1 9C 3] MORSE : — NEW OR Til OP TERA FR OM NE VADA I I ^ 



NEW ORTHOPTERA FROM NEVADA. 



BY ALBERT P. MORSE, WELLESLEY, MASS. 



Among a small lot of Orthoptera collected in Nevada by Mr. C. F. Baker I 

 find four new species, as follows : — 



CORDILLACRIS AFFINIS, Sp. nOV. 



One male, five females, Ormsby Co., Nev., July 6. These specimens agree in 

 size, general form, proportions, and markings with C. occipitalis^ but differ as fol- 

 lows : the front margin of the scutellum of the vertex is farther removed from the 

 apex and external margin of the vertex, being nearer a line drawn at the level of 

 the front margin of the eyes than to the apex of the vertex — in occipitalis 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 transverse fasciae. The name Cordillacris 

 has been proposed by Rehn (Can. ent., vol. ^t,, p. 271) to replace Alpha (Brunner 

 Rev. syst. orth., p. 121, 1893) which is preoccupied in Hymenoptera. 



Stenobothrus acutus, sp. nov. 



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

 differing in having the vertex more produced and the angle 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 

 average shorter (in the specimens seen). Possibly it is but a geographical race 

 but in either case it seems worthy of a name. 



Antenna: 8.5-9.5; hind fem. : 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., July 6. Very similar to 

 H. brevipennis, the female somewhat smaller, differing in ornamentation and 

 slightly in structure, the vertex being a very 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 brevipcnnis nearly or quite covering abdomen, particularly in male). 

 General color pea-green, ranging (in male at least) to rusty brown, and varied with 

 pale yellow stripes on mid-carina and on anterior portion of lateral carinae of pro- 

 notum, on meso- and metapleura, lower margin of genae, lower margin of outer 

 face of hind femora, and on the veins of the tegmina especially the posterior ulnar. 

 Hind femora with ferruginous annulus above knee, in brown male showing indica- 

 tions of two obliquely transverse fuscous fasciae. Hind tibiae bluish green, paler 



