15 



C. occipitalis, but differ as follows: the front marg-in of the scutel- 

 luni of the vertex is farther removed from the apex and external 

 marg-in of the vertex, being- nearer a line drawn at the level of the 

 front marg-in of the eyes than to the apex of the vertex — in occipi- 

 talis the reverse is true, — and the fuscous stripe on the dorsal part 

 of the outer face of the hind femora is broken up into narrow trans- 

 verse fasciae. The name Cokdillacris has been proposed by Rehn 

 (Can. ent., vol. 33, p. 271) to replace Ai^pha (Brunner, Rev. syst. 

 orth., p. 121, 1893) which is preoccupied in Hj'menoptera. 



Stenobothrus acutus, sp. nov. 



Five males, Ormsby Co., Nev., July 6. Closely allied to St. 

 cnrtipennis but differing- in having the vertex more produced and 

 the ang-le of its sides more acute; the facial costa is also wider and 

 scarcely or not at all narrowed opposite the median ocellus. The 

 lateral foveolae are deep and very distinct, and the antennae aver- 

 age shorter (in the specimens seen). Possibl}' it is but a geograpi- 

 cal race but in either case it seems worthy of a name. 



Antenna, 8.5-9.5; hind fern.: 11-12; tegmina: 10-12; total length: 

 16-17.5 mm. The tegmina equal the abdomen. 



Hesperotettix nevadensis, sp. nov. 



Three males, three females, Ormsby Co., Nev., Jul}' b. Ver}' 

 similar to //. brcvipcnnis, the female somewhat smaller, differing 

 in ornamentation and slightly in structure, the vertex being a ver}- 

 little narrower between the eyes, and the tegmina relatively shorter, 

 especially in the male. The tegmina in both sexes are about one 

 and one-third times as long as the exposed portion of the abdomen 

 (in brevipetiuis nearl}' or quite covering abdomen, particularh^ in 

 male). General color pea-green, ranging (in male at least) to rusty 

 brown, and varied with pale yellosv stripes on mid-carina and on 

 anterior portion of lateral carinae of pronotum, on meso- and me- 

 tapleura, lower margin of genae, lower margin of outer face of 

 hind femora, and on the veins of the teg-mina, especially the poste. 

 rior ulnar. Hind femora with ferruginous annulus above knee, in 

 brown male showing indications of two obliquely transverse fus- 

 cous fasciae. Hind tibiae bluish green, paler at tip. Fuscous mark- 

 ing and cloudings are also present in var3ang degree on the lateral 

 lobes of the pronotum and along the margins of the median dorsal 

 pale stripe, on the vertex and occiput, the meso- and metapleui-a, 

 and the geniculati«ns of the hind femora. The anterior and middle 

 femora are ferruginous. 



Antenna: male, 7; female. 7; hind fem: male, 9; female, 11.5- 

 12.5; tegmina: male, 6.3-6.7; female, 8.5-9; total length: male, 16; 

 female, 21 mm. 



BkadynoteS compacta, sp. nov. 



Four males, four females, Ormsby Co., Nev., July 6. 



Nearly allied to B. ohcsa, diff'ering from that species in its 

 smaller si'/.e. the structure of the pronotum. the less upturned end 



