Stock photography, photos: Parasitic ichneumon wasp emerging f Stock photos of Ichneumon wasp Ichneumon troisis pennator emerging from the chrysalis of a black swallowtail butterfly papilio polyxenes asterius. Parasitic insect Note emergence hole in pupal case Photograph: © John T. Fowler Click for a larger image and more information Keywords associated with this stock photo: butterfly, hymenoptera, predatory, predacious, predator, chrysalis, emergence, emerging, color, colour, troisis, pennator, crysalis, wasp, chrysalid, black swallowtail, insect, parasite, pupal case