Synonymy.—Octomitus periplanetae Bĕlăr [Kudo, 1954].
Natural hosts.—Blatta orientalis, U.S.S.R. (Zasukhin, 1930): Organism is found in the hind gut. Eighty-five percent of over 3,000 B. orientalis contained this organism.
Periplaneta americana, Philippine Islands (Hegner and Chu, 1930).
"Küchenschaben," Austria (Bĕlăr, 1916).
Hexamita sp.?
Natural host.—Leucophaea maderae, Philippine Islands (Hegner and Chu, 1930): The flagellates were present in large numbers.
* Giardia intestinalis (Lambl)
Experimental vectors.—Blatta orientalis, South Africa (Porter, 1918).
Blattella germanica, Brazil (Pessôa and Corrêa, 1927).
Eurycotis floridana, U.S.A. (Young, 1937).