73] STUDIES ON GREGARJNES—KAMM 73 



Unnamed Species Keilin 



1918 Unnamed species Keilin 1918: 406 



Intestine of Oecophora pseudospretella Stain, and Tinea pallescentella 

 Stain. 



Taken at Cambridge, England. 



"Very similar to species here described," above, but a complete life- 

 cycle was not procured, and the specimens left unnamed. 



LIST OF SPECIES FOUND IN THE ORDER DIPTERA OF THE CLASS 



HEXAPODA 

 Paiiasite Host 



gkegasinidae 



Gregarina longa (Lfiger) Labb6 Tiptda sp., larva 



Gregarina cienocephalus Ross Cietwcephalus serraiiceps 



Hirmocysiis venlricosa (L^ger) Labb6 Tipula oleracea, larv. 



Type species 

 Hirmocysiis polymer pha (L^ger) Labb^ Limnobia sp., krv 



Systenocerus caraboides L., larv. 



ACTINOCEPHAIIDAE 



Actinocephalus tipulae (Hammerschmidt) Tipula oleracea L., larv. 



L^ger Pachyrhina pratensis L., larv. 



Actinocephalus sp. L^ger CienopJtora sp., larv. 



Schneideria caudata (von Siebold) L^ger Sciara nilidicoUis Meig. larv. 



Schneideria mucronata lAgti Type species Bibio marci (L.), larv. 



Schneideria sp. Chironomus sp., larv. 



Siylocystis praecox lAgei Type species T any pus sp., larv. 



Taeniocystis mira L^ger Type species Ceratopogon solslitialis Winn., larv. 



Pileocephalus striatus L^ger and Duboscq Ptychopicra contaminaia, larv. 



Family GREGARINIDAE Labbe 1899: 9 

 Genus GREGARINA Dufour 1828 

 GREGARINA LONGA (Leger) Labbe 

 [Figure 7] 

 1892 Clepsidrina longa Leger 1892: 117 



1899 Gregarina longa Labbe 1899: 11 



1903 Gregarina longa Minchin 1903: 337 



1911 Gregarina longa Wellmer 1911: 114 



Sporonts in pairs, very slender and elongate. Maximum length of 

 sporont 500;ii. Width not given. Ratio LP:TL: :1: 10 to 12; WP:WD: : 

 1:1.2. Another form is found in which this ratio exists: LP:TL: :1:7, 

 body less slender. Protomerite of primite well-rounded, deeply con- 

 stricted at septum. Protomerite of satellite flattened at top, constricted 

 in middle. Deutomerite regularly cylindrical, of approximately same 

 width throughout in primite and tapering very slightly in satellite, ending 

 in a broad blunt extremity. Epimerite a simple spherical papilla. Nucleus 

 large, spherical, with one large karyosome. 



