262 



tion of which is insiifficieut. They differ from the description in the 

 comparative length of the tegmina and hind femora, and in the color of 

 the latter. In these specimens, they measure as follows: tegmina, S 



HESPEKOTETTIX nov. gen. {ia-spoq, rim^). 



Allied to Pezotettix and Caloptenus. Head not very prominent ; ver- 

 tex very narrow between the eyes, with a slight median pit ; the fasti- 

 ginm broadening considerably in front, declivant, shallowly sulcate in 

 the middle, the sides rounded; front straight, a little ( $ ) or consider- 

 ably (<?) oblique; the frontal costa equal, scarcely contracted at the 

 extreme summit ; antennse slightly longer than the head and prothorax 

 together; eyes slightly prominent, a little more so in the male than in 

 the female. Pronotum rather long, nearly equal, broadening a very 

 little posteriorly, transversely arched, with a scarcely perceptible 

 median tectiform carina and well-rounded lateral margins ; the hind 

 scarcely longer than the front lobe ; the hind border delicately mar- 

 ginate, obtuse-angled ; jDrosternal thorn rather long, conical, compressed, 

 bluntly pointed; meso- and metastethia together much longer than 

 broad. Tegmina and wings reaching the tip of the abdomen. Femora as 

 long as the abdomen, the superior carina slight, unarmed ; hind tibife 

 slender, the spines of either side of equal length, scarcely diverging, 

 the upper lateral margins smooth and rounded ; first joint of hind tarsi 

 scarcely longer than the third, the second small, with a large inferior 

 apical lobe ; pulvillus large, nearly twice as long as broad. 



12. Hesperotettix viridis {Ommatolcimpis viridis Thorn.). 1 ^, Lake 

 Point, Salt Lake, July 26. 



13. Mermiria neomexiccma {Opomola (sic!) neomexicana Thorn.). Two 

 pupse were brought home, one from the foot-hills at the entrance to 

 Clear Creek Canon, July 3, the other from Williams Caiion, Manitou, 

 Colo., July 15. 



11. ChrysocJiraon deoriim nov. sp. Head large, prominent; fastigium 

 of vertex broad, scarcely acute-angled in front; lateral foveolte scarcely 

 depressed, subquadrate, nearly twice as long as broad, the inner angle 

 rounded, the edges shining ; frontal costa with straight edges, scarcely 

 broadening below, flat, distantly punctate in two rows, below the ocellus 

 vanishing; whole front faintly and very sparsely punctate, the cheeks 

 smooth. Pronotum gently constricted in the middle, the front border 

 a little full, the hind border very obtusely angled; median carina equal, 

 slight. The general color is brown, the face and antennae with a red- 

 dish tinge, the cheeks a little ashen, the vertex pallid, with a pair of 

 narrow, blackish stripes next the upper edge of the eyes, which follow 

 along and are intenser U'pon the lateral edges of the fastigium, and 

 extend backward to the pronotum. There is a broad dusky band behind 

 the middle of the eyes, which extends over the lateral margin of the 

 pronotal disk, broken by a slender, oblique, yellowish-brown line, which 

 extends forward from the base of the tegmina, and, having divided this 

 belt, faintly follows its upper margin to the eye. The tegmina are 

 shorter than the abdomen, pallid, brown on the basal third of the upper 

 area, the basal two-thirds of the median area, and the upper edge of 

 the lower area ; beyond, a few coarse brownish flecks. Wings scarcely 

 shorter than the tegmina, pellucid, the upper veins dusky, the middle 

 ones bluish. Hind femora reddish-brown, more or less inluscated along 

 the upper margin, the apex black ; hind tibiee red, black at extreme 

 base, the spines red at base, black at tip; abdomen yellowish, tinged 



