434 GEOLOGICAL SURVEY OF THE TERRITORIES. 



it. This is tlie only instance I recollect to have met with an individual 

 of this genus, in any of the Territories, and possibly I may have been 

 mistaken here, but I think I was not. 



LOCUSTIDiE. 



Stenopelmatini. 



Stenopelmatus fasciatus, nov. sp. 



Pale testaceous. Head tawny ; feet pale ; abdomen marked with 

 alternate rings of black and white. 



Head slightly broader than the thorax; occiput evenly rounded and 

 smooth. Pronotum transverse, slightly excavated in front; sides nearly 

 parallel; posterior lateral angles obtusely rounded; posterior margin 

 nearly straight ; a transverse furrow near the anterior margin, and an 

 oblique indenta.tion each side of the faint median line near the middle. 

 Meso- and meta-thorax constricted. Abdomen inflated, as broad or 

 broader than the head, about twice the length of the thorax. Cerci of 

 the male short, slender, and hairy; superanal plate triangular, tumid, 

 emarginate. Ovipositor very short, not longer than the cerci of the 

 male, conical and turned up at the apex. Anterior tibise tvvo-spined 

 beneath, with a third small spine imitiediately above the circlet on the 

 mmv margin; middle tibiaB with two spines on the outer margin, one on 

 the inner, and a small one in the middle near the base ; posterior tibife 

 in the female have five inner and three outer spines, in the male five 

 inner and four outer. Both sexes apterous. 



C'oZor, (after immersion in alcohol, but varying very slightly from the 

 living specimens:) 



Female. — Mandibles black; face yellow; head brownish or tawny; 

 pronotum tawn^', fading to light yellow ; legs, venter, and sternum pale 

 yellow ; spines tipped with piceous. Each abdominal segment has a 

 broad ring or band of black on the anterior or middle jiortion, and a 

 narrow band of pale yellow on the posterior margin; sometimes the lat- 

 ter extends across the suture upon the margin of the next segment. 



Alale. — Mandibles tipped v/ith black ; labrum fuscous; head and thorax 

 paler than in the female ; apex of the tibife dusky. Dark bands of the 

 iibdomen grow narrower on the apical segments. 



Dimensions. — 9 ^, length, 1.23 inches; posterior femora, .38 inch; 

 posterior tibias, .37 inch. I have a specimen from Texas, a female, 

 which measures 1.65 inches in length, but the above measurements 

 give the average of the western specimens. 



Rahitat. — Wyoming, Utah, Southern Idaho, and Texas. Eare, never 

 being found in great numbers at any point. 



This species, though not exactly agreeing with Group II of Walker, 

 (Cat. Dermap. Salt., Supp. to pt. I, p. 197,) is closely allied to his 8. 

 zonatus. 



Eaphidophoeini. 



€eutlw2)Mlus 2mllidt(S, Jiov. S]y. 



Pale testaceous ; with four strong spines on each superior marginvOf 

 the posterior tibiae. 



Female. — Second joint of the antennae enlarged at the apex ; anterior 

 femora with two (sometimes three) spines beneath, near the apex, the 

 one next the apex being much the largest ; middle femora with one or 

 two spines beneath, and one on the inside of the apex ; posterior fe- 

 mora unarmed ; the four anterior tibiae generally have two spines in 



