238 PROCEEDINGS OF THE NATIONAL MUSEUM. 



Thirteen males, 16 females. Montana (U.S.N.M. Riley collection); 

 Fort Ellis, Montana, July 29-30 (same); Englewood, Lawrence County, 

 South Dakota, Haggard (L.Bruner) ; Ouster, Black Hills, South Dakota, 

 Bruner (U.S.N.M. Riley collection); Harneys Peak, South Dakota, 

 7,000 to 8,000 feet, Bruner (same); Fort McKinney, Johnson County, 

 Wyoming, July (same); Sheridan, Wyoming, August 12, L. Bruner; 

 Poudre Kiver, Colorado, June (U.S.N.M. Eiley collection); south- 

 ern Colorado, June 11-20, Lieutenant Carpenter (same; S. H. Scudder); 

 Taos Peak, Sangre de Cristo Mountains, New Mexico, 13,000 feet, Car- 

 penter (U.S.N.M. Riley collection). 



It is also credited to Pine Eidge, in the extreme northwestern part 

 of Nebraska (Bruner). 



57. MELANOPLUS GRACILIPES, new species. 



(Plate XVI, fig. 2.) 

 Pezotettix gracilipes MCNEILL!, MS. 



Vf 



Of small size and slender form, fusco-testaceous, more or less ferru- 

 ginous. Head not prominent, testaceous, more or less heavily and dis- 

 tinctly punctate with fuscous, generally fuscous above, with a broad, 

 fuscous, postocular band ; vertex feebly tumid, scarcely elevated above 

 the pronotum, the interspace between the eyes narrow, not (male) or 

 scarcely (female) wider than the first an ten nal joint; fastigium steeply 

 declivent, moderately sulcate; frontal costa fading before the clypeus, 

 equal or subequal, as wide as (female) or slightly wider than (male) the 

 interspace between the eyes, sulcate at and below the ocellus, punctate 

 throughout and more or less biseriately; eyes moderately large, rather 

 prominent, much longer than the infraocular portion of the genae; 

 antennae testaceous, about four-fifths (male) or one-half (female) as long 

 as the hind femora. Pronotum subequal, faintly enlarging posteriorly, 

 the lower portion of the lateral lobes testaceous, the upper occupied 

 by a piceous postocular stripe which only crosses the prozona, the disk 

 broadly convex, passing into the subvertical lateral lobes by a rounded 

 but abrupt angulation, which forms very blunt percurrent lateral cari- 

 nae; median carina distinct but low, percurrent, hardly more distinct 

 on the metazona than on the prozona; front margin faintly convex, 

 hind margin subtruucate but faintly augulate; prozona distinctly lon- 

 gitudinal (male) or transverse (female), more than half as long again as 

 the densely and very distinctly punctate metazona. Prosternal spine 

 moderately long, erect, appressed, conical, blunt; interspace between 

 raesosternal lobes nearly half as long again as broad (male) or trans- 

 verse, but much narrower than the lobes (female). Tegmina abbreviate, 

 about as long as the pronotum, broad ovate, attingent, apically angulate. 

 brownish fuscous. Fore and middle femora slightly tumid in the male; 

 hind femora long and slender, dull testaceous, sometimes with a ferru- 

 ginous tinge, more or less sprinkled with fuscous dots, which when 

 most profuse are collected in two oblique fasciations seen most clearly 



