Stylogaster spp.
Hosts.—Chorisoneura sp., Brazil (Souza Lopes, 1937): An adult specimen was found in a museum collection with an egg of Stylogaster attached to the posterior end of its abdomen.
Cockroaches, Panama (C.W. Rettenmeyer, personal communication, 1959): "Seven species were collected hovering over army ant swarms and a few flies were seen apparently attacking cockroaches that had been flushed by the ants."
Family LARVAEVORIDAE
Calodexia (?) venteris Curran
Hosts.—Periplaneta americana, Brazil (Souza Lopes, 1937): Obtained complete evolution of the parasite in this host. This may have been an experimental host.
Calodexia spp.
Hosts.—Cockroaches, Panama (Rettenmeyer, personal communication, 1959): Swarms of army ants are accompanied by about 20 species of Calodexia. These flies larviposit on the cockroaches, crickets, and possibly other arthropods that are flushed from cover by the ants. Larvae were found in one(?) cockroach. Larvae from an adult of Calodexia were introduced experimentally into a cockroach and successfully reared.
Undetermined tachinids
Hosts.—Eurycotis floridana, from Florida (Roth, unpublished data, 1953): Three larvae (det. by W.W. Wirth) were found in a living adult male.