230 PROrKKhlMiS OF THE XATKtXAI. Ml'SI-.TM. vclxx. 



c'lavato, upturned, the suiu'suiiial phite ratlier loiij; triangular, with 

 tolerably straij^lit sides, Hlij^litly ami broadly elevated in the basal half, 

 niutangulate apex, the whole apical halt' at a slij^htly lower plane than 

 the basal, the median sulcus rather broad and distinct, with rather 

 sharj) walls, terminating with the upper shelf; furcula consisting of a 

 pair of slight, distant, slender denticulations, lying outside the ridges 

 of the aiii)raanal plate, nuich shorter than the last dorsal segment; 

 eerci snbejpial, jjunctate, compressed laminae, about tour times as long 

 as broad, feebly and broadly constricted mesially, the apical portion 

 scarcely so broad as the base, and gently incurved, somewhat sulcate, 

 the tip well rounded but subangulate interiorly, reaching the tip of the 

 supraanal plate; subgenital plate sm.ill, a little broader at base than 

 at apex, feebly compressed apically and faintly elevated, the apical 

 margin well rounded, entire. 



Length of body, male, 20 mm., female, 23 mm.; antennae, male and 

 female, mm.; tegmina, male and female, IG mm.; hind femora, male, 

 12 mm., female, l."3.2.") mm. 



Eighteen males, females. Medicine Hat, Assiniboia, Sei)(ember, 

 (T.S.N.M. — Riley collection: L. Bruner); Montana (L. Bruner); (lordon, 

 Sheridan County, Nebraska (U.S.N.M. — Kiley collection); Fort llobin 

 son, Dawes County, Nebraska, August 21, L. Bruner (same); Custer 

 County, Colorado, T. D. A. Cockerell (same). 



Colorado and Nebraska specimens appear to have the male cerci 

 slightly broader apically than those from farther north and may i)rove 

 distinct. 



52. MELANOPLUS PALMERI, new species. 



(Plate XV, fig. 7.) 



(Irayish or brownish fnscous, darker above than below. Head not 

 prominent, testaceous, sometimes ferrugineo testaceous, more or less 

 Hecked with fuscous, which prevails above and appears in a broad i)ost 

 ocular band; vertex gently tumid, slightly elevated above the prono- 

 tum, the interspace between the eyes rather broad, much broader than 

 (male) or twi<;e as broad as (female) the basal antennal joint; fastigium 

 steejdy deciivent, sulcate throughout; frontal costa rather prominent, 

 equal, as broad as the interspace between the eyes, i)ercurrent, sulcate 

 at ami below the ocellus, feebly punctate; eyes rather large, moderately 

 prominent in the male, distinctly longer than the intraocular portion of 

 the enae; antennae luteous or luteo testaceous, about four-tifths (male) 

 or two-thirds (female) as long as the hind femora. Prono^^um subecpiiil, 

 enlarging a very little i)osteriorly, the lower half of the lareral lobes 

 cleaner and brighter in color than the rest, the prozona with a more or 

 less distinct but sometimes nearly obsolete postocular blackish fnscous 

 band; disk passing by a well rounded angle into the vertical lateral 

 lobes, the median carina distinct on the metazona only, almost wholly 

 obsolete on the prozona; front margin truncate, hind maigin feebly 



