Pheromones that elicit sexual attraction or mating behavior usually in members of the opposite sex in the same species.
INSECTS of the order Coleoptera, containing over 350,000 species in 150 families. They possess hard bodies and their mouthparts are adapted for chewing.
The movement of cells or organisms toward or away from a substance in response to its concentration gradient.
Chemical substances that attract or repel cells. The concept denotes especially those factors released as a result of tissue injury, microbial invasion, or immunologic activity, that attract LEUKOCYTES; MACROPHAGES; or other cells to the site of infection or insult.