1906.] NATURAL SCIENCES OF PHILADELPHIA. 361 



Grand Canon much resembled that about Yellowstone Lake, but 

 Orthoptera were less abundant. As in other parts of the Park, very 

 few specimens could be found in the woods, 



Utah. 



Vicinity of Salt Lake City, Salt Lake Co., elevation 4,230-6,000 feet. 

 About Salt Lake City I found the vicinity of Eixsign Peak (top 6,000 

 feet elevation) by far the most productive collecting groimd. There 

 the soil was dry and gravelly, but covered with a somewhat sturdy 

 growth of sage-brush and other desert plants. In this place Orthoptera 

 swarmed and great difficulty was experienced in following scarce 

 specimens among the legions of less desirable ones. About the foot 

 of the hill was the most productive situations, but great numbers were 

 found both on the hillside and at the top. 



In a dry field of cut alfalfa some miles south of the city (elevation 

 4,230 feet) collecting was profitable among the stubble, although both 

 there and in the surrounding countiy far fewer species were to be 

 found than w^as expected and nothing of the variety found in the more 

 barren region about Ensign Peak. 



Colorado. 



Grand Junction, Mesa Co., elevation 4,573 feet. In the dry sandy 

 country at this locality quite good collecting was found, though recent 

 freshets had washed over much of the groimd, and the only vegetation 

 in most places consisted of tall scraggy bushes. 



Antlers, Garfield Co., elevation 5,310 feet. An area of cactus and 

 sage at this locality proved very productive in the few minutes spent 

 there. 



Debeque, ]\Iesa Co., elevation 4,935 feet, and Newcastle, Garfield Co., 

 elevation 5,552 feet. Both localities in the rather arid canon of the 

 Grand River. 



Vicinity of Colorado Springs, El Paso Co. To the east of the city in 

 the prairie (elevation about 6,000 feet) Orthoptera w'ere present in 

 countless numbers. The true prairie-grass land revealed many species, 

 while the more luxuriant grass about a small stagnant pond produced 

 other species. This locality, while somew^hat dry, was nothing like the 

 parched sage-brush plains in which collecting was done at other places. 

 Austin Bluffs (elevation 6,960 feet) rise abruptlj^ from the prairie land, 

 many dry shrubs growing upon them, plentifully interspersed with 

 scrub pines. 



Vicinity of Manitou, El Paso Co. The mesa (elevation 6,400 feet) 



