The Biotic Associations of Cockroaches

by Louis M. Roth; Edwin R. Willis

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.

Endolimax nana (Wenyon and O'Connor)?

Synonymy.—Entamoeba nana.

Natural host.—Blaberus atropos, Venezuela (Tejera, 1926): A small amoeba greatly resembling E. nana was found in the intestinal contents of the cockroach. In inoculations this amoeba was not pathogenic.

Endolimax sp.

Natural hosts.—Blatta orientalis, U.S.S.R. (Zasukhin, 1930): This organism was found in the hind gut of 0.3 percent of over 3,000 cockroaches examined.