Natural host.—Cryptocercus punctulatus, U.S.A., Appalachian area (Cleveland et al., 1934).
Leptospironympha rudis Cleveland et al.
Natural host.—Cryptocercus punctulatus, U.S.A., Appalachian area (Cleveland et al., 1934).
Leptospironympha wachula Cleveland et al.
Natural host.—Cryptocercus punctulatus, U.S.A., Appalachian area (Cleveland et al., 1934).
Macrospironympha xylopletha Cleveland et al.
Natural host.—Cryptocercus punctulatus, U.S.A., Appalachian area (Cleveland et al., 1934).
Family LOPHOMONADIDAE
Lophomonas blattarum Stein
Natural hosts.—Blatta orientalis, Czechoslovakia (Stein, 1860); Germany (Bütschli, 1878; Schubotz, 1905; Chen, 1933); U.S.A. (Leidy, 1879a; Kudo, 1922, 1925, 1926, 1926b; McAdow, 1931); Europe (Janicki, 1908); U.S.S.R. (Yakimov and Miller, 1922; Zasukhin, 1930); Poland (Lorenc, 1939).