Hemiptera: 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.Triatoma: A genus of the subfamily TRIATOMINAE. Several species are vectors of TRYPANOSOMA CRUZI.Heteroptera: 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)Reduviidae: A family of winged insects of the suborder HETEROPTERA, called assassin bugs, because most prey on other insects. However one subfamily, TRIATOMINAE, attacks humans and other vertebrates and transmits Chagas disease.Nymph: 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.Triatominae: 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.Rhodnius: A genus of the subfamily TRIATOMINAE. Rhodnius prolixus is a vector for TRYPANOSOMA CRUZI.Panstrongylus: A genus of cone-nosed bugs of the subfamily TRIATOMINAE. Its species are vectors of TRYPANOSOMA CRUZI.Aphids: 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.Cimicidae: A family of wingless, blood-sucking insects of the suborder HETEROPTERA, including the bedbugs and related forms. Cimex (BEDBUGS), Heamatosiphon, and Oeciacus are medically important genera. (From Dorland, 28th ed)Insect Vectors: Insects that transmit infective organisms from one host to another or from an inanimate reservoir to an animate host.ArgentinaInsect Control: The reduction or regulation of the population of noxious, destructive, or dangerous insects through chemical, biological, or other means.Chagas Disease: Infection with the protozoan parasite TRYPANOSOMA CRUZI, a form of TRYPANOSOMIASIS endemic in Central and South America. It is named after the Brazilian physician Carlos Chagas, who discovered the parasite. Infection by the parasite (positive serologic result only) is distinguished from the clinical manifestations that develop years later, such as destruction of PARASYMPATHETIC GANGLIA; CHAGAS CARDIOMYOPATHY; and dysfunction of the ESOPHAGUS or COLON.Oviposition: 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.Bedbugs: 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)Animal Distribution: A process by which animals in various forms and stages of development are physically distributed through time and space.Hymenoptera: An extensive order of highly specialized insects including bees, wasps, and ants.BoliviaFeeding Behavior: Behavioral responses or sequences associated with eating including modes of feeding, rhythmic patterns of eating, and time intervals.Population Density: Number of individuals in a population relative to space.Swallows: The family Hirundinidae, comprised of small BIRDS that hunt flying INSECTS while in sustained flight.Genome, Mitochondrial: The genetic complement of MITOCHONDRIA as represented in their DNA.Host-Parasite Interactions: 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.Life Cycle Stages: 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.Pest Control, Biological: Use of naturally-occuring or genetically-engineered organisms to reduce or eliminate populations of pests.Cameroon: A republic in central Africa lying east of CHAD and the CENTRAL AFRICAN REPUBLIC and west of NIGERIA. The capital is Yaounde.Trypanosoma rangeli: A hemoflagellate parasite affecting domestic and wild animals, as well as humans and invertebrates. Though it induces an immune response, it is non-pathogenic in humans and other vertebrates. It is cross-reactive with TRYPANOSOMA CRUZI and can thus cause false positives for CHAGAS DISEASE.Entomology: A discipline or occupation concerned with the study of INSECTS, including the biology and the control of insects.Tsuga: A plant genus in the family PINACEAE, order Pinales, class Pinopsida, division Coniferophyta. They are coniferous evergreen trees and should not be confused with hemlock plants (CICUTA and CONIUM).Trypanosoma cruzi: The agent of South American trypanosomiasis or CHAGAS DISEASE. Its vertebrate hosts are man and various domestic and wild animals. Insects of several species are vectors.BrazilPassiflora: A plant genus of the family Passifloraceae, order Violales, subclass Dilleniidae, class Magnoliopsida. They are vines with ornamental flowers and edible fruit.Defecation: The normal process of elimination of fecal material from the RECTUM.Predatory Behavior: Instinctual behavior pattern in which food is obtained by killing and consuming other species.Phylogeny: The relationships of groups of organisms as reflected by their genetic makeup.Planococcus Insect: A genus of insect in the mealybug family Pseudococcidae.Cytochromes b: Cytochromes of the b group that have alpha-band absorption of 563-564 nm. They occur as subunits in MITOCHONDRIAL ELECTRON TRANSPORT COMPLEX III.Insects: 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)Brachiaria: A plant genus of the family POACEAE originating from the savanna of eastern Africa. It is widely grown for livestock forage.Insect Proteins: Proteins found in any species of insect.Coxiellaceae: A family of gram-negative bacteria in the order Legionellales. It includes genera COXIELLA and Rickettsiella.Beetles: INSECTS of the order Coleoptera, containing over 350,000 species in 150 families. They possess hard bodies and their mouthparts are adapted for chewing.Host Specificity: The properties of a pathogen that makes it capable of infecting one or more specific hosts. The pathogen can include PARASITES as well as VIRUSES; BACTERIA; FUNGI; or PLANTS.Animal Structures: Organs and other anatomical structures of non-human vertebrate and invertebrate animals.Genes, Mitochondrial: Genes that are located on the MITOCHONDRIAL DNA. Mitochondrial inheritance is often referred to as maternal inheritance but should be differentiated from maternal inheritance that is transmitted chromosomally.Biological Control Agents: Organisms, biological agents, or biologically-derived agents used strategically for their positive or adverse effect on the physiology and/or reproductive health of other organisms.Symbiosis: 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.Insecticides: 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.Tamaricaceae: A plant family of the order Violales, subclass Dilleniidae, class Magnoliopsida.Genome, Insect: The genetic complement of an insect (INSECTS) as represented in its DNA.Chromosomes, Insect: Structures within the CELL NUCLEUS of insect cells containing DNA.Species Specificity: 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.Gammaproteobacteria: A group of the proteobacteria comprised of facultatively anaerobic and fermentative gram-negative bacteria.Arecaceae: The palm family of order Arecales, subclass Arecidae, class Liliopsida.MexicoAnal Sacs: A pair of anal glands or sacs, located on either side of the ANUS, that produce and store a dark, foul-smelling fluid in carnivorous animals such as MEPHITIDAE and DOGS. The expelled fluid is used as a defensive repellent (in skunks) or a material to mark territory (in dogs).Disease Vectors: Invertebrates or non-human vertebrates which transmit infective organisms from one host to another.