360 PROCEEDINGS OF THE ACADEMY OF [Sept., 



of aspen, I found species which did not seem present in the surrounding 

 sections, among which were Hippiscus maculatus, Circotettix rabula, 

 Bradynotes ohesa and Mdanoplus alpinus. 



At the head of the hot springs I found a plot of marsh grass among 

 the stunted pines which revealed several species of crickets and other 

 Orthopterous insects not found in the surrounding country. On the 

 summits of the higher foothills nearby an even greater variety of the 

 more interesting forms were found. 



Apollinaris Spring, elevation 7,250 feet. iMaterial collected here 

 was from dense pine woods. 



Fountain, Lower Geyser Basin, elevation 7,230 feet. Very few 

 specimens could be found here, the pine woods nearby revealing 

 nothing whatever, while but very few individuals were taken on the 

 geyser formation and in the short grass near the hotel. This was the 

 most unfavorable locality found in the Park. 



Old Faithftd Inn, Upper Geyser Basin, elevation 7,830 feet. Here 

 two distinct collecting localities were accessible in which few though 

 interesting forms were found. Between Old Faithful geyser and the 

 Firehole river a space of short grass contained numerous Arphia 

 pseudonietana, while on the surrounding geyser formations the same 

 species could be found in very small numbers. Back of the Inn, among 

 the short but thickly-growing pines, several species of Melanoplus 

 {M. hruneri and fasciatus) were found which were not met with else- 

 where in the Park. Unlike most of the Yellowstone localities, long and 

 diligent search was required to secure each specimen. 



Norris Pass, Continental Divide, elevation 8,240-8,320 feet. About 

 the Norris Pass the vegetation was scanty owing to the elevation. In 

 the more open spaces a short grass grew plentifully and several species 

 of Orthoptera could have been taken in numbers had time permitted. 



The Thumb, Yellowstone Lake. About The Thumb on the shore of 

 Yellowstone Lake the vegetation was heavy, but owing to the few 

 cleared spaces but few Orthoptera were found. 



Exit of the Yellowstone River, elevation 7,742 feet. At this point 

 above the high abrupt bank on the left side is a large treeless expanse 

 covered by high plants and shrubs. In this location all forms of insect 

 life were very plentiful, and many varieties of boreal Lepidoptera were 

 noticed. The Orthoptera of this section differed materially from 

 that found in the more arid geyser regions. 



Mud Volcano, elevation 7,740 feet. CoUecting here was done on 

 sandy soil. 



Near Grand Canon, elevation 8,000 feet. The country about the 



