Blattella germanica and/or Periplaneta americana, South Africa (Porter, 1930).
Periplaneta americana, Indochina (Weill, 1929); Philippine Islands (Hegner and Chu, 1930); U.S.A. (Kudo, 1926b; McAdow, 1931; Armer, 1944).
Cockroach, Venezuela (Tejera, 1926); England or U.S.A.? (Lucas, 1928).
"Küchenschaben," Austria (Bělǎr, 1916).
Found in the host's colon, particularly the anterior portion. L. striata (fig. 2, D) was found in 29 percent of 1,400 B. orientalis and in 2 of 30 P. americana (Kudo, 1926, 1926b). Yakimov and Miller (1922) found the organism in 9.6 percent of 124 specimens of B. orientalis. Zasukhin (1930) found 8.6 percent of over 3,000 B. orientalis infested.
Grassé (1926, 1926a) identified corrugations on the surface of L. striata as a bacterial parasite which he named Fusiformis lophomonadis.
Prolophomonas tocopola Cleveland et al.
Natural host.—Cryptocercus punctulatus, California, Oregon, Virginia, West Virginia (Cleveland et al., 1934): Not abundant.
Family HOPLONYMPHIDAE