13G Annals of the Carnegie Museum. 



not u m ; vertex as wide as the broadest portion of the frontal costa 

 (cf ) or about one-fourth wider ( 9 ), the fastigium comparatively large 

 and broadly, but shallowly, sulcate, roundly depressed, provided with 

 a faint transverse carina where it meets the frontal costa. Latter 

 flat and punctulate above, sulcate at the ocellus and below, about 

 reaching the clypeus, of nearly equal width. Antennae filiform, 

 slender, almost as long as the hind femora. Pronotum expanding 

 behind, the hind margin subangulate, the transverse sulci fairly 

 prominent, especially the posterior, which is straight and situated 

 plainly behind the middle; median carina visible only on the smooth 

 hind lobe. Tegmina lobate, nearly as broad as long, in the female 

 slightly overlapping on the dorsum, in the male not quite touching. 

 Hind femora large and robust, in both sexes reaching beyond the tip 

 of the abdomen by nearly the length of the knees. Hind tibiae also 

 rather robust and eight-spined externally. Tip of male abdomen not 

 enlarged, the last ventral segment short, its upper or outer margin 

 meeting in a slightly acute angle; supra-anal plate small, plain, tri- 

 angular, its sides gently curved, the median base provided with a small 

 sulcus; cerci rather long and slender, but little tapering apically, 

 curved gently inward and to the rear. Mesosternal lobes separated 

 by a space a little longer than wide. Prosternal spine of moderate 

 size, acuminate. Valves of ovipositor comparatively small and 

 slender — of normal form among the Melanopli. 



General color above brunneo-ferruginous, profusely and irregularly 

 mottled with fuscous; below flavous. Sides of head and upper half 

 of sides of pronotum provided with well defined darker bands, most 

 prominent in the male, face, cheeks below the eyes, and lower portion 

 of lateral lobes of pronotum of latter sex pale flavous, as are also dashes 

 on the pleura in advance of the base of the hind femora. Inner face 

 of hind femora infuscated, the upper edge and genicular area also 

 more or less strongly fuscous, in the male each femur is provided a 

 little before its middle above with a well defined fuscous patch; lower 

 edge flavous, in the female with a pinkish tinge basally and next to 

 the inner edge. 



Length of body, cf , 18.5 mm., 9 , 24 mm.; of pronotum, cf , 5 mm., 

 9 , 6.5 mm.; of tegmina, cf , 3.25 mm., 9 , 5-5 mm.; of hind femora, 

 cf . 1 1 mm., 9,15 mm. 



Habitat. — Several specimens comprising both sexes are before me 

 coming from Chapada, near Cuyaba, Matto Grosso, Brazil, where 



