Abstract
Adults ofDrino bohemicaMesn., a tachinid parasite, learned to associate the movement of a part of their cage with the presence of host larvae. The parasites became habituated to an artist’s brush. Learning was retained for a period varying from a few hours to a few days. There were differences in the ability of groups of parasites to learn and to retain learning. The ability of the parasite to learn a new clue for use in locating hosts would interact with other factors that influence host-finding and host selection.