GREGARINIDA 



301 



Ophryocystis mesnili Leger (Fig. 127, a). In the mealworm, 

 Tenehrio molitor. 



Genus Lipotropha Keilin, Schizogonic and sporogonic stages 

 intracellular. The oocyst contains sixteen spores, each possessing 

 eight sporozoites. In the fat body of Systenus larvae. One 

 species. 



Lipotropha niacrospora Keilin (Fig. 127, b, c). The spore 

 measures about 13.5 microns by 3 microns. 



iMg. 127 



a. A.sporn\2L.t\ngsta.gQoi Ophryocystis mesnili. XlOOO. (After Leger). 



b, c. Spores of Lipotropha macrospora. X600 (After Keilin). 



d, e. Caulleryella pipientis. (After Buschkiel). d, a spore (X900); 

 e, section of gut of Culex pipiens, showing the trophozoites 

 (X150). 



Genus Caulleryella Keilin. Schizogony into 16 schizonts. 

 Each gametocyte gives rise to 8 gametes, and hence 8 zygotes 

 The spore contains 8 sporozoites. Parasitic in the intestine of 

 dipterous larvae. 



Caulleryella pipientis Buschkiel (Fig. 121 , d, e). In the gut 

 of Culex pipiens. 



References 



DoFLEiN, F. AND E. Reichenow. 1929 Lehrbuch der Pro- 



tozoenkunde. Jena. 

 Hesse, E. 1909 Contribution a I'etude des Monocystidees 



des Oligochetes. Arch. Zool. Exper,, T. 3. 

 Watson Kamm, Minnie. 1916, 1922 Studies on gregarines. 



I. II. Illinois Biological Monogr., Vols. 2 and 7. 



