NO. 1121. REVISION OF THE MELANOPLISCUDDER. 53 



frontal costa equal, rather deeply sulcate below the ocellus; antermae 

 light brown, the basal joint unusually small. Pronotum small, equal, 

 compressed, the dorsum flat, the whole so much smaller than the head 

 as to give the insect a strangulated appearance, brownish green, mot- 

 tled with darker and lighter markings, the lateral carinae with a yel- 

 lowish stripe and the latera} lobes with a similar oblique stripe 

 descending to the lower anterior angle; the metazona is profusely 

 punctate, the transverse sulci deeply impressed, the median carinae 

 obsolescent, the lateral carinae wholly obtuse, the posterior margin 

 very obtusely angulate. Prosternal spine not very stout, cylindrical, 

 very bluntly tipped, inclined rather strongly backward. Tegmina 

 about as long as the pronotum, slender, short, lanceolate; wings rudi- 

 mentary. Hind femora slender, yellow, tinged on the upper half with 

 brownish, and obscurely, narrowly and transversely bifasciate above 

 with the same; hind tibiae glaucous (!), the spines reddish, tipped with 

 black; aroliuin extremely large. Abdomen yellowish, tinged above 

 with greenish brown, the last segment of the male scarcely upturned. 

 Supraanal plate of male broad triangular, with a deep percurreut 

 median sulcus, the margins of which are strongly elevated in the basal 

 half, gently elevated in the apical half, the apex slightly less than rec- 

 tangulate, blunt; furcula consisting of a pair of minute, rounded, 

 slightly projecting, adjacent lobes; cerci compressed laminate, scarcely 

 reaching the tip of the supraanal plate, gently incurved, tapering on 

 the basal half, scarcely enlarging beyond, where it is more than half as 

 broad as at the base, the tip broadly rounded, but slightly produced 

 below. 



Length of body, male, 18.5 mm.; antennae, 9.5 mm.; tegmina, 4.15 

 mm.; hind femora, 9 mm. 



One male. Plains of northern New Mexico, eastern slope, October 

 14-31, Lieutenant W. L. Carpenter. 



16. EOTETTIX, new genus. 

 (7)0??, dawn, i.e. eastern; rerrt^, grasshopper.) 



Body slender, elongate, feebly compressed, with very sparse pilosity. 

 Head relatively large and rather prominent but short, apart from the 

 prominent eyes almost broader than the pronotum, the face not very 

 oblique, the genae not tumescent, all the carinae prominent; vertex 

 faintly arched, not raised above the pronotum; fastigium rather nar- 

 row but greatly broadening anteriorly, very little declivent, shallowly 

 sulcate; frontal costa about as broad as the interspace between the 

 eyes, broadening above, the- margins distinctly elevated throughout; 

 eyes large and very prominent, rather broad oval, about half as long 

 again as broad, separated above by a moderate interval; antennae 

 slender, slightly depressed. Prouotum moderately long, equal, com- 

 pressed, with rounded subtectate but otherwise plane disk, the median 



