* Bacillus subtilis Cohn emend. Prazmowski
Natural vectors.—Blaberus craniifer, U.S.A. (Wedberg et al., 1949).
Blatta orientalis, Italy (Cao, 1898, 1906; Spinelli and Reitano, 1932); France (Sartory and Clerc, 1908); Poland (Nicewicz et al., 1946).
Cryptocercus punctulatus, U.S.A. (Hatcher, 1939).
Periplaneta americana? ("Blatella americana"), England (Shrewsbury and Barson, 1948).
Cockroaches, U.S.A. (Longfellow, 1913).
Experimental vectors.—Blatta orientalis, Italy (Cao, 1898, 1906).