FURTHER RESEARCHES ON NORTH AMERICAN ACRIDIID^. 29 



Eritettix carinatus Scudder. 

 Georgia: Sand Mountain. 

 Alabama: (Lookout Mountain, juv. 2); (Valley Head, juv. 2). 



A single adult male and three nymphs in the second stage of 

 development were the only specimens secured. 



Eritcttix sp. 



Texas: (Clarendon, juv. 3). 



A single specimen resembling the preceding species, but probably 

 different. 



Eritcttix sp. 



Texas: (Quanah, juv. 4). 

 One specimen, not identifiable specifically. 



Amphitornus bicolor Thomas. 



Texas: Amarillo; (Clarendon, juv. 3; (Quanah, juv. 4). 

 Oklahoma: Cache, Mountain Park. 



One male and four females were taken, chiefly among mesquite 

 grass, in company with Opeia obscura. 



Opeia obscura Thomas. 



Texas: Amarillo (juv. 5); Clarendon; Denison (juv. 5); Quanah; Wichita 



Falls (juv. 5). 

 Oklahoma: Cache; Mountain Park; base of Mount Sheridan. 



In the drier parts of the prairie region and on the plains this 

 species is common, even abundant locally, among the mesquite grass 

 and other low herbage, particularly about the bare places surrounding 

 the nests of the harvesting-ants. In color and form it so strongly 

 resembles, the male especially, the scattered glumes of grasses and 

 other d6bris of sweeping as to be overlooked readily by the collector, 

 even when in the net. 



Amblytropidia occidcntalis Saussure. 

 Alabama: (Anniston). 



Mississippi: (Biloxi; Gulfport; Meridian; Nugent). 

 Arkansas: (Blue Mountain Station; DeQueen; Eagleton; Mena). 

 Indian Territory: (Caddo; Haileyville; Howe; South McAlester). 

 Texas: (Bonita; Denison). 



This locust is represented entirely by immature examples, ranging 

 in development from the second stage, at Anniston, July i2th, to the 

 fifth stage at Blue Mountain Station on August 28th. It is widely 

 distributed, and common locally. The adults frequent open forests 

 and are plentiful in the autumn and winter. 



