Order HAPLOSPORIDIA
Haplosporidium periplanetae Georgévitch
Natural host.—Blatta orientalis, Yugoslavia (Georgévitch, 1953): This organism was described from the malpighian tubules of the cockroach where it apparently occurred in a mixed infection with the microsporidian Plistophora periplanetae. See synonymy under Plistophora periplanetae.
Coelosporidium periplanetae (Lutz and Splendore)
Synonymy.—Nosema periplanetae, Coelosporidium blattellae, Bertramia blatellae [after Semans, 1943]. Some of the observations cited under Plistophora periplanetae may pertain to C. periplanetae (see Sprague, 1940). See also Haplosporidium periplanetae.
Natural hosts.—Blatta orientalis, U.S.S.R. (Epshtein, 1911); U.S.A. (Kudo, 1922; Sprague, 1940); Yugoslavia (Ivanić, 1926).
Blattella germanica, U.S.A. (Crawley, 1905); Germany (Wellmer, 1910, 1911).
Periplaneta americana, Brazil (Lutz and Splendore, 1903).
This organism (fig. 2, B) passes its life cycle living free in the lumina of the malpighian tubules of cockroaches. The elongate trophozoite is firmly attached to the wall of the tubule as are clusters of immature spores. Mature spores are freed into the lumina of the tubules from whence they pass to the exterior. Sprague (1940) examined about 200 wild-caught B. orientalis and found them to be practically 100 percent infected.
Order MICROSPORIDIA