Natural hosts.—Blaberus craniifer, U.S.A. (Roth and Willis, unpublished data, 1953): Possibly Diplocystis sp. (pl. [28], A, B).
Cryptocercus punctulatus, U.S.A. (Cleveland et al., 1934).
Leucophaea maderae, Philippine Islands (Hegner and Chu, 1930): In intestines of host. U.S.A. (Roth and Willis, unpublished data, 1958): Cysts in feces (pl. [28], C).
Gromphadorhina portentosa, U.S.A., in laboratory colony (Roth and Willis, unpublished data, 1958): In intestine of adult female.
Pycnoscelus surinamensis, Hawaii (Schwabe, 1950): A cephaline gregarine was found in the cockroach's digestive tract; it was also claimed to be present in new-born nymphs.
Order COCCIDIA
Family ADELEIDAE
Adelina cryptocerci Yarwood
Natural host.—Cryptocercus punctulatus, U.S.A. (Yarwood, 1937): This intracellular parasite was found in the fat body in light infestations. In heavy infections the coccidia were found in the head, antennae, mouthparts, muscles, legs, salivary glands, nerve cord, as well as fat body. Infection in freshly collected specimens was about 3 percent; when large numbers of cockroaches were kept together in culture, the rate of infection increased because the insects ate their dead companions.
Cleveland et al. (1934) mentioned a coccidium which was sometimes generally distributed through the body (head, legs, antennae, etc.) of C. punctulatus; this parasite was probably the species described by Yarwood.