254 PROCEEDINGS OF THE NATIONAL MUSE I'M. VOL. XK. 



68. MELANOPLUS INORNATUS, new species. 



(Plate XVII, fig. 3.) 

 PezoMtix inornatus McNEiLi, !, MS. 



A little above medium size, ferrugineo-testaceous. Head not prom- 

 inent, ferrugineo-testaceous, a little darker above, with a broad piceous 

 postocular band; vertex somewhat tumid, slightly elevated above the 

 pronotum, the interspace between the eyes as broad as (male) or fully 

 half as broad again as (female) the first antennal joint; fastigium 

 steeply declivent, faintly and broadly sulcate; frontal costa nearly per 

 current, equal, as broad as the interspace between the eyes, feebly sul. 

 cate at and below the ocellus, punctate throughout; eyes moderately 

 large, slightly prominent in the male, only a little longer than the 

 infraocular portion ofthegeuae; antennae testaceous, a little infuscated 

 apically, about three-fourths (male) or five-sevenths (female) as long as 

 the hind femora. Pronotum subequal but ieebly expanding posteriorly, 

 the sides with a broad, piceous, postocular band confined to the prozona, 

 the disk broadly subtectate and gently convex, passing by a tolerably 

 abrupt shoulder, forming tolerably distinct lateral carinae at least on 

 the posterior part of the prozona, into the anteriorly tumid subvertical 

 lateral lobes; median carina tolerably distinct and percurrent, sharper 

 on the metazona than on the prozona, arid on the latter very feebly 

 arched longitudinally; front margin faintly convex, hind margin very 

 obtusaugulate; prozona sparsely and very shallowly punctate and 

 longitudinal (male) or quadrate or longitudinally subquadrate (female), 

 about a third as long again as the closely and not very deeply punctate 

 metazona. Prosternal spine moderate, appressed conical, retrorse, 

 stouter in the fern ale than in the male; interspace between mesosternal 

 lobes somewhat longer than broad with diverging sides (male) or 

 longitudinally subquadrate (female). Tegmina abbreviate, somewhat 

 longer than the prouotum, overlapping, ovate-lanceolate, apically sub- 

 acuminate, ferrugineo-fuscous. Fore and middle femora only a very 

 little tumid in the male; hind femora rather slender, compressed, tes- 

 taceous with a ferruginous tinge, growing flavescent interiorly, the gen - 

 iculatioh fuscous; hind tibiae rufo-testaceous, the spines black on the 

 apical half, eleven to twelve in number in the outer series. Extremity 

 of male abdomen clavate, somewhat recurved, the supraanal plate 

 triangular with acutangulate apex, the margins not elevated, a trans- 

 verse, percurrent, median plica, and a median sulcus which is triangular 

 on the basal half, slender in the apical half, and crosses two-thirds of 

 the plate; furcula consisting of the feebly projecting lobular expan- 

 sions of the inner extremities of the divided lateral halves of the last 

 dorsal segment; cerci rather large and clepsydral, strongly contracted 

 before the middle, the basal portion tapering but slightly, while the 

 larger apical portion expands greatly, especially above, the rounded tip 



