Parasitoid that just emerged from one of the cocoons constructed on the outside of a hornworm host. Many parasitoid larvae fed inside the worm, exited the body through the integument, and spun cylindrical silken cocoons in which they pupated. Interestingly, most of the adult parasitoids emerge about the same time. The adults chew a ring around the top of the cocoon forming a loose cap that allows them to crawl out. Note the three cocoons with wasps just starting to emerge. These wasps are excellent biological control agents and can be purchased from insectaries that raise them by the millions.