FURTHER RESEARCHES ON NORTH AMERICAN ACRIDIID^. 37 



Spharagemon bolli Scudder. 



Georgia: Sand Mountain. 



Alabama: Cheaha Mountain; Lookout Mountain; Turnipseed's Ranch. 



Mississippi : Meridian. 



Arkansas: Ashdown; Blue Mountain Station; DeQueen; Eagleton; Fay- 



etteville ; Magazine Mountain ; Mena ; Ola ; Rich Mountain ; Rich 



Mountain Station ; Winslow. 

 Indian Territory: Caddo; Haileyville ; Howe. 

 Texas: Bonita ; Denison. 

 Oklahoma: Mount Sheridan, at base and near summit, among woods. 



This species is one of the few sylvan geophilous locusts, its dis- 

 tribution coinciding with that of dry woodlands, in which it is usually 

 associated, in the region under discussion, with Melanoplus keeleri and 

 robustus or their varieties. In the Northern States it frequents sandy 

 old fields as well as the more open woods and forest paths and mar- 

 gins. It is very widely and generally distributed in suitable localities 

 throughout its range, never becoming abundant, even locally. 



Spharagemon cristatum Scudder. 



Texas: Bonita; Clarendon; Quanah ; Wichita Falls. 

 Oklahoma: Cache; Mountain Park; Shawnee. 



This is a characteristic ammophilous species whose distribution 

 seems to be controlled by, or at least coincident with, the presence of 

 areas of loose sand or very light soil. In favorable spots it is plenti- 

 ful and easily secured. 



Scirtetica picta Scudder. 

 Mississippi: Gulf port. 



Common along the upper part of the sea-beach and on open sandy 

 spots not far inland. In the specimens secured the dusky wing-bands 

 are narrower than in typical picta. 



TRACHYRHACHIS (MESTOBREGMA). 



Reference has been made in the introductory pages to the variation 

 presented by the material secured in this genus, representing four or 

 more so-called species varying in wing-coloration geographically and 

 presenting a complete gradation from a wing with hyaline base and 

 vitreous apex to one with bright lemon-yellow disk, crossed by a 

 broad fuscous band. 



Trachyrhachis thomasi Caudell. 



Arkansas: Fayetteville ; Van Buren. 

 Indian Territory: Caddo; Haileyville; Howe. 

 Texas: Denison; Quanah; Wichita Falls. 

 Oklahoma: Base of Mt. Sheridan. 



