396 



PROCEEDINGS OF THE ACADEMY OF 



[Sept, 



from the type locality and date but taken on geyser formation at the 

 upper end of the springs, one male from the immediate vicinity of the 

 Hot Springs, August 5, another male from the summit of the first foot- 

 hill of the Gallatin Range at the type locality, August 5, and one 



Fig. 13. — Circotettix rabula n. sp. Mammoth Hot Springs, Yellowstone Park. 

 Lateral view of female type. (X 3.) 



female from Spire Rock, Montana, August 12. These specimens vary 

 slightly in the strength of the tegminal bars, which are partially solid 



in some specimens, but all other 

 characters appear to agree well 

 with the types. 



Two males and two females 

 received from Prof. Gillette and 

 labelled C. verruculatus are ref- 

 erable to this new form. They 

 are from Dutch George's and 

 Virginia Dale, Larimer Co., 

 Colorado. 



This species was by no means 

 plentiful about the Hot Springs 

 and much time was occupied in collecting the ten specimens. The insects 

 are most swift and shy, so that great difficulty was experienced in 



Fig. 14. — Circotettix rabula n. sp. 

 (X2.) 



Wing. 



