Distribution.—Probably worldwide. Eastern and southern U.S.A.; Central and South America; Europe; Arabia; Africa; India; Formosa; Hawaii.
Tetrastichus periplanetae Crawford
Natural hosts.—Periplaneta americana, Mozambique (Crawford, 1910); Union of South Africa (parasites reared from oöthecae collected in Durban, Natal, by the City Health Department): The parasites were identified by Burks (personal communication, 1956). Jamaica (Gowdey, 1925); Réunion Island (Bordage, 1913).
"Domestic cockroach," Puerto Rico (Wolcott, 1951).
Tetrastichus sp. I
Taxonomy.—Burks (personal communication, 1956) stated that this species (specimens of which are in the U.S. National Museum) is very close to T. hagenowii.
Natural hosts.—Periplaneta americana, Union of South Africa (parasites reared from oöthecae collected in Durban, Natal, by the City Health Department [Burks, p. c., 1956]).
Periplaneta australasiae, Manila, Philippine Islands (Burks, p. c., 1956).