Endolimax blattae Lucas
Natural hosts.—Blatta orientalis, England (Lucas, 1927, 1927a); U.S.S.R. (Zasukhin, 1930); Germany (Chen, 1933).
Periplaneta americana, England (Lucas, 1927, 1927a); Indochina (Weill, 1929); U.S.A. (Armer, 1944).
Periplaneta australasiae, U.S.A. (Steinhaus, 1946).
Organism is found in the hind gut of the cockroach. Zasukhin (1930) found 3-percent infestation in over 3,000 B. orientalis examined.