The responses of the gypsy moth, Porthetria dispar (L.), (Lepidoptera: Lymantriidae); of an egg parasitoid of the gypsy moth, Ooencyrtus kuwanai (Howard) (Hymenoptera: Encyrtidae); and a parasitoid of the larvae of noctuids, Apanteles laeviceps Ashmead (Hymenoptera : Braconidae); to differently colored surfaces in the field were investigated by hanging Stikem®-coated panels (white, yellow, red, blue, black, clear Plexiglas®, and aluminum) in 2 sites in Stonington, Connecticut, in the summer of 1971. Numbers of insects caught varied according to species and date as well as color. O. kuwanai was attracted mainly to white and blue panels, A. laeviceps to clear Plexiglas panels, and gypsy moth males to red, blue, and black panels. The results are discussed as they relate to orientation in these organisms.