Experimental prey.—Blattella germanica, Kenya Colony (Someren, 1924).
Order DIPTERA
From the few observations that have come to our attention, it seems that flies are comparatively rare parasites in cockroaches.
Family PHORIDAE
Megaselia sp.
Host.—Eggs of Parcoblatta sp., Ohio (Edmunds, 1952a).
Family CONOPIDAE
Stylogaster stylata (Fabricius)
Hosts.—Cockroaches, Brazil (Souza Lopes, 1937): L. Travassos was quoted as having observed this species pursue cockroaches that were escaping columns of the army ant Eciton sp. Souza Lopes (1937) stated that the female deposits eggs on the cuticle of the host near the end of the body; the egg is barely inserted and two recurrent hooks prevent it from falling off. Souza Lopes (1937) also observed other species of Stylogaster pursue Orthoptera, but he was unable to devote proper attention to the behavior of the flies.