30 Annals of the Carnegie Museum. 



in front, becoming narrower and fainter posteriorly, but continuing 

 across the occiput to the anterior margin of the pronotum; disk and 

 top of head coarsely and shallowly punctulate. Eyes rather large, 

 but not especially prominent, in the male fully twice, in the female 

 one and two-thirds times the length of the anterior margin of the cheeks 

 immediately below them. Antennae filiform, not quite (9) or a 

 trifle longer (cf ) than the combined length of the head and pronotum, 

 the basal joints a little flattened, but not expanded; frontal costa 

 prominent, its sides rather coarse, nearly parallel, and reaching the 

 clypeus, the middle shallowly sulcate and coarsely punctulate, most 

 apparent below the ocellus. Face quite strongly oblique when viewed 

 in profile. Pronotum of moderate length, gently expanding caudad, 

 the two sections about equal in length, median carina prominent, 

 severed at middle by the last transverse sulcus; lateral carinae weaker, 

 most apparent in front, becoming less strong and diverging evenly to 

 the rear; posterior margin obtusangulate, the disk feebly cribrately 

 punctulate, most apparent on the hind lobe, lateral lobes and pleura also 

 similarly marked. Tegmina and wings perfectly developed, passing 

 the tip of the abdomen in both sexes, the former without a definite 

 intercalary vein or definite sub-basal costal lobe. Hind femora fairly 

 slender, surpassing the tip of the abdomen about one-fourth (a 71 ) or 

 one-fifth (9) of their length; hind tibiae fifteen-spined externally. 

 Interspace between the mesosternal lobes fully twice as long as broad 

 (o 71 ) or a little less (9 ). 



General color dark wood-brown, more or less tinged with ferruginous 

 and testaceous on the abdomen above and below. Tegmina more or 

 less strongly maculate or conspersed along the disk with black or 

 fuscous. In some specimens the tegmina possess a pallid subcostal 

 line, and the disk of the pronotum and occiput are provided with 

 longitudinal fuscous and pallid lines. Wings vitreous; becoming very 

 faintly clouded apically. The principal longitudinal veins fuscous, 

 most of the cross-veins and the longitudinal veins on anal field pallid. 



Length of body, o 71 , 20.5 mm., 9 , 29 mm.; of pronotum, o 71 , 4 mm., 

 9, 5 mm.; of tegmina, o 71 , 12 mm., 9, 23 mm.; of hind femora, cf , 

 13.5 mm. 



Habitat. — Chapada, Brazil, from June to October. They bear the 

 number "2094" of H. H. Smith. Types in the Carnegie Museum. 



