The neuropeptide sulfakinin is a peripheral regulator of insect behavioral switch between mating and foraging.

Behavioral strategies for foraging and reproduction in the oriental fruit fly () are alternative options for resource allocation and are controlled by neuropeptides. Here, we show that the behavioral switch between foraging and reproduction is associated with changes in antennal sensitivity. Starved flies became more sensitive to food odors while suppressing their response to opposite-sex pheromones.