Resistance to insecticides by the house fly (Musca domesticaL.) and concern for chemical residues in the environment have resulted in increased emphasis on biological control of synanthropic flies. Entomologists in California began a search for indigenous and exotic parasitoids of flies in the early 1960's; Legner and Poorbaugh(1972) reviewed the current developments in biological control of flies and the results of parasite importation and release. Studies of biological control were mainly confined to subtropical regions (i.e., southern California and Florida). However, Mourier (1971) monitored seasonal occurrence of house fly parasitoids in Denmark. Little is known of the parasitoid fauna associated with poultry manure in the southeastern United States although Combs and Hoelscher (1969) reported several parasitoids attacking the horn fly,Haematobia irritans(L.), in Mississippi.