333] STUDIES ON GREGARINES— WATSON 123 



HIRMOCYSTIS GRYLLOTALPAE (Leger) Labbe 



[Figure 211] 



1892 Eirmocystis gryllotalpae Leger 1892 :112 



1899 Hirmocystis gryllotalpae Labbe 1899:13 



Hirmoeystis : Sporonts in associations of two or three. Length of 

 sporonts 80 - 90;tt. Protomerite subspherical. Cysts spherical, 60/x in 

 diameter. Spores elongate ovoidal, 5 by 2.1/x. 



Taken at Poitou, France. Host: Gryllotalpa gryllotalpa (L.) (G. 

 vulgaris). Habitat: Intestine. 



Leger and Labbe include here, as a synonym, Gregarina sphaeru- 

 losa Dufour (1837:12), probably on the strength of the fact that the 

 latter was found in the same host genus. 



At the end of the chapter on Orthoptera will be found a statement 

 that Dufour 's G. sphaerulosa was described from cysts instead of from 

 sporonts. Dufour did not know the mode of reproduction of the little 

 animals he had discovered a few years previous and looked upon the 

 white spherules as a new species. It is interesting to note that he dis- 

 covered cysts from two unallied hosts and he found enough difference 

 between the cysts to designate them as two separate species. 



PILEOCEPIIALUS BLABERAE (Frenzel) Labbe 



[Figures 202, 203] 



1892 Gregarina hlaherae 

 1899 Pileocephalus hlaherae 

 1913 Gregarina hlaherae 



Pileocephalus : Sporonts solitary, rather stout-bodied. Length of 

 sporonts 500/t, width 150/x. Ratio length protomerite : total length spo- 

 ront : : 1 : 5 ; width protomerite : width deutomerite : 1 1.6. Proto- 

 merite hemispherical to subglobular, 1.4 times as wide as high, very 

 deeply constricted at septum. Deutomerite ovoidal, widest through cen- 

 tral portion or just in front thereof, rounded at posterior end. Nucleus 

 spherical, with one karyosome. Epimerite long, cordiform, dilated at 

 base into a flattened sphere which is over half the width of the proto- 

 merite in its width. Epimerite equal in length to half the whole 

 cephalont length (without the epimerite). 



Cyst and spores not known. 



Taken at Cordoba, Argentina. Hosts: Blahera claraziana Sauss. 

 and related species. Habitat : Intestine. 



