Blattella germanica, on shipboard (Morrell, 1911).
Periplaneta americana, Gold Coast Colony (Macfie, 1922).
Cockroaches, Venezuela (Tejera, 1926); U.S.A. (Read, 1933).
* Mycobacterium spp.
Natural vectors.—Periplaneta americana, U.S.A. (Leibovitz, 1951; Micks in Roth and Willis, 1957a).
Family ACTINOMYCETACEAE
* Nocardia sp.?
Natural vectors.—Periplaneta americana, U.S.A. (Leibovitz, 1951).
Family STREPTOMYCETACEAE