Behavioral and electrophysiological responses of the parasitic wasp Psyttalia concolor (Szépligeti) (Hymenoptera: Braconidae) to Ceratitis capitata-induced fruit volatiles

► Psyttalia concolor ♀♀ prefer medfly-infested peaches and apples over healthy ones. ► Twelve volatiles (HIPVs) are characteristic of infested peaches and apples. ► Except ethanol and ethyl acetate all HIPVs evoke GC-EAD responses in ♀♀ wasps. ► Among peach HIPVs, ethyl octanoate, decanal and 4-decanolide attract ♀♀ wasps. ► Among apple HIPVs, butyl butylate and butyl hexanoate attract ♀♀ wasps.