequence turnover and genetic redundancy permit both the general maintenance of promoter functions through the establishment of coevolutionary (compensatory) changes in cis- and trans-acting genetic elements and, at the same time, the possibility of subtle changes in the regulation of hunchback in the different species.  (+info)

Activities of citrate synthase, NAD+-linked and NADP+-linked isocitrate dehydrogenases, glutamate dehydrogenase, aspartate aminotransferase and alanine aminotransferase in nervous tissues from vertebrates and invertebrates. (6/3798)

1. The activities of citrate synthase and NAD+-linked and NADP+-linked isocitrate dehydrogenases were measured in nervous tissue from different animals in an attempt to provide more information about the citric acid cycle in this tissue. In higher animals the activities of citrate synthase are greater than the sum of activities of the isocitrate dehydrogenases, whereas they are similar in nervous tissues from the lower animals. This suggests that in higher animals the isocitrate dehydrogenase reaction is far-removed from equilibrium. If it is assumed that isocitrate dehydrogenase activities provide an indication of the maximum flux through the citric acid cycle, the maximum glycolytic capacity in nervous tissue is considerably greater than that of the cycle. This suggest that glycolysis can provide energy in excess of the aerobic capacity of the tissue. 2. The activities of glutamate dehydrogenase are high in most nervous tissues and the activities of aspartate aminotransferase are high in all nervous tissue investigated. However, the activities of alanine aminotransferase are low in all tissues except the ganglia of the waterbug and cockroach. In these insect tissues, anaerobic glycolysis may result in the formation of alanine rather than lactate.  (+info)

Enhanced resistance to bacterial diseases of transgenic tobacco plants overexpressing sarcotoxin IA, a bactericidal peptide of insect. (7/3798)

Sarcotoxin IA is a bactericidal peptide of 39 amino acids found in the common flesh fly, Sarcophaga peregrina. Many agronomically important bacteria in Japan are killed by this peptide at sub-micro molar levels, and the growth of tobacco and rice suspension cultured cells is not inhibited with less than 25 microM. Transgenic tobacco plants which overexpress the peptide, i.e. over 250 pmol per gram of fresh leaf, under the control of a high expression constitutive promoter showed enhanced resistance to the pathogens for wild fire disease (Pseudomonas syringae pv. tabaci) and bacterial soft rot disease (Erwinia carotovora subsp. carotovora).  (+info)

Two subunits of the insect 26/29-kDa proteinase are probably derived from a common precursor protein. (8/3798)

We previously identified the 26/29-kDa proteinase in the hemocytes of Sarcophaga peregrina (flesh fly) that appears to participate in elimination of foreign proteins in this insect [Eur. J. Biochem. 209, 939-944 (1992)]. Here, we report the cDNA cloning of this proteinase. The cDNA encodes a protein which includes both the 26- and 29-kDa subunit, strongly suggesting that the both subunits are derived from a single precursor protein. The 26- and 29-kDa subunit located at the amino-terminal and carboxyl-terminal of the precursor protein. The 29-kDa subunit itself appeared to be a proteinase, for this subunit had 52% sequence identity with Sarcophaga cathepsin L, while 26-kDa subunit had no significant similarity. We also showed that 26/29-kDa proteinase was insensitive to specific inhibitors of cathepsin L. These results indicate that this proteinase is a novel member of the papain family. We isolated similar cDNAs from Drosophila melanogaster and Periplaneta americana (cockroach), suggesting that this proteinase is conserved in a wide variety of insects and participates in their defense mechanisms.  (+info)

Behavioral studies of stick insects have identified six mechanisms which coordinate leg stepping. All six are active between ipsilateral leg pairs. As a first step towards locating the neurons mediating these interactions, the present study describes the effects of cutting one of the paired thoracic connectives. After the operation the following changes in step coordination occurred. The ipsilateral leg immediately caudal to the severed connective generally showed weak stepping. In free-walking animals it often remained near its posterior extreme position and dragged along the substratum. During supported walking, rhythmic stepping was common, but the swing phase of this leg was longer and both temporal and spatial coordination were disturbed. When the leg made a pause it usually stopped in the air near the end of its swing movement. During steady walking, the operation interrupted information from the adjacent forward leg normally used to guide the end-point of the swing or to signal errors in ...
Allan J.D. 1982. Feeding habits and prey consumption of three setiplapian stoneflies (Plecoptera) in a mountain stream. Ecology 63:26-34.. Allan J.D. Flecker A.S. & McClintock N.L..1987. Prey size selection by carnivorous stoneflies. Limnol. Oceanogr. 32:864-72.. Baumann R.W. 1979. Nearctic stonefly genera as indicators of ecological parameters (Plecoptera: Insecta). Gt Basin Nat. 39:241 244.. Benfield E.F.1974.Autohemorrhage in two stoneflies (Plecoptera) and its effectiveness as a defense mechanism. Ann. ent. Soc. Am. 67:739.. Bottorff R.L & Knight A.W. 1987. Ectosymbiosis between Nanocladius downesi (Diptera: Chironomidae) and Acroneuria abnormis (Plecoptera: Perlidae) in a Michigan stream, USA. Ent. Gen.12:97-1113.. Brinck P. 1949. Studies on Swedish stoneflies. Opusc. Ent. Suppl. 11:1-126.. Brittain J.E. & Mutch R.A.1984.The effect of water temperature on the egg incubation period of Mesocapnia oenone (Plecoptera) from the Canadian Rocky Mountains. Can. Ent. 116:549-554.. Bukantis R.T. & ...
Storrer, J., and Cruse, Holk. 1977. Systemanalytische Untersuchung eines aufgeschnittenen Regelkreises, der die Beinstellung der Stabheuschrecke Carausius morosus kontrolliert: Kraftmessungen an den Antagonisten Flexor und Extensor tibiae: Open Loop Analysis of a Feedback Mechanism Controllingthe Leg Position in the Stick Insect Carausius morosus: Measurements of the Forces Produced by the Flexor and Extensor Tibiae Muscles. Biological cybernetics 25 (3): 131-142 ...
Bharadwaj RK. 1966. Observation on the bionomics of Euborellia annulipes (Dermaptera: Labiduridae). Annals of the Entomological Society of America 59:441-450.. Calixto A, Dean A, Knutson A, Harris M. 2006. Density changes of two earwigs, Labidura riparia (Pallas) and Euboriellia annulipes (Lucas) following fire ant reduction in Mumford, Texas. Southwestern Entomologist 31: 97-101. Choate P.M. 2001. The earwigs (Dermaptera) of Florida and eastern United States. (13 November 2002).. Hoffman KM. 1987. Earwigs (Dermaptera) of South Carolina, with a key to the eastern North American species and a checklist of North American Fauna. Proceedings of the Entomological Society of Washington 89:1-14.. Klostermeyer EC. 1942. The life history and habits of the ring-legged earwig, Euborellia annulipes (Lucus) (Order Dermaptera). Journal of the Kansas Entomological Society 15:13-18.. Lemos WP, Ramalho FS, Zanuncio JC. 2003. Age-dependent fecundity and ...
Green lacewings (Neuroptera: Chrysopidae) are voracious predators of aphids and other small, soft-bodied insects and mites. Earlier, we identified (1R,2S,5R,8R)-iridodial from wild males of the goldeneyed lacewing, Chrysopa oculata Say, which is released from thousands of microscopic dermal glands on the abdominal sterna. Iridodial-baited traps attract C. oculata and other Chrysopa spp. males into traps, while females come to the vicinity of, but do not usually enter traps. Despite their healthy appearance and normal fertility, laboratory-reared C. oculata males do not produce iridodial. Surprisingly, goldeneyed lacewing males caught alive in iridodial-baited traps attempt to eat the lure and, in Asia, males of other Chrysopa species reportedly eat the native plant, Actinidia polygama (Siebold & Zucc.) Maxim. (Actinidiaceae) to obtain the monoterpenoid, neomatatabiol. These observations suggest that Chrysopa males must sequester exogenous natural iridoids in order to produce iridodial; we investigated
Dohet, A. 2002. Are caddisflies an ideal group for the biological assessment of water quality in streams? Nova Supplementa Entomologica (Proceedings of the 10th International Symposium on Trichoptera) 15: 507-520.. Frania, H.E. and G.B. Wiggins. 1997. Analysis of morphological and behavioural evidence for the phylogeny and higher classification of Trichoptera (Insecta). Royal Ontario Museum Life Sciences Contributions 160. Ontario.. Friedlander, M. 1993. Phylogenetic position of rhyacophiloid caddisflies (Insecta, Trichoptera), a spermatological analysis of Rhyacophilidae and Glossosomatidae. Zoologica Scripta, 22(3): 299-304.. Friedlander, M. and R.E. Jeger. 1990. Phylogenesis of spermatogenesis in Annulipalpia caddisflies: An ultrastructural analysis on Philopotamidae spermiogenesis. Journal Of Structural Biology 105(1-3): 75-79.. Gall, W.K. 1994. Phylogenetic studies in the Limnephiloidea, with a revision of the world genera of Goeridae (Trichoptera). Ph.D. dissertation, Univ. of Toronto, ...
Dohet, A. 2002. Are caddisflies an ideal group for the biological assessment of water quality in streams? Nova Supplementa Entomologica (Proceedings of the 10th International Symposium on Trichoptera) 15: 507-520.. Frania, H.E. and G.B. Wiggins. 1997. Analysis of morphological and behavioural evidence for the phylogeny and higher classification of Trichoptera (Insecta). Royal Ontario Museum Life Sciences Contributions 160. Ontario.. Friedlander, M. 1993. Phylogenetic position of rhyacophiloid caddisflies (Insecta, Trichoptera), a spermatological analysis of Rhyacophilidae and Glossosomatidae. Zoologica Scripta, 22(3): 299-304.. Friedlander, M. and R.E. Jeger. 1990. Phylogenesis of spermatogenesis in Annulipalpia caddisflies: An ultrastructural analysis on Philopotamidae spermiogenesis. Journal Of Structural Biology 105(1-3): 75-79.. Gall, W.K. 1994. Phylogenetic studies in the Limnephiloidea, with a revision of the world genera of Goeridae (Trichoptera). Ph.D. dissertation, Univ. of Toronto, ...
Nobody wants creepy crawlers such as earwigs in their residence or commercial property regardless of whether they are harmless. You have to be aware of things that attract earwigs towards your place and focus on how to be successful in your way to get rid of earwigs. You must be conscious about preventing earwigs and enhancing your way of keeping the property free from insects.. Earwigs prefer to stay in the warm damp areas and hide under flower pots, mulch, leaf litter, woodpile, crawl spaces under houses. They usually enter the property to escape from dry or cold weather. They also come inside the house for food. They often follow the water from leaky pipes and usually gathered around the A/C unit outside.. There are different suggestions about how to catch earwigs. You need to fill the cat food cans with fish oil and drop them into the land near plants where earwigs usually appear. You have to empty such cans every day and set out some crumpled, lengths of old hose, damp newspaper, boxes with ...
As it turns out insects can breathe in air and they expel carbon dioxide into the air just like us, and all that! Oh…you knew that? I did not. How can they breathe? Where are their lungs? Okay I wont give myself a headache, and I feel one coming on, but I must share something with you concerning why an insect is, from mother natures point of view, better than you.. Insects are favored by evolution probably in large part because of the manner in which they breathe. Scientists call it discontinuous gas-exchange cycles, and this means exactly what you think it would: insects are able to survive a good length of time releasing very little or no carbon dioxide into the air at all.. So why is that so great you ask? Well it is pretty clear. If an insect can go without breathing, then pathogens are much less likely to enter into its respiratory system, and, therefore, insects are much less likely to die as a result of an offense to its organism. Is this the only advantage accorded to insects for ...
Many homeowners accept some insect damage, while others will tolerate none. The level of damage you deem acceptable largely determines the level of control required. Insecticidal control (applying chemicals) is still one of the quickest, easiest ways to control insects. But use it only when absolutely necessary. Sticking to a strict spray schedule is a waste of money in most cases. It may actually create pest problems by killing beneficial insects that eat other insects. And its generally not good for the environment.. Read and follow the instructions for safe mixing and application on the label of each pesticide you use. Pay close attention to the plants or crops a pesticide can and cant be used on. Concerning vegetables, pay close attention to the the amount of time required between the last application and harvest.. Gardeners willing to tolerate some insect damage can generally grow their plants with minimal use of insecticides. Some insects are always on the move - here today and gone ...
The Black Rubber Leg Stonefly works very well for nymphing. The rubber legs provide a magnitude of action in the water which helps to attract the fish. The flashy back will also draw in those big bass and trout. This fly fishing pattern is great for cloudy days and murky water. It is used best when a stonefly hatch i
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The presence of insects and pests is very common in a garden because it is a buggy place for insects. The presence of green vegetables, plants and plantations in a garden always attract plenty of insects. Some insects damage and harm the plantations but some other types of insects increase the growth of plants. Hence it is very important to control the population of insects in a garden to make sure the best performance of plants. There are hundreds of ways to control and kill the insects and pests like insecticides, pesticides and biological control. The use of cultural techniques and IPM is also best to lower the population of insects. The use of pesticides is associated with countless health hazards and drawbacks. The use of biological control is best to maintain the lower the population of insects. The most famous beneficial insects are following.. ...
There is scattered information on the status of and knowledge about stick insects in Māori tradition. Names include rō, whe and wairaka. In some traditions they were considered to be relatives of the mantis. If either of these landed on a woman it signified she was pregnant, and which insect it was indicated the childs sex. Some sayings claim that gardens are unsuitable where there are stick insects. In other sayings, when they drop onto you from a forest tree it is a sign that you have entered a sacred site.. In legend, before creating people, the god Tāne Mahuta fathered (with Punga) the trees, birds and insects of the forest. It was Tāne who pushed apart the sky (Ranginui) and earth (Papatūānuku) so there was light, allowing the forest inhabitants to see, breath and move. The insects are considered to be the children or embodiment of Tāne and deserving of respect.. In the story of Rātā, who cut down a tree to build a canoe without first paying respect to Tāne, the insects gathered ... This July 2018 video from Japan is about Stenopsyche marmorata caddisflies. From Shinshu University in Japan: Genome of Japanese insect delicacy sheds light on history of Earth October 4, 2018 Japanese scientists have shed light on the evolutionary biology and distribution of Stenopsyche caddisflies, also known as sedge flies, a common insect in Japanese…
There is a lot of talk concerning the health benefits of omega fatty acids. Currently omega fatty acids are among the best selling dietary supplements. At the moment insects are already being used to extract protein for dietary products like protein powder. During the protein extraction process, insect oil consisting of omega threes are also extracted, but the oil is not used. Instead the oil is thrown out and wasted. Many researches are disappointed that the valuable oil is wasted, and researchers now want to determine which insects are best for omega oil extraction. Additionally, researchers want to ascertain what an insects diet should consist of in order to extract the highest quality omega fatty acids. Insects naturally produce saturated and unsaturated fatty acids. So far the leading researcher involved in procuring fatty acids from insects has successfully extracted the highest quality oil from mealworms, beetle larvae, crickets, cockroaches, grasshoppers and soldier flies. The extracted ...
Caddis flies, order Trichoptera, were caught in light traps in Girton, Cambridge, UK, and in Llandinam, Powys, UK, during September and October 2012. The species caught fell into three broad categories according to body length and mass: (1) large (body length 10-15 mm and body mass 23-70 mg): Limnephilus marmoratus Curtis 1834, cinnamon sedge (family Limnephilae) and Odontocerum albicorne (Scopoli 1763), silver sedge (family Odontoceridae), N=22 insects; (2) medium (body length 7-12 mm and body mass 8-16 mg): Molanna angustata Curtis 1834 (family Molannidae) and Oecetis lacustris (Pictet 1834), longhorn caddis (family Leptoceridae), N=7 insects; and (3) small (body length 4.5-6 mm and body mass 1.5-6 mg): Mystacides azurea (Linnaeus 1761), silverhorn (family Leptoceridae), N=26 insects. No video data on Odontocerum albicorne and Oecetis lacustris are presented.. Photographs of live caddis flies were taken with a Nikon D90 camera fitted with a 100 mm Nikon macro lens. The anatomy of the legs was ...
University biologists agree, claiming that certain types of beetles, ants, crickets, and grasshoppers offer nearly as much protein per gram as lean red meat or broiled fish. Crickets need 12 times less feed than cattle to produce the same amount of protein.. Insects can also be rich in copper, iron, magnesium, manganese, phosphorus, selenium and zinc. They are also a source of fiber.. The UN said that insects provide a while slew of benefits outside of nutrition. The report claims that eating insects is also better for the environment - according to the agency, most insects are likely to produce fewer environmentally harmful greenhouse gases than other livestock.. The report pitched the idea of insect farming:. Insects are everywhere and they reproduce quickly. Currently, most edible insects are gathered in forests, and the small amount of insect farming which does take place serves niche markets such as the fish bait industry.. The UN even suggests that the restaurant industry could help in ...
Insect information from University of Minnesota Extension experts. This page lists insects by category: household insects, flower insects, fruit and vegetable insects, lawn insects, tree and shrub insects, biting insects and ticks, insect relatives, and general/curiousity insects.
Thats a lot to take in, so lets start with where stoneflies live. Stonefly nymphs live in swift, cold, clean water. Stoneflies are an excellent indicator species for the health of trout streams because, like trout, stoneflies cannot tolerate water that is warm, polluted, or carries a low oxygen content. The best place to find bugs is under rocks and gravel that are in the rivers current, especially in riffles where the natural churning effect of the water keeps it cool and full of oxygen.. The bugs will vary in size from less than 1/8 inch to over 1 inch long but are usually black, brown, or yellow in color. Their flat bodies and strong legs help them cling to underwater rocks, and theyre able to crawl along the bottom and among rocks with a distinct wiggling action. They do not swim, though they can become dislodged from rocks and drift downstream before finding another foothold.. Stoneflies go through a process called incomplete metamorphosis, meaning there is no wormlike larva stage or ...
A liquid bait for target insects and methods of attracting or controlling insects by means of its use. Sorbitol is dissolved in an amount of water sufficient to form an aqueous carrier. The dissolved sorbitol is in a concentration great enough to be effective as a humectant to retard drying of the liquid carrier. The liquid bait further includes at least one insect attractant that is dissolved, dispersed, suspended, or emulsified in the liquid carrier in an amount effective to attract the target insects. The insect attractant may include, in combination, sucrose, fructose, d-maltose, the lithium salt of saccharin, lithium chloride, and vitamins. The liquid bait also may include an effective amount of an insect control active ingredient selected from the group consisting of insecticides, insect growth regulators, chitin inhibitors, insect pathogens, insect-controlling materials derived from insect pathogens, and combinations thereof.
Introduction. Insects are overwhelmingly diverse ... so diverse you might well think it impossible to routinely recognize bugs, beetles and flies the way we expect at least a passing familiarity with most of the birds, mammals and other vertebrates that cross our paths. That perception is grounded in reality, since most known species of living things -- about a million of the 1.7 million or so named species -- are insects, and the number of insect species as yet undiscovered and unnamed undoubtedly runs into further millions. It all seems hopelessly overwhelming -- but it shouldnt.. Insect diversity, especially the almost untapped diversity of little-studied insects such as tiny tropical flies, should be seen as a rich ore of insights to be mined for generations to come rather than as a barrier to the study of insect natural history today. In fact, most insects are relatively easy to identify to a meaningful level. The orders of insects -- the big groups such as flies, beetles, dragonflies and ...
MANAGE INSECTS On Your Farm A Guide to Ecological Strategies Miguel A. Altieri and Clara I. Nicholls with Marlene A. Fritz HANDBOOK SERIES BOOK 7 MANAGE INSECTS ON YOUR FARM A Guide to Ecological Strategies
Insects can use plants as ℠green phones´ for communication with other bugs. A new study now shows that through those same plants insects are also able to leave ℠voicemail´ messages in the soil. Herbivorous insects store their voicemails via their effects on soil fungi. Researchers from the Netherlands Institute of Ecology (NIOO-KNAW) and Wageningen University (WUR) discovered this unique messaging service in the ragwort plant. The influential journal Ecology Letters will soon publish these results.. A few years ago, NIOO scientists discovered that soil-dwelling and aboveground insects are able to communicate with each other using the plant as a telephone. Insects eating plant roots change the chemical composition of the leaves, causing the plant to release volatile signals into the air. This can convince aboveground insects to select another food plant in order to avoid competition and to escape from poisonous defense compounds in the plant. But the impact doesn´t stop there.. The new ...
Hexapoda, the insects, insect body and modifications, insect antennae, insect mouthparts, insect legs, insect flight, insect reproduction
by Regina Cutter Edwards. Butterfly gardens are not just for butterflies, as you probably have noticed this summer. With all the colorful and fragrant flowers, come many types of insects. Normally, when referring to insects, there are good/beneficial insects and bad/harmful insects. But, when we look at our butterfly gardens and get excited because we have caterpillars feeding on the leaves, we are actually getting excited over what would be considered a bad insect, because it is feeding on our plants. Having an insect garden changes the whole thought process of what is really considered good and bad. In the big picture, all insects in our gardens are great, if we have a garden especially for insects. But, if you have a butterfly garden and the Stink Bugs are feeding on all the caterpillars, it can be a little depressing. It really all depends on your perspective and how you look at your garden. Below are a few types of insects you may find in your butterfly gardens.. ...
A majority of humans spend their waking hours surrounded by insects, so it should be no surprise that insects also appear in humans dreams as we sleep. Dreaming about insects has a peculiar history, marked by our desire to explain a dreams significance and by the tactic of evoking emotions by injecting insects in dream-related works of art, film, music, and literature. I surveyed a scattered literature for examples of insects in dreams, first from the practices of dream interpretation, psychiatry, and scientific study, then from fictional writings and popular culture, and finally in the etymology of entomology by highlighting insects with dream-inspired Latinate names. A wealth of insects in dreams, as documented clinically and culturally, attests to the perceived relevance of dreams and to the ubiquity of insects in our lives.
You may have thought that only birds were physically capable of migrating to warmer climates during the winter months, while tiny insects stay behind and perish in the icy conditions. As it turns out, many insects are just as capable as birds at moving to more hospitable climates when it is needed.. Researchers from Lund University in Sweden have been studying migratory patterns of various insects. The researchers were surprised at the high number of insect species that migrate south for the winter, and north for the summer. In fact, much of the scientific community was in agreement that most insects simply die during the winter or manage to survive with the help of progressively warmer winters, but they were wrong. The lead researcher at Lund University stressed the importance of monitoring migratory patterns of insects because many migrating insects are pests and keeping track of them is tremendously important, especially for farmers. However, monitoring insect travel patterns is also ...
The fossil record of the Dermaptera starts in the Late Triassic to Early Jurassic period about 208 million years ago in England and Australia, and comprises about 70 specimens in the extinct suborder Archidermaptera. Some of the traits believed by neontologists to belong to modern earwigs are not found in the earliest fossils, but adults had five-segmented tarsi (the final segment of the leg), well developed ovipositors, veined tegmina (forewings) and long segmented cerci; in fact the pincers would not have been curled or used as they are now.[16] The theorized stem group of the Dermaptera are the Protelytroptera. These insects, which resemble modern Blattodea, or cockroaches owing to shell-like forewings and the large, unequal anal fan, are known from the Permian of North America, Europe and Australia. There are no fossils from the Triassic when the morphological changes from Protelytroptera to Dermaptera took place.[42] The most likely, and most closely resembling, related order of insects is ...
Turf Pests & Insects , Lawn Pest Control Advice , Rolawn- insecticides for lawn insects pictures identification ,Turf Pests & Insects. There are many insects that feed on turf, but most do not cause a great deal of damage. If your lawn is affected by insects, you may want to enlist an expert to identify what type of insect it is, however the following guides will help with identifying and dealing with the most common lawn pests in the UK.Turf Disease Identification, Pictures of Lawn Problems and ...Several universities and organizations supply great pictures of diseased lawns online. Pictures may not be enough, unfortunately-many diseases and insects leave look-alike damage, at least to the untrained eye. The month of occurrence, recent weather conditions, location, soil, and especially turf type all help determine the possibilities ...
Insect communities and their interactions with plants are structured by habitat elements of ecosystems and their surrounding landscapes. For example diversity of some functional groups such as predatory ants changes with vegetation diversity and density at the scale of forest plots(1) while the amount of forest in a landscape increases the diversity and functions of insect communities relying on forest(2). Hence the retention of structural elements in forest stands (habitat trees, dead wood) and their surrounding landscapes (amount of forest) shape the diversity of insects and their functions.. From research on the effectiveness of management practices and habitat enhancement to increase insect diversity and ecosystem functions in agricultural landscapes(3) general hypotheses were formulated(2): for example the intermediate landscape complexity hypothesis describes that management at the habitat scale aiming to enhance biodiversity and ecosystem functions are most effective in landscapes of ...
Mayfly records compiled largely from country agency samples of river invertebrates together with research data from CEH, information from consultancy operations and casual records from amateur recorders. The Ephemeroptera Recording Scheme intends to produce an atlas of the data in due course ...
Grounds managers know that leaf-feeding insects can be a major problem for ornamentals. However, they may or may not be aware of how the damage they are seeing occurs. If you want to gain a greater understanding of such insects, the damage they can cause and effective control strategies, read on.The damage a leaf-feeding insect can inflict on a tree or shrub is significant in many cases. A graphic
Even tough-bite crappies, perch and sunfish dont stand a chance against the IMPULSE® Helium Stoneflys natural, slow-falling action. Fish it alone in shallow water or beneath a dropper spoon to reach deeper fish. Comes pre-rigged with a 1.6-inch IMPULSE®
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An insect trap and method of use. The insect trap has a roof, side walls, rear wall, front wall, and floor. The front wall has a front wall aperture, and the rear wall has at least one rear wall aperture. A plurality of dividers are disposed within the insect trap, with a divider aperture associated with each divider. The divider apertures alternate between being adjacent the floor and adjacent the roof in successive dividers. The method includes the steps of mounting an insect trap in a structure opening, allowing insect-enticing chemicals to waft from inside the structure opening to outside the structure opening through the insect trap, enticing the insect through a front wall aperture, divider apertures, and into an inner chamber adjacent the rear wall, and entrapping the insect within the inner chamber because the rear wall apertures are too small to admit passage to the insect.
Mai? 14, 1957 B. c. CHAPPELL LAMP CARRIED TRAP FOR MOTHS AND OTHER INSECTS Filed Jan. 25, 1954 IN VEN TOR. BE)? 7 c. cw PPE l. L fie/3M United States Patent LAMP CARRIED TRAP FOR Morris Ann orrmn INSECTS Bert C. Chappell, Pleasant Hill, Mo. Application January 25, 1954, Serial No. 405,779 1 Claim. (Cl. 43--113) This invention relates to improvements in devices for trapping and annihilating moths and other insects, particularly those with the ability to fly and which are attracted by light, such as from an incandescent lamp. The principal object of the present invention is to provide an insect trap and annihilator which can be readily suspended by an incandescent lamp bulb, so that insects attracted by the bulb when energized will be trapped and exterminated as a result of contact with heat from the bulb. Another important object of the invention is to provide an insect trap and annihilator constructed in such a manner as to not only catch and exterminate insects but to cause automatic expulsion ...
Insects such as fruit flies (Drosophila), Greater Wax Moths (Galleria) and a type of Hawkmoth (Manduca) can be used to test the efficacy of new antimicrobial drugs or to judge how virulent fungal pathogens are. It is now routine practice to use insect larvae to perform initial testing of new drugs and then to use mice for confirmation tests. As well as reducing by up to 90% the number of mice required, this method of testing is quicker as tests with insects yield results in 48 hours whereas tests with mice usually take 4-6 weeks.. We will continue to explore the similarities between insect and mammalian immune responses so that insects can be used as models to study different disease states in humans, said Dr Kavanagh. ...
Insect damage reduces sugar yields from sugar beet. Biotechnology is being used to make sugar beet more resistant to insect attack and increase sugar yields. Regulatory switches (plant promoters) are needed for steering the production of insecticidal compounds to insect damage sites. We identified several sugar beet switches that direct insect-fighting compounds to the root skin, the whole root or leaves. This information will be used to develop safer approaches of insect control to increase yields and reduce usage of chemical pesticides. To feed the rising global population will require that crops have an increased capacity to utilize shrinking natural resources and to resist diseases and insect pests. We studied plant responses to environmental stresses, primarily high soil salt concentrations due to reduced water availability. Our results demonstrate that a growth regulator gene known to enhance insect resistance supported plant growth in high salt concentrations, extended the growing period ...
Earwig: Earwig, (order Dermaptera), any of approximately 1,800 species of insects that are characterized by large membranous hindwings that lie hidden under short, leathery forewings. The name earwig is derived from the Anglo-Saxon word meaning
Over the past three decades there has been a dramatic increase in theoretical and practical studies on insect natural enemies. The appeal of insect predators, and parasitoids in particular, as research animals derives from the relative ease with which many species may be cultured and experimented with in the laboratory, the simple life cycles of most parasitoids, and the increasing demand for biological pest control. There is now a massive literature on insect natural enemies, so there is a great need for a general text that the enquiring student or research worker can use in deciding on approaches and techniques that are appropriate to the study and evaluation of such insects. This book fulfils that demand. A considerably updated and expanded version of a previous best-seller, it is an account of major aspects of the biology of predators and parasitoids, punctuated with information and advice on which experiments or observations to conduct, and how to carry them out. Guidance is provided, where
New genomic sequencing confirms that stick insects discovered near Lord Howe Island are the assumed-extinct Lord Howe stick insect.
Following is a transcript of the video.. Narrator: Humans might have built civilizations, but insects own the world. After all, over half of all known species are insects. So if they all suddenly vanished, youd notice. No more summers of singing cicadas and flickering fireflies. No bees to pollinate apple, cherry, peach, or almond trees. No one to make honey. A world without insects means a world with empty grocery-store shelves. But that would be just the beginning of our problems. Now, its impossible to say exactly what would go down, but heres a worst-case scenario of what could happen if all the insects disappeared.. There are a few insects most people would be happy to see vanish. Like mosquitoes. They kill hundreds of thousands of people every year by transmitting malaria, West Nile virus, and other diseases. But if they disappeared tomorrow, we might actually miss them. There are over 3,000 species of mosquitoes on Earth, all of which are food to birds, bats, frogs, and other animals. ...
Two types of photoreceptors are found in the median ocellus of Limulus. One type is maximally sensitive to ultraviolet (UV) light, the other to green light; they are called UV and VIS cells, respectively. Biphasic receptor potentials, consisting of a small initial hyperpolarizing phase and a later slow depolarizing phase, can be recorded from both receptor types. These biphasic responses are elicited in UV cells in response to long-wavelength light, and in VIS cells in response to ultraviolet light. Another type of hyperpolarizing response can be recorded in UV cells: after a bright ultraviolet stimulus, the cell remains depolarized; long-wavelength light rapidly returns the membrane potential to its value preceding ultraviolet illumination (this long-wavelength-induced potential change is called a repolarizing response). Also, a long-wavelength stimulus superimposed during a UV stimulus elicits a sustained repolarizing response. A third cell type (arhabdomeric cell) found in the median ...
Provides keys to identify families, genera, aquatic and terrestrial species of Neuroptera, including Megaloptera  Features over 600 illustrations
See the Insects: This is the main part of the app, and is an interactive insect encyclopedia. Navigation through the encyclopedia is by swiping through a series of meadow scenes, the insects in the different sections are on plants and flowers in the meadow. Insects featured in the app are from the order Diptera (flies), Hemiptera (cicada), Lepidoptera (butterflies and moths), Coleoptera (beetles, ladybugs) and Orthoptera (grasshoppers and crickets). The meadow can be viewed at night or day, and is accompanied by insect sounds to suit the time of day. For each order there is an introductory screen which teaches the student about that order, its features, lifecycle and feeding habits. The student can also use a magnifying glass to look more closely at the insect and learn about its body parts. There are also post-it notes with more information if you click on them. After the introduction, come screens that look like specimen boxes containing an insect which moves if you touch it! It also contains ...
The genetic basis of wing development has been well characterised for model insect species, but remains poorly understood in phylogenetically divergent, non-model taxa. Wing-polymorphic insect species potentially provide ideal systems for unravelling the genetic basis of secondary wing reduction. Stoneflies (Plecoptera) represent an anciently derived insect assemblage for which the genetic basis of wing polymorphism remains unclear. We undertake quantitative RNA-seq of sympatric full-winged versus vestigial-winged nymphs of a widespread wing-dimorphic New Zealand stonefly, Zelandoperla fenestrata, to identify genes potentially involved in wing development and secondary wing loss. Our analysis reveals substantial differential expression of wing-development genes between full-winged versus vestigial-winged stonefly ecotypes. Specifically, of 23 clusters showing significant similarity to Drosophila wing development-related genes and their pea aphid orthologues, nine were significantly upregulated in full
Discover Lifes page about the biology, natural history, ecology, identification and distribution of Odonata - Damselflies, Dragonflies, Anisoptera, Zygoptera, Dragonflies and Damselflies -- Discover Life
The Rubber legs stonefly nymph is one of my favorite stonefly nymph patterns for the Madison and Gallatin rivers. I tie this same pattern in lots of color combinations. Black, brown, golden, black and tan, black and orange, olive and brown are other good colors. Everyone has their favorite. Sizes range from #4 to #10. The great thing is that stonefly nymphs take two to three years to mature before emerging into adults, so there are always nymphs available for the fish year round. Arrick. ...
Teka Komisji Ochrony i Ksztaltowania Srodowiska Przyrodniczego 1: 195-201. Argentina( Trichoptera: Hydropsychidae). Trichoptera: Hydropsychidae: Smicrideinae) en master Uruguay. McLachlan in South America( Trichoptera: Hydropsychidae: Smicrideinae). 10182588 Yang; Armitage( Trichoptera: Lepidostomatidae and Goeridae). Nanjing Nongye Daxue Xuebao 29: 142-145. Contestants of a lowland term on reviews: a manner swamp-river in the Tinau River, Nepal. Trichoptera( Insecta), counter-light women de Cerrado no shopping re Parque Estadual da Serra de Caldas( Caldas Novas, Estado de Goias). A work of the Caddisflies of Turkey( Trichoptera). 10182588 biodiversity form in Turkey with the use of the audiovisual mites( Trichoptera, Leptoceridae). Sipahiler, 1993( Rhyacophilidae, Polycentropodidae, Hydropsychidae, Limnephilidae). 0 Latreille, 1829 in Turkey( Trichoptera, Psychomyiidae). Caddisfly Trichoptera philosophers in the links of original eyes in Latvia. audio-visual sequencers of Canaan Valley, West ...
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It is with great pleasure that we announce the publication of the volume A key to the larvae of Italian species of Dragonflies (Odonata) by G. Carchini, released in Italian and English.. In this edition a new key for the Italian dragonfly larvae is presented, previously published in 1983. The reason that justified this new edition is the opportunity to: include some species newly present in the Italian odonate fauna; to critically consider the publications published in the meantime; finally, to correct some imperfections, to be attributed to the inexperience of the then young author. In the new key 86 species are considered, of which six not present in the edition of 1983; additionally, for four further species characters useful for determination have been given. New characters have been added, also based on the color, in vivo, and aided by some color photographs. The volume is on sale for 10€, plus delivery costs.. For members the price is 5€, plus delivery costs.. ...
TY - JOUR. T1 - Effect of temperature on development, survival, and adult body size of two green lacewings, Mallada desjardinsi and Chrysoperla nipponensis (Neuroptera. T2 - Chrysopidae). AU - Nakahira, Kengo. AU - Nakahara, Ryoichi. AU - Arakawa, Ryo. PY - 2005/12/1. Y1 - 2005/12/1. N2 - To search for a useful biological control agent and to determine the optimal rearing conditions for the green lacewings Mallada desjardinsi and Chrysoperla nipponensis, thermal effects on development, survival, and adult body size were examined at seven constant temperatures (15.0, 17.5, 20.0, 22.5, 25.0, 27.5, and 30.0°C) with a photoperiod regime of 16L : 8D (h). The developmental zero of M. desjardinsi larvae was higher than that of C. nipponensis larvae. The developmental zeros of C. cornea and C. nipponensis in earlier reports were similar to that of C. nipponensis in the present study. On the other hand, that of M. desjardinsi in earlier studies was somewhat higher than that of M. desjardinsi in the ...
Dragonflies (Odonata) are one of the ancestral groups of extant insects. They represent one of the three most basal branches in the phylogeny of winged insects. The other two groups are the Ephemeroptera, mayflies, and Neoptera, the latter which covers the remaining winged insects. The first paper is about the phylogenetic position of Odonata in relation to the other basal insect clades using 18S and 28S rDNA sequences. It was demonstrated that there are under certain parameters a strong statistical support for a sister-group relationship between Odonata and Neoptera forming the group Palaeoptera. The second paper is about the phylogeny of the Holarctic dragonfly Leucorrhinia. Dragonfly larvae are frequently equipped with spines on the abdomen, with great variation in spinyness between species. From an analysis of sequences of ITS and 5.8S rDNA it was found that spines have been lost at least twice in Leucorrhinia, in the European L. rubicunda and again in a clade of North American species. The ...
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I am responsible for teaching insect physiology and toxicology. My research started on the physiology of the insect circulatory system then switched to insect neurophysiological techniques aimed at describing the mode of action of neurotoxic insecticides. I briefly studied insecticide resistance in cotton pests coinciding with the introduction of synthetic pyrethroids, and then worked on the physiology of cotton pests, especially diapause in the pink bollworm, Pectinophora gossypiella (Saunders). I was asked by USDA-APHIS to explore strategies for improving the sterile insect technique for controlling pink bollworm by replacing radiation with conditional lethal genes. In the summer of 2004 we created our first transgenic pink bollworm with a functioning lethal RIDL gene supplied by Luke Alphey of Oxford University. Our collaborators in USDA-APHIS have applied for permits to field release these transgenic insect strains meant for population suppression. Work on insect transformation brought us in ...
We investigated the effects of plant architecture on predator-prey interactions by quantifying the behavior of green lacewing larvae on perennial grasses with divergent leaf architectures. Crested wheatgrass produces flat, broad leaves similar to those of wheat, whereas Indian ricegrass bears linear leaves that are tightly rolled inward. In the absence of prey, lacewing time budgets and residence times were similar on the two grasses, although predators tended to search longer on crested wheatgrass. On plants infested with the Russian wheat aphid, lacewing larvae dislodged, contacted, and captured significantly more aphids on Indian ricegrass than on crested wheatgrass. Comparisons between aphid-free and aphid-infested plants suggest that differences in plant architecture modified prey accessibility rather than predator movement. Aphids on seedlings and mature plants of crested wheatgrass frequently occurred in concealed locations, such as in the rolls of immature leaves or in the blade-sheath junctions
Damselflies (suborder Zygoptera) are insects in the order Odonata. They feed on flies, mosquitoes, and other small insects. Although they look like dragonflies, the wings of most damselflies are held along, and parallel to, the body when at rest. Furthermore, the hind wing of the damselfly is essentially similar to the forewing, while the hind wing of the dragonfly broadens near the base. Damselflies are usually smaller than dragonflies and weaker fliers in comparison, and their eyes are separated ...
Tips For Proper Insect Control. One of the most difficult parts of home ownership is basic upkeep. People in generally dislike the idea of having to mow the yard, keep things neat and tidy, re-paint the house every few years, the list goes on and on. Many times, these things get put off as long as possible. Its understandable how that happens. People are busy, and no one can devote the amount of time thats necessary to making sure everythings properly done.. However, one of the things you should never leave off is insect control. When you get one insect, you get dozens, if not hundreds. And while some insects are only a minor annoyance, many more of the most common insects can be downright disastrous. Luckily, if youre willing to do a little bit of work, you can maintain proper insect control without having to worry about huge, sweeping renovations.. One of the first steps to proper insect control is to keep your lawn mowed. This is something many home owners have to do anyway, due to ...
Tips For Proper Insect Control. One of the most difficult parts of home ownership is basic upkeep. People in generally dislike the idea of having to mow the yard, keep things neat and tidy, re-paint the house every few years, the list goes on and on. Many times, these things get put off as long as possible. Its understandable how that happens. People are busy, and no one can devote the amount of time thats necessary to making sure everythings properly done.. However, one of the things you should never leave off is insect control. When you get one insect, you get dozens, if not hundreds. And while some insects are only a minor annoyance, many more of the most common insects can be downright disastrous. Luckily, if youre willing to do a little bit of work, you can maintain proper insect control without having to worry about huge, sweeping renovations.. One of the first steps to proper insect control is to keep your lawn mowed. This is something many home owners have to do anyway, due to ...
Paleontologists use fossilized remains of insect bodies to study anatomy and develop hypotheses about evolutionary processes. Typically the only evidence available for this type of work is remains of insect wings. Bodies of primitive flying insects are rarely preserved and therefore little is known about them. The North Attleboro fossil will provide researchers with evidence of how it moved once it landed on a surface, as well as its stance, position of its legs and details about its abdomen and thorax.. The impression is about three inches long and is imprinted on the flat side of a rock. The impression does not contain direct evidence of the insect having wings but Knecht and Benner say evidence suggests that it was a winged insect. According to Benner, the insects anatomy and body plan are consistent with those of primitive flying insects. He also points out that there are no walking tracks leading up to the body impression, indicating that it came from above.. Michael S. Engel, a leading ...
What do your perfume, picnic lunch and bright orange shirt have in common? They could be inviting trouble your way. Each of these items can attract stinging insects to you as the insects search for food. And those insects can be hard to avoid. Youve probably had close encounters with stinging insects around your home and outdoors. And you may even have experienced the pain of one or more stings. If you have, youre not alone-more than 500,000 people go to emergency rooms each year because of insect stings, according to the American College of Allergy, Asthma and Immunology (ACAAI). But there are ways you can reduce your risk of being bugged by insect stings-and possible allergic reactions to those stings. The prime pests All kinds of insects are around, especially in summer and early fall. To help reduce your risk of being stung, it helps if you recognize the insects that sting people the most. They include: Yellow jackets. These black and yellow insects usually build their papier-mâché-like ...
Dragonflies are large, slender insects that are up to 5 inches long. Dragonfly colors are brilliant blue, green, or brown. Compound eyes are large and hemisphere-shaped. Each compound eye has up to 28,000 separate lenses (ommatidia). The thorax is just behind the head and is the power center. Its strong muscles control the two pairs of wings.. Dragonflies belong to the Order Odonata. They have wings that extend horizontally to the side. They are unable to fold their wings flat against the body. Some smaller species are less than 1 inch long. Dragonfly legs are not made for walking. They bend, but are not very flexible. They have claws on the ends for grasping prey in flight and perching on leaves and twigs.. Darners are large and fast-flying dragonflies belonging to the family Aeschnidae. They are 2-3/4 to 4-3/4 inches long. They have large, clear wings with a span as wide as 5-7/8 inches. Darner naiads are 2 to 2-1/2 inches long with relatively short legs. Their flat lower lip lacks grasping ...
This journal publishes articles on the economic significance of insects, including types of insects, insecticides, biological control, and crop protection.
Environmental Entomology publishes reports on the interaction of insects with the biological, chemical, and physical aspects of their environment.
Sept 25 ,, Development and life histories,br,{{pdf,}}Development and life histories ,, Quiz 4: Primitive insect orders+,br,Aquatic insects ,, Dermaptera, Plecoptera, Embioptera, Pscoptera,br,{{pdf,}}Lab 9 ,,{{pdf,}}Reading part 1,br,{{pdf,}}Reading part 2,br,[ Maternal earwig],br,[ Bark lice ...
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Orders Dermaptera, Dictyoptera, Ephemeroptera, Mecoptera, Megaloptera, Neuroptera, Plecoptera, Psocoptera, Raphidioptera, Thysanoptera, Zygentoma ...
Orders Dermaptera, Dictyoptera, Ephemeroptera, Mecoptera, Megaloptera, Neuroptera, Plecoptera, Psocoptera, Raphidioptera, Thysanoptera, Zygentoma ...
"Angels and Insects Review". 22 February 1996. Retrieved 7 May 2017. "'Insects' Stings Society/ New film takes a ... Angels & Insects at IMDb Angels & Insects at Rotten Tomatoes (All articles lacking reliable references, Articles lacking ... "Angels & Insects VHS Specifications". 3 February 2003. Retrieved 8 May 2017. "Angels & Insects DVD Specifications ... Retrieved 8 May 2017.[unreliable source?] "Angels and Insects DVD Cover". MGM DVD. 2002. "Angels and Insects - Festival de ...
"The last film by Jan Švankmajer: Insects". Indiegogo. Retrieved 27 January 2017. Insects at IMDb v t e (CS1 Czech-language ... The actors find themselves living out their characters' roles and hallucinating insects. Insects is intercut with the creative ... "From the Life of Insects is a misanthropic play. My screenplay only extends this misanthropy, as man is more like an insect and ... Insects (Czech: Hmyz) is a surreal comedy film directed by Jan Švankmajer, the film is based on the play Pictures from the ...
Some insects or arthropods visit sites of carrion, but do not colonize them. This classification consists of those insects for ... Carrion insects are those insects associated with decomposing remains. The processes of decomposition begin within a few ... This role includes those insects which feed on, or act as parasites of, necrophagous species. These insects do not feed ... These insects may visit remains from time to time, or use them for concealment, but their presence can only be accounted for by ...
"Insects - Editorial Office". Insects. Retrieved 2018-09-29. "Insects - Societies". "Insects". 2020 Journal Citation Reports. ... The Insects is a peer-reviewed open access scientific journal of entomology published monthly by MDPI since 2010. The editor-in ... Insect Science'. The journal is abstracted and indexed in: AGORA AGRICOLA CABI Biological Abstracts BIOSIS Previews CAB ... ". "Insects - Awards" (PDF). Official website (Articles with short description, Short description is different from Wikidata, ...
... , later known as The Insects, are an instrumental English pop-jazz band. Startled Insects began around 1983 in ... By 1997, The Insects had written music for several documentaries, an animated feature film (The Secret Adventures of Tom Thumb ... Startled Insects (a.k.a. Overzoom) (12" EP, Antenna, 1984) Underworld/Black Spring (12" single, Antenna, 1985) Curse of the ... The Insects began to receive commissions to write music for other documentary specials, including several National Geographic ...
Insects is a 2009 album released by Gibraltarian flamenco/metal quintet Breed 77. It was released on 16 November 2009 on ... "The Battle of Hatin" was available as a free download from their website prior to the release of Insects. Wake Up was the first ... Breed 77 headlined a United Kingdom tour in support of the album in November 2009, titled "The Insects Are Here" tour. Support ... "Insects" - 6:04 "Who I Am" - 5:15 "New Disease" - 4:19 "One More Time" - 4:02 "In the Temple of Ram: Rise of the Bugs" - 5:41 " ...
It was the organ of the "Zoogeography and Evolution of Pacific Insects" program. It should not be confused with Pacific Insects ... "Pacific Insects Volume 10" (PDF). Official website v t e (Articles with short description, Short description is different from ... Pacific Insects was a quarterly peer-reviewed scientific journal published by the Entomology Department at the Bishop Museum ...
... at AllMusic "David Rothenberg: "Bug Music: How Insects Gave Us Rhythm and Noise"". The Diana Rehm Show. ... Insect groups mentioned include bees, ants, flies and the various singing insects such as cicadas, crickets, and beetles, while ... Insects and Human Life. Berg. pp. 181-216. ISBN 978-1-84520-949-0. Coelho, Joseph (2000). "Insects in Rock & Roll Music". ... Insect names have appeared in music from Rimsky-Korsakov's "Flight of the Bumblebee" to such popular songs as "Blue-tailed Fly ...
Multi-imaged and very complete (to N) Insect Stamps (in easy French) Beetles on Stamps Insects on Stamps ... Many countries have featured insects on stamps. Insect related topics such as the mosquito eradication (anti malaria) programme ... Insects only started to appear on stamps much later than other larger and more attractive animals. The first postal stamp ... Since then, insects have become popular subjects in philately. Between 1953 and 1969, about 100 stamps featuring beetles were ...
It still is a matter of discussion what the specific role of DNA methylation in insects is, as some insects such as Drosophila ... Epigenetics in insects is the role that epigenetics (hertiable characteristics that do no involve changes in DNA sequence) ... 7.6% in Mus musculus). In a comparison of different insect species and their respective methylation levels, there was a clear ... Those DNA methyltransferases are present in insects as well, although it varies between different species which specific Dnmt ...
Insects have long been used in religion, both directly (with live insects) and as images or symbols. In the Brazilian Amazon, ... the insect was a symbol of Khepri, the early morning manifestation of the sun god Ra, from an analogy between the beetle's ... Insects in religion, Symbolism, Entomology, Comparative mythology). ...
Insects in culture, Insects in religion, Mythological insects). ... Insect myths may present the origins of a people, or of their ... Insects have appeared in mythology around the world from ancient times. Among the insect groups featuring in myths are the bee ... ISBN 978-0-674-03558-4. "Use of Insects by Australian Aborigines". Cultural Entomology Digest. (1). Archived from ... Insects have often been taken to represent qualities, for good or ill, and accordingly have been used as amulets to ward off ...
... or edible insects are insect species used for human consumption. More than 2,000 insects species worldwide are ... freeze-dried insects (e.g., cricket flour). Insect burger: Hamburger patties made from insect powder / insect flour (mainly ... After that the insects are freeze-dried and packed whole, or pulverized to insect powder (insect flour), to be processed in ... Insects as feed Insect-based pet food List of edible insects by country Wageningen University/Yde Jongema (1 April 2017): List ...
... (2013-11-05). "Insects vs Robots: Insects vs Robots: MP3 Downloads". Retrieved 2014-04-02. ... Insects vs Robots (2010-02-02). "Geryl & The Great Homunculus: Insects vs Robots: MP3 Downloads". Retrieved 2014-04 ... Insects vs Robots is a five piece band from Venice, California They employ unusual instruments such as the violin, charango, ... "Bio - Insects vs Robots". Archived from the original on 2014-04-07. Retrieved 2014-04-02. › ...
... were a short lived Australian pop rock band formed in 1980. The group released one studio album and three ... Serious Young Insects formed in 1980 with Peter Farnan on vocals and guitar, Michael Vallance on vocals and bass guitar and ... "Serious Young Insects". Australian Rock Database. Passagen (Magnus Holmgren). Archived from the original on 11 October 2012. ... Australian musicologist, Ian McFarlane, described Serious Young Insects as a "quirky, three-piece Melbourne new wave band". In ...
Peter Singer argues that a lack of knowledge around the capacity for insects to have subjective experiences means that "insect ... Ahimsa Ethics of uncertain sentience Insect cognition Insect euthanasia Pain in invertebrates Keown, Damien (2005). Buddhist ... William Ellery Channing stated in a letter that he would never kill an insect and asserted that insects have been given same ... always watch for ants and insects. Prohibit the building of fires outside (lest insects be killed)". The Sefer Hasidim, a ...
"Pacific Insects Monographs". Oriental Insects. 3 (4): 326-326. 1969-12-01. doi:10.1080/00305316.1969.10433924. ISSN 0030-5316. ... Pacific Insects Monographs was a scientific journal published by the Entomology Department, Bishop Museum, between 1961 and ...
... is the debut album for American progressive metal band Thought Industry. It was released in 1992 through ... In 2005, Songs for Insects was ranked number 335 in Rock Hard magazine's book The 500 Greatest Rock & Metal Albums of All Time ...
Many chemically defended insect species take advantage of clustering over solitary confinement. Among some insect larvae in the ... Insects, along with having passive immunity, also show evidence of acquired immunity. Social insects additionally have a ... "Alarm pheromones and sociality in pre-social insects". Chemical Ecology of Insects. Ed. Bell, W. J., and R. T. Cardé. London: ... Insects portal Arthropods portal Insect ecology Antipredator adaptation Behavioral ecology Gillott, C. (1995). Entomology (2 ed ...
From sialomes to the sialoverse: an insight into salivary potion of blood-feeding insects. Adv. Insect Physiol. 37, 59e118. ... Heavy reliance on antibiotics, coupled with discomfort with insects in Western culture limited the field of insect pharmacology ... "The utilization of insects in the empirical medicine of ancient Mexicans". Journal of Ethnobiology. 8 (2): 195-202. "Insects ... developed from the saliva of blood-sucking insects, are currently on the market. Like plants and insects, arachnids have also ...
Insect based pet food Insect farming Makkar, H., Tran, G., Heuze, V., Ankers, P. (November 2014). "State-of-the-art on use of ... Insects as feed are insect species used as animal feed, either for livestock, including aquaculture, or as pet food. Due to ... FAO: Insects for food and feed European Food Safety Authority: Risk profile related to production and consumption of insects as ... An insect-based diet for farm animals has been scientifically investigated for pigs, poultry and edible fish. Insects can ...
Insects may have evolved from a group of crustaceans. The first insects were landbound, but about 400 million years ago in the ... The first winged insect likely evolved in the Devonian given the appearance of large numbers of insects with wings in the ... The oldest insect fossil has been proposed to be Rhyniognatha hirsti, estimated to be 400 million years old, but the insect ... Knowing that insects were terrestrial at that time and that some arthropods (like primitive insects) were living in the tree ...
Insects have sometimes formed characteristic features of artforms, as in Art Nouveau jewellery. Insect groups represented in ... The Hopi draw a variety of insects, but especially butterflies, on pottery. In other parts of the world, insects, most often ... 2009). "Musca depicta". Encyclopedia of Insects. Elsevier Science. p. 242. "Flowers in a Vase with Shells and Insects". The ... Use British English from January 2021, Insects in art, Entomology, Insects in culture). ...
... ScholarSpace (Articles with short description, Short description matches Wikidata, Insects of Hawaii, Fauna ... The Insects of Hawaii series, now under the editorship of James K. Liebherr of Cornell University, aims to provide a ... CSIRO Publishing: Australian Weevils University of Hawaii Press: Insects of Hawaii University of Hawaii Digital Repository: ... 1992) - Suborder Arthropleona; Suborder Symphypleona "University of Hawaii Press: Insects of Hawaii". Retrieved 2009-02-24. ...
The Impertinent Insect is a group of five fables, sometimes ascribed to Aesop, concerning an insect which may be a fly, gnat, ... Klein, Barrett A. (2012). "The Curious Connection Between Insects and Dreams". Insects. 3 (1): 1-17. doi:10.3390/insects3010001 ... Insects play important roles in around one hundred novels and a hundred short stories in English literature. They are used to ... Insects have appeared in literature from classical times to the present day, an aspect of their role in culture more generally ...
... is social signalling between insects of the same or different species, using chemicals. These ... Ali, Mahmoud Fadl; Morgan, E. David (1990). "Chemical communication in insect communities: a guide to insect pheromones with ... to be detected on an insect's cuticle by other insects' sense of taste. Many of these chemicals are pheromones, acting like ... Pest insects such as fruit moths are attracted by sex pheromones, allowing farmers to evaluate pest levels, and if need be to ...
"Between Angels and Insects" is the third single from rock band Papa Roach's second studio album, Infest. The song charted on ... "The Official Charts Company - Papa Roach - Between Angels and Insects". Official Charts Company. 5 May 2001. Retrieved 20 ...
Proverbs, M. D. (1982). "Sterile insect technique in codling moth control". Sterile Insect Technique and Radiation in Insect ... Sterilizing insects with ionizing radiation. pp. 233-268 In V. A. Dyck, J. Hendrichs, and A. S. Robinson (eds.), Sterile Insect ... Genetically modified insect Infertility Sterile insect technique Sterility (physiology) North, D T (1975). "Inherited Sterility ... Robinson, A. S. (2005), "Genetic Basis of the Sterile Insect Technique", Sterile Insect Technique, Berlin/Heidelberg: Springer- ...
List of least concern insects List of near threatened insects List of endangered insects List of critically endangered insects ... The IUCN also lists 15 insect subspecies as vulnerable. No subpopulations of insects have been evaluated by the IUCN. For a ... See: List of endangered insects, List of critically endangered insects. Vulnerable, endangered and critically endangered ... lists 608 vulnerable insect species. 10% of all evaluated insect species are listed as vulnerable. ...
"Feeder insects for your predatory insects". Keeping Insects. Retrieved 1 June 2014. Dick, Gail. "Insects a La Carte". Hedgehog ... lac dye's color comes from the insect bodies themselves. Insects portal Agriculture and Agronomy portal Food portal Insect ... Many suppliers of insects for reptiles offer live bugs and worms. Monitor lizards are typically fed live insects and may not ... The website Insects Are Food suggests refrigerating insects to slow them down without killing them, prior to boiling or ...
Stinging Insects. Flying Insects. Outdoor workers are at risk of being stung by flying insects (bees, wasps, and hornets) and ... Some insects are attracted to discarded food. Remain calm and still if a single stinging insect is flying around. (Swatting may ... Some insects (ex. Africanized honey bees) are known to hover above the water.. If an insect is inside your vehicle, stop slowly ... If a worker is stung by a stinging insect:. Have someone stay with the worker to be sure that they do not have an allergic ...
... and Student Reader Sample Peterson First Guide to Insects Sample This course inc ... The Book of Insects Teacher Sample, Student Book Sample, Flashcards Sample, ... The Book of Insects, Second Edition. The Book of Insects Sample. Insects are so small that we often pass them by. But they form ... The Book of Insects Student Workbook. Insects Student Workbook Sample. The Book of Insects Student Workbook provides exercises ...
... are an order of insects that have fascinated humanity for centuries with their beauty and predatory nature. ... The insect world is tough.. Not only do many insects sit on the lower end of the food chain, competition among individuals of ... As the insect sheds its old exoskeleton, the soft-bodied interior is exposed. This means an insect undergoing a molt is ... Insects do not have bones. Insects have an exoskeleton.. Bones, especially those found in mammals, comprise collagen and ...
The adult insect is 1/2 to 3/4 inch long with metallic green and bronze coloring. Females lay eggs in late spring on sun- ... Insects That Bore Holes In Trees. The United States is home to hundreds of bark beetle species (Scolytidae family). The eggs ... Wood-boring insects, typically beetles, moths or wasps, are more difficult to detect. The immature, or larval, stage of these ... USDA Forest Service: Forest Insect and Disease -- The Locust Borer * Iowa State University Department of Entomology: BugGuide ...
1957)‎. Resistance of insects to insecticides. WHO Regional Office for the Western Pacific. ...
Stoneflies or salmonflies are a group of insects with aquatic nymphal stages in the order Plecoptera. Stoneflies have a simple ... and for this reason these insects are economically important. Some of the best designs for fish-catching "flies" are based on ...
Monterey Mite & Insect Control Concentrate. Ortho Outdoor Insect Killer Concentrate. Ortho BugClear Insect Killer for Lawns & ... Spectracide Triazicide Insect Killer for Lawns & Landscapes Conc.; &. RTS1. Malathion. Bonide Malathion 50% Insect Control. ... Bayer BioAdvanced Complete Insect Killer for Soil & Turf I RTS1. Bayer BioAdvanced Insect Killer for Lawns RTS1. ... Scale Insects: Various scale insects feed on gardenias, including the soft scales - Japanese wax scale (Ceroplastes japonicus) ...
Common Soybean Insects. Insects play a critical role in the all cropping systems. As with all cropping systems, there ... Common insect pest of soybeans include soybean aphids, bean leaf beetles, two-spotted spider mite, Japanese beetle, stink bugs ... The soybean aphid (Aphis glycines) is a soft bodied insect, light green to pale yellow, less than 1/16th inch long. It also has ... Economic Threshold: An economic threshold is the insects population level or extent of crop damage at which the value of the ...
... our Womens Insect Shield Hoodie. Get free shipping and the best prices on Womens Shirts and Tops. ... Tell Biting Insects to Take a Hike. No Fly Zone repels biting insects like ticks, black flies and mosquitoes. Its odorless and ... Insect Shield® is an EPA-approved, invisible, odorless treatment that repels insects. ... Insect Shield® is an EPA-approved, invisible, odorless treatment that repels insects. ...
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We will use nets, lights and odors to identify a variety of beetles, moths, crickets and night-flying aquatic insects without ... Perhaps half of all insect and many bird species, are busily working after sunset. ... Insects After Dark. Perhaps half of all insect and many bird species, are busily working after sunset. We will use nets, lights ... and odors to identify a variety of beetles, moths, crickets and night-flying aquatic insects without harming them. Its ...
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... and insects. That means that the spiders, for example, are more distantly related to the insects than many researchers ... Where did insects come from? Natural History Museum of Los Angeles county scientists are major contributors to a new study ... Remipedes and insects together are now shown to be a sister group to all the other crustacea including the crabs, shrimps, and ... One of the most important results of this new study is support for the hypothesis that the insects evolved from a group of ...
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In the pantheon of social insects, sweat bees (Megalopta genalis) have a lowly position. Their micro-societies are made up of ... But a discovery about the brain of the humble sweat bee not only highlights the complexities of insect brains, it also helps ... Sean ODonnell of the University of Washington, Seattle, who works on brain development in social insects, including sweat bees ... It is easy to think of insects, with their pinhead-sized brains, as automatons robotically carrying out their tasks. ...
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Keep these insects away by making sure all pets in your home are on flea preventative products, keeping your home clean, and by ... Bad Bugs: Identify Insects and Bug Bites. *Reviewed By: Charles Patrick Davis, MD, PhD ... These insects spread through direct contact with the hair of a person infested with head lice. It is most common among ... In most cases, a tick-an insect about 3 to 5 mm long-must be attached 36-48 hours to spread Lyme disease. A circular, red, ...
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Close-ups of insects. November 21, 2008 10:31 PM Subscribe. The Insect Close-ups Flickr Pool is full of fascinating pictures. ... Brutal insect carnage January 14, 2012. "Why do we eat shrimp and crawfish but not their... November 5, 2011. walking on water ... Well its not all insects, per se, but its 100% full of win and awesome. Or fear and loathing, depending on how you feel about ... The key to the how-to guide--and the key to all insect close-ups: reversed lenses. Just do a Flickr search under the close-ups ...
Scientists who once documented new species of insects are now charting their perilous decline-and warning about what it will ... If insects were to vanish, the environment would collapse into chaos.". Like insects themselves, the threats to them are ... Where Have All the Insects Gone?. Scientists who once documented new species of insects are now charting their perilous decline ... Insects are, of course, also vital. Theyre by far the largest class of animals on Earth, with roughly a million named species ...
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  • Pests, like caterpillars or aphids, are straightforward to identify and treat because these insects, and the damage they cause, are visible on your plants. (
  • In addition to problems resulting from improper growing conditions, gardenias are also susceptible to several diseases, insect pests, and other problems. (
  • Many of the insects we studied provide important ecological services which are essential for maintaining healthy ecosystems, such as pollination, predation of crop pests and providing food for insectivorous birds and bats,' says co-author Gao Hu, a visiting scholar with Chapman from Nanjing Agricultural University in China. (
  • Insect migrations have been measured by radar before, the researchers note, but only for relatively few nocturnal farm pests. (
  • Many beneficial insects prey on other insects that are pests. (
  • Learn about non-native insects referred to as forest pests that could threaten park resources and forest health if they find a home in Yosemite. (
  • Most insect pests would simply lay low or decamp to another location, but the restriction of the levuana moth to a small island habitat spelled its doom. (
  • Experts agree that only a very small percentage of the insects and spiders in our yards and gardens are actually pests, feeding on our desirable vegetation or infecting it with plant diseases. (
  • Indeed, many insects are helpful partners in our gardens, devouring aphids and other plant-eating pests. (
  • Protect them from insecticides - Broad-spectrum insecticides kill beneficial insects right along with pests. (
  • Pesticides are a class of chemicals designed to kill pests (rodents, insects, or plants) that may affect agricultural crops or carry diseases like malaria and typhus. (
  • State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100193, China. (
  • Pesticides include any substance or mixture of substances intended to control a variety of pests such as insects, rodents, fungi, weeds and microorganisms. (
  • Workers with a history of severe al ergic reactions to insect bites or stings should carry an epinephrine autoinjector and wear medical ID jewelry stating their al ergy. (
  • No matter how careful you are about animals in your home, or how much care you take when you are outdoors, animal and insect bites and stings are sometimes unavoidable. (
  • Most insect stings cause only minor discomfort. (
  • Yellow jackets cause the most allergic reactions in the U.S. Stings from these insects cause many more deaths than poisonous snake bites because of severe allergic reactions. (
  • The two greatest risks from most insect stings are allergic reaction and infection. (
  • These are the most common symptoms of insect stings. (
  • Insect stings usually are minor annoyances. (
  • When someone is allergic to insect stings, the body's immune system , which normally fights infections, overreacts to proteins in the insect's venom. (
  • The best way to prevent allergic reactions to insect stings is to avoid getting stung in the first place. (
  • For some people, allergic reactions to insect stings can be life-threatening. (
  • To avoid bug bites and stings, use insect repellent according to label instructions, be careful when performing activities outside, wear protective clothing (like long pants or sleeves), and avoid heavily scented soaps and perfumes. (
  • If patients have a known allergy to insect stings, they should consult a physician to discuss carrying a prescription epinephrine self-administration sting kit with them. (
  • Sunburn, insects Keep an anesthetic spray (e.g., one containing benzocaine) to relieve of sunburn and discomfort due to insect stings and bites, as well as hydrocortisone, to remove the swelling from insect attack and other problems such as poison ivy and skin allergies. (
  • Insect Shield Repellent Apparel is EPA-registered to repel mosquitoes, ticks, flies and fleas, including those that can carry dangerous illnesses such as Lyme disease, malaria, West Nile virus or Zika virus. (
  • Botanicals Insect Repellent + home coupons! (
  • If also using sunscreen, always apply insect repellent after sunscreen. (
  • Find the right insect repellent for you by using EPA's search tool . (
  • Adults: Spray insect repellent onto your hands and then apply to a child's face. (
  • Personal measures such as using insect repellent, covering exposed skin with clothing, and using mosquito nets also provide simple, cost-effective--albeit not foolproof-- protection. (
  • Use insect repellent, wear long-sleeved shirts and long pants, and control mosquitoes inside and outside your home. (
  • Remember insect repellent and use it to prevent mosquito bites. (
  • Outdoor workers are at risk of being stung by flying insects (bees, wasps, and hornets) and fire ants. (
  • In the pantheon of social insects, sweat bees ( Megalopta genalis ) have a lowly position. (
  • Sean O'Donnell of the University of Washington, Seattle, who works on brain development in social insects, including sweat bees , says this is the first time that it has been shown that participation in a social group is associated with augmented brain development. (
  • There are all kinds of wonderful images to be found, of spiders , ladybugs , hornets , aphids , grasshoppers , worms , water striders and those superstars of the insect world, bees and butterflies . (
  • Bees, wasps, yellow jackets, and hornets belong to a class of insects called Hymenoptera. (
  • However, if you know you are allergic to any insects, like bees or wasps, keep an emergency epinephrine kit handy. (
  • There are millions of distinct species of arthropods, including all the insects, crustaceans, millipedes, centipedes, spiders, and a host of other animals, all united by having a hard external shell and jointed legs. (
  • That means that the spiders, for example, are more distantly related to the insects than many researchers previously thought. (
  • Several other types of arthropods commonly confused with insects are spiders, ticks and mites. (
  • Nature outings: Nature's super powers: insects and spiders, mini superheroes! (
  • Spiders and insects are a nuisance and they can carry diseases that make you and your family sick. (
  • They have been known to leap out of the water to catch insects and spiders. (
  • Attracts and supports beneficial insects. (
  • As with all cropping systems, there beneficial and harmful insects that can be found. (
  • While the vast majority of insects are either beneficial or harmless, we often are most familiar with those insects that cause problems. (
  • On the whole, insects are enormously beneficial. (
  • Also through the study of insects, we help to preserve beneficial species by understanding their behavior patterns and modifying their habitat. (
  • High levels of selenium are toxic to pest and beneficial insects alike. (
  • This shift proved remarkably beneficial: young and old insects were no longer competing for the same resources. (
  • Although beneficial insects won't keep our yards pest-free, their contributions should not be underestimated. (
  • Because different beneficial insects use pollen and nectar at different times, choose diverse plants with long, overlapping bloom periods. (
  • Provide shelter - Beneficial insects need protection from predators and human disturbances. (
  • These beneficial insects can find cover in perennial flower beds, hedgerows, cover crops and mulches. (
  • Provide water - Bird baths, shallow containers or temporary puddles, with sticks or rocks for perching, can help beneficial insects through dry periods. (
  • To minimize impacts on beneficial insects, choose chemicals that are less toxic and more specific. (
  • Gardeners who recognize their problem can order these beneficial insect assassins in mass quantities and release them near their garden. (
  • In general, it's a great process - using insects to fight insects means there's no synthetic chemicals used and there's practically no human labor involved in dispersing these beneficial bugs. (
  • Beneficial insects : nature's alternatives to chemical insecticides, animal predation, parasitism, disease organisms / by Lester A. Swan. (
  • Most beetles have an exceptionally thick exoskeleton, in comparison to other insect groups. (
  • Common insect pest of soybeans include soybean aphids, bean leaf beetles, two-spotted spider mite, Japanese beetle, stink bugs and dectes stem borer. (
  • We will use nets, lights and odors to identify a variety of beetles, moths, crickets and night-flying aquatic insects without harming them. (
  • Goliath beetles (genus Goliathus) are among the largest and most charismatic insects in the world. (
  • It may seem odd to memorialize extinct insects (and other invertebrates) when literally thousands of species remain to be discovered-after all, ants, worms, and beetles are very small, and the Amazon rainforest is very, very big. (
  • Convergent lady beetles feed primarily on aphids but will also consume whiteflies, other soft-bodied insects and insect eggs. (
  • Crickets, moths and other flying insects can hear the ultra high-pitched sonar of hunting bats, a talent that helps them avoid being eaten. (
  • Insect biochemist Kent Shelby and insect virologist Holly Popham studied two pest moths the cabbage looper and tobacco budworm raised on artificial diets that included higher-than-average levels of selenium. (
  • Three mosquito-like insects are seen. (
  • His areas of expertise include entomology, insect physiology, mosquito behavior and reproduction. (
  • For example, the mosquito is responsible for more deaths each year than any other insect. (
  • Typical household pesticide products are insect sprays, cleaning products and mosquito repellents. (
  • Insect Shield is EPA-approved and proven effective against ticks and mosquitoes. (
  • No Fly Zone repels biting insects like ticks, black flies and mosquitoes. (
  • Ticks must be removed properly with tweezers to minimize the chances of infection from these insects. (
  • Insects such as ticks can survive through winter. (
  • Ticks are small insects that live in grass, bushes, wooded areas, and along seashores. (
  • Whiteflies are not true flies but are more closely related to scale insects, mealybugs, and aphids. (
  • Just do a Flickr search under the 'close-ups of insects' group linked above for the query term ' reversed ' and see what I mean. (
  • All of the Memoria Press animal and insect studies are very well written. (
  • Information on animal and insect related hazards after a disaster including wild or stray animals, mosquitos, rodents, and more. (
  • Sources include chemicals found in household products, the workplace, at home, and in the environment and poisonings from foods, beverages, drugs and medicines, and animal and insect bites. (
  • Scientists who once documented new species of insects are now charting their perilous decline-and warning about what it will mean for the rest of us. (
  • Various species of insects boast ears in the strangest places, including on their necks and under their wings. (
  • An international team of scientists tested the impact of temperature patterns on 38 species of insects and analyzed the results along with historic climate data and projections for 2050 to 2059. (
  • Will warmer temperatures worsen the burden of insect-borne diseases such as malaria and dengue fever? (
  • however, these insects can carry serious diseases including Lyme disease and Rocky Mountain spotted fever. (
  • Health officials and disease control experts met November 28-30 in Baltimore, Maryland, for a symposium on the use of satellites to monitor and control insect-transmitted diseases. (
  • Although clinically distinctive, urticaria may be confused with a variety of other dermatologic diseases that can be similar in appearance and are pruritic, including atopic dermatitis (eczema), maculopapular drug eruptions, contact dermatitis, insect bites, erythema multiforme, pityriasis rosea, and others. (
  • This additional grouping based upon like features is known as a class, the largest of which is Insecta, which includes all insects. (
  • Insects, like all other living organisms, are grouped into orders, often by characteristics such as physical appearance and behavior. (
  • Grow live crickets, Mealworms Superworms, Wax Worms, Fruit Flies, or any number of feeder insects with ouir breeding kits. (
  • Pet food makers are increasingly using insects such as flies, mealworms and crickets as a sustainable source of protein in pet food and treats, capitalizing on rising pet ownership and booming demand from environmentally conscious consumers. (
  • Megan Miller, who creates flour milled from crickets, talks about the value of eating insects and how to get over the "ick factor. (
  • It takes a charmingly narrative approach to the life of insects, and we have written a workbook to go along with it that takes your student through the identification of different kinds of insects, insect anatomy, and more! (
  • Swammerdam dissected all kinds of insects under a microscope, confirming that the larva, pupa and adult insect were phases in the development of a single individual, not distinct creatures. (
  • Nectar, pollen and plant juices can also help predators (insects such as ladybird beetle larvae, above, that consume other harmful insects) survive times when prey numbers are low. (
  • Ladybugs - Also available under their scientific name, Hippodamia convergens , ladybugs eat a wide variety of pest insects, larvae and eggs. (
  • From seafood industries worth billions of dollars annually to the world's economy, to the importance of insects as pollinators of ornamental and agriculturally important crops, to the medical role played by arthropods (e.g. as disease vectors and parasites), to biological control of introduced species, to their role in every known food web, to toxicology and biopharmaceuticals, arthropods are by far the planet's most important group of animals. (
  • Wolbachia is a common bacteria that has the ability to infect up to 70 percent of the world's insect species. (
  • The world's oldest bats come from the same time period as these insects, though not all of them used echolocation to hunt. (
  • The world's insects are hurtling down the path to extinction, threatening a "catastrophic collapse of nature's ecosystems", according to the first global scientific review. (
  • The insect was identified as most probably the cuckoo wasp (Hymenoptera. (
  • Insects that are members of the Hymenoptera family most commonly cause allergic reactions. (
  • As the insect sheds its old exoskeleton, the soft-bodied interior is exposed . (
  • The soybean aphid (Aphis glycines) is a soft bodied insect, light green to pale yellow, less than 1/16th inch long. (
  • Nectar can help parasitoids (insects that develop in or on another insect pest) span periods when hosts are few. (
  • This strategy uses specially introduced predatory or parasitic insects to control another insect population that's actively harming a crop. (
  • The technical challenges of creating robotic insects are daunting, and most experts doubt that fully working models exist yet. (
  • Fearing, who is building his own robotic insects, says that he was very impressed with the fact that Wood's insect can fly: "It is certainly a major breakthrough. (
  • Some of the best designs for fish-catching "flies" are based on the shape and color of stoneflies, especially the adult insects. (
  • In 2021, European Union officials authorized the use of some farmed insects in human food, and U.S. pet food and animal feed regulators added black soldier flies to the list of insects that can be used in dog food. (
  • It's great fun to see them fire water at flies and other insects, mostly swimming near the surface of the water. (
  • Permethrin is an insecticide that kills or repels insects like mosquitoes and sand flies. (
  • Bugs are just one type of insect found in Yosemite. (
  • It's sometimes hard to know which type of insect caused the bite, or if the rash is caused by poison ivy or other skin conditions. (
  • Bugs and insects are words that are used interchangeably. (
  • As with any insect, the true bugs do not have bones . (
  • Damsel bugs are slender, grayish or tan insects that reach about 3/8-inch in length. (
  • True" Bugs - A variety of true bugs, defined as insects that suck up juicy nutrients rather than rending it with mouth parts, can be used in biological pest control. (
  • An extremely evil book marked with an X has unleashed a swarm of X-winged insects, and the bugs are on the hunt for their favorite food-books! (
  • If you think that your child might have had an allergic reaction to an insect sting, call your doctor. (
  • The doctor can help you understand the difference between what usually happens with an insect sting and what happens with an allergic reaction . (
  • An Introduction to the Study of Insects, 4th ed, p1). (
  • Scientists have only recently come to understand how insects fly. (
  • People have known since at least the time of ancient Egypt that worms and grubs develop into adult insects, but the evolution of insect metamorphosis remains a genuine biological mystery even today. (
  • They also prey on insect eggs. (
  • The archerfish are a strange family of fish that hunts their insect prey by spitting a stream of water, knocking them out of the air or off branches into the water where they can make a meal out of them. (
  • If selenium boosts pest insects' immunity, it could decrease the effectiveness of baculoviruses as a tool to control and reduce their populations. (
  • His videos are as fascinating as they are beautiful and this one of various insects preparing for flight and taking off at 6,000fps is no exception. (
  • This timeline is a series of daily posts recording our observations on and experiences with various insects in Albany California and surrounding areas, from 2012-2017. (
  • The researchers used radar sites in southern England to record larger insects flying more than 150 meters (492 feet) overhead. (
  • The researchers set out their conclusions in unusually forceful terms for a peer-reviewed scientific paper: "The [insect] trends confirm that the sixth major extinction event is profoundly impacting [on] life forms on our planet. (
  • But the researchers' results suggest that moderate dietary levels of selenium may strengthen insect immunity. (
  • While much work remains to be done on the mechanical insect, the researchers say that such small flying machines could one day be used as spies, or for detecting harmful chemicals. (
  • Other researchers have built robots that mimic insects, but this is the first two-winged robot built on such a small scale that can take off using the same motions as a real fly. (
  • This fossil leaf insect bears considerable resemblance to extant individuals in size and cryptic morphology, indicating minimal change in 47 million years," write the researchers led by Sonja Wedmann of the Rheinische Friedrich-Wilhelms-Universitat in Bonn, Germany. (
  • One group of researchers, the High-impact Insect Invasions Working Group (HIIWG), has developed a predictive model that can be used to estimate the likelihood that a newly arriving nonnative insect may significantly impact North American conifers. (
  • The researchers then developed a statistical model to predict the probability that a conifer specialist yet to arrive in North America would cause significant damage to conifers if the insect became established. (
  • Selenium could play a key role in effective integrated pest-management, according to Agricultural Research Service ( ARS ) scientists with the Biological Control of Insects Research Laboratory in Columbia, Mo. (
  • Some insects kill our crops and trees, but a variety of others protect and pollinate the plants we depend on. (
  • By studying insects, we gain a better understanding of their role in the web of life, as indicators of environmental quality, as predators of harmful species, and as potential threats to crops, homes and health. (
  • In 1651 English physician William Harvey published a book in which he proposed that caterpillars and other insect larvas were free-living embryos that abandoned nutrient-poor 'imperfect eggs' before they matured. (
  • The important role of insects is clear to scientists. (
  • One insect evades scientists statewide: the valley elderberry longhorn beetle, noted in Yosemite and the surrounding area, and listed as federally threatened. (
  • Insects, in summary, remain one of the most important animal groups being studied by Yosemite's scientists. (
  • He has contributed to numerous journal publications in entomology, and he has participated in nearly 30 patents for technologies in insect and plant gene expressions. (
  • Insecticidal soap or horticultural oil sprays are effective against whiteflies, but the plant must be sprayed thoroughly so that the soap or oil contacts the insects on the underside of leaves. (
  • Insects pollinate plants and provide food for birds, fish and animals. (
  • It has evolved in different ways - some insects even rely on it for their existence, but in others, it plays a parasitic role and can interfere with the viability of eggs. (
  • When a patient is stung by a bee or other insect, he or she should remove the stinger immediately by scraping it out with a fingernail or wiping a clean piece of gauze over the area. (
  • Read through a 2008 University of California White Mountain Research Station study on Yosemite's insects as affected by meadow trails and trampling. (
  • Permethrin is an insecticide that kills mosquitoes and other insects. (
  • Hemimetaboly, or incomplete metamorphosis, describes insects such as cockroaches, grasshoppers and dragonflies that hatch as nymphs-miniature versions of their adult forms that gradually develop wings and functional genitals as they molt and grow. (
  • These are typically insects with sucking mouthparts, found within the order Hemiptera. (
  • This insect has a piercing‐sucking mouthparts and is typically found feeding on new tissue on the underside of soybean leaves. (
  • The new analysis in Nature shows that the remipedes are the crustaceans most closely related to the insects. (
  • One of the most important results of this new study is support for the hypothesis that the insects evolved from a group of crustaceans. (
  • If insects were to vanish, the terrestrial ecosystems would collapse into chaos. (
  • The total mass of insects is falling by a precipitous 2.5% a year, according to the best data available, suggesting they could vanish within a century. (
  • Use Environmental Protection Agency (EPA)-registered insect repellents with one of the active ingredients below. (
  • When used as directed, EPA-registered insect repellents are proven safe and effective, even for pregnant and breastfeeding women. (
  • Use Environmental Protection Agency (EPA)-registered insect repellents containing DEET, picaridin, IR3535, Oil of Lemon Eucalyptus (OLE), para-menthane-diol (PMD), or 2-undecanone. (
  • Scales are unusual insects in appearance, and as a result, are sometimes misidentified by gardeners either as parts of the plant itself or as disease organisms rather than insects. (
  • Some efforts in MAV research have involved trying to mimic birds or flying insects to achieve flight capabilities not attainable through other means of aerial propulsion. (
  • All insects have three main body segments - head, thorax and abdomen. (
  • That means that these insects evolved their supersensitive hearing before bat predators came to be. (
  • With the discovery of a 47 million year old fossil of a lead insect, new research suggests that cryptic leaf-mimicking camoflauge is a time-tested strategy used by insects to avoid predators. (
  • The find indicates that leaf mimicry had already evolved early in the Eocene period when insect predators would have included birds, early primates, bats, and other insects. (