title: Evidence for an antiaphrodisiac in the sweat bee Lasioglossum (Dialictus) zephyrum.
abstract: Male Lasioglossum (Dialictus) zephyrum in the field are attracted to models impregnated with the odor of virgin females. The number of males responding increases with increasing odor concentration. Once a male has contacted a model, its attractiveness to other males is reduced, suggesting that the male may contribute an antiaphrodisiac cue so that other males avoid mated females.
mesh_terms: D000818:Animals; D001516:Bees / Q000502:physiology*; D005260:Female; D008297:Male; D010675:Pheromones / Q000502:physiology*; D012724:Sex Attractants / Q000037:antagonists & inhibitors / Q000502:physiology*; D012726:Sexual Behavior, Animal / Q000502:physiology*
chemical_list: D010675:Pheromones; D012724:Sex Attractants