In most moths and many other insects, a species-specific pheromone blend is released by the female. The signal is detected by a downwind male via sensory receptors on the antennae.
Males then initiate upwind flight toward the pheromone source.
When the male arrives at the source of the pheromone, courtship and mating occurs. Pheromonal blends often determine the species-specificity of the emitted signal. Studies of these types of chemical communication systems could lead to an understanding of the process of speciation. In addition, synthetic pheromones can be used in a variety of ways to control insect pests. My research program focuses on genetic, physiological, behavioral and evolutionary aspects of chemical communication in insects.