322 PROCEEDINGS OF THE NATIONAL MUSEUM. VOL.XX. 



consisting of a pair of distant slight denticulatious, lying well outside 

 the base of the submedian ridges of the supraanal plate; cerci broad 

 at base, rapidly tapering to the middle, where they are about half as 

 broad as at base, beyond again expanding wholly by the triangular 

 production of the inferior apical portion, the apical margin truncate, 

 the whole about two and a half times the basal breadth, feebly incurved ; 

 subgenital plate about as broad as long, the apical margin slightly 

 elevated above the lateral, the two together, as seen from above, well 

 rounded, entire. 



Length of body, male, 17.5 mm., female, 21 mm.; antennae, male, 8 

 mm., female, G mm.; tegmina, male and female, 4 mm.; hind femora, 

 male, 9.25 mm., female, 10.5 mm. 



Six males, 7 females. Humboldt Eiver, Nevada, August, S. W. Gar- 

 man (Museum Comparative Zoology); mountains near Lake Tahoe, 

 California, October 14, H. W. Henshaw, Wheeler's Expedition, 1876; 

 Truckee, Nevada County, California, October 10. 



104. MELANOPLUS BLATCHLEYI, new name. 

 (Plate XXI, fig. 10.) 



Fezotettix occidental BRUNER, Can. Ent., VIII (1876), p. 124; ibid., IX (1877), 

 p. 144; Rep. U. S. Ent. Comm., Ill (1883), p. 59. McNEiLL, Psyche, VI (1891), 

 p. 76. OSBORN, Proc. Iowa Acad. Sc., I, Pt.-ii (1892), p. 117. BRUNEK, Publ. 

 Nebr. Acad. Sc., Ill (1893), p. 27. BLATCHLEY !, Can. Ent., XXVI (1894), pp. 

 243-244. 



Pezotettix viola BLATCHLEY!, Can. Ent., XXIII (1891), p. 81. 



Of moderately large size, cinereo-fuscous with an olivaceous tinge. 

 Head somewhat prominent, olivaceo-testaceous variably but generally 

 considerably infuscated, above dark fuscous, separated by a testaceous 

 stripe from the broad piceous postocular band; vertex gently tumid, 

 feebly elevated above the pronotum, the interspace between the eyes 

 half as broad again (male) or twice as broad (female) as the first antennal 

 joint; fastigium somewhat steeply declivent, plane, with the lateral 

 margins faintly raised in the male; frontal costa fading before the clyp- 

 eus, equal or subequal, as wide as the interspace between the eyes, 

 sulcate at and below the ocellus, at least in the male, somewhat densely 

 punctate throughout; eyes moderately large and prominent, very much 

 longer than the iufraocular portion of the genae; antennae rufo-testa- 

 ceous, scarcely shorter than (male), or nearly two-thirds as long as 

 (female) the hind femora. Pronotum subequal, feebly enlarging (at least 

 below) on the metazona, the sides with a broad piceous postocular band 

 confined to the prozona in the male, the same being wholly obsolete, 

 obscure, or confined to the upper limits of the lateral lobes in the female; 

 disk very broadly convex, passing by a distinct but blunt angulation 

 forming feeble lateral carinae into the inferiorly vertical lateral lobes; 

 median carina distinct but not very sharp on the metazoua, subobso- 

 lete or obsolete, especially between the sulci and, in the male, on the 

 prozona; front margin truncate, hind margin obtusangulate, the angle 



