184 SMITHSONIAN MISCELLANEOUS COLLECTIONS VOL. I4I 



Gregarina thomasi Semans 



Natural host. — Parcohlatta pensylvanica, U.S.A., Ohio (Semans, 

 1939) : Enteric caeca and midgut. 



Protomagalhaesia serpentula (de Magalhaes) 

 Synonymy. — Gregarina serpentula [Pinto, 1918a, 1919; Semans, 



1943]- 



Natural host. — Periplaneta americana, Brazil (Magalhaes, 1900) : 

 In the coelom and alimentary canal. The host of this parasite (fig. 2, 

 K) was incorrectly cited as Blatta orientalis by Watson (1916). 



Gamocystis tenax Schneider 



(Fig. 2, L) 



Natural hosts. — Ectobius lapponicus, France (Schneider, 1875) ; 

 Germany (Wellmer, 191 o, 1911; Foerster, 1938). 



Ectobius pallidus, Germany (Foerster, 1938) : In intestine. 



Family ACTINOCEPHALIDAE 



Pileocephalus blaberae (Frenzel) 



Synonymy. — Gregarina blaberae [Watson, 1916]. 

 Natural hosts. — Blaptica dubia and related forms, Argentina 

 (Frenzel, 1892) : In midgut. 



Unidentified Gregarinida 



Natural hosts. — Blaberus craniifer, U.S.A. (Roth and Willis, un- 

 published data, 1953) : Possibly Diplocystis sp. (pi. 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 U.S.A. (Roth and Willis, unpublished data, 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 (pi. 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 and Willis, unpublished data, 1958) : In intestine of adult female.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 



