180 ILLINOIS BIOLOGICAL MONOGRAPHS [390 



Taken at Swarthxnore, Pa. Host: Lucanus dama Thunb. Habitat: 

 Intestine. 



Ellis (1913a:264) says: 



"This species is referred to the genus Euspora because of the shape of the 

 sporont and the coleopteran host, making the generic determination very uncer- 

 tain." 



The original description gives no evidence that the species is a member 

 of the genus Euspora. The protomerite is not spherical and does not 

 contain the conoidal, less dense area in its anterior third, and the spores 

 are not known and cannot be verified with those of the genus Euspora. 

 The fact that the host is a beetle is of significance since the Eusporae 

 and the Gregarinae are both found in beetles. 



I have placed the species in the genus Gregarina because it is asso- 

 ciative and does not have characteristics of the other associative genera. 



GREGARINA CAVALIERINA Blanchard 

 1905 Gregarina cavalierina Blanchard 1905 :926-8 



Gregarina: Sporonts biassociative, the couple attaining a total 

 length of 1500 to 2000/*. Length primite 500 to 1000/t, width 80 to 100/u. 

 Ratio length protomerite : total length primite : : 1 : 15 ; width proto- 

 merite : width deutomerite? Protomerite flattened, ellipsoidal, longi- 

 tudinal axis perpendicular to that of deutomerite. Deutomerite cylin- 

 drical, rounded hemispherically at posterior end. Endocyte yellow in 

 protomerite, darker in deutomerite. Nucleus spherical, 27/* in diameter, 

 one karyosome. 



Cysts spherical, 400/x in diameter, dehiscing by spore ducts 200/i 

 long, 40;u, wide at base and 15/* wide at end. Spores extruded in chains. 

 Spores ellipsoidal, 8 by 6/t. 



Taken in the mountains of Maure, France. Host: Dendarus (Pan- 

 darus) tristis Rossi (=coarcticollis Mis.). Habitat: Intestine. 



GREGARINA SOCIALIS Leger 



1906 Gregarina socialis Leger 1906:323-7 



1911 Gregarina socialis Sokolow 1911:279 



Sokolow gives the reference to the original paper by Leger as Arch. 

 Prot. 7 :106-30, but this reference is incorrect. The brief description and 

 text figure are buried in a paper on another species and are not indexed. 



