Abstract
Reports in the literature on the activities of adults of the cabbage maggot, Hylemya brassicae (Bouché), are scanty, sometimes not in agreement with one another, and usually recorded in conjunction with observations on field ecology. Now that individual insects are being used in studies of resistance in rutabagas (Swailes, 1960) a more detailed account of activities after adult emergence is available. This paper deals with the pre-oviposition, mating, and oviposition 'behaviour of the females and mating behaviour of the males.