SCUDDER. — THE GENUS SCHISTOCERCA. 457 



15. Schistocerca infumata sp. nov. 



Of large size and moderate stoutness, dark olivaceo-fuscous. Head 

 not very large, olivaceo-fuscous, with a subocular genal fuscous streak, 

 and a pair of divergent fuscous streaks on the vertex, enclosing a median 

 luteo-testaceous stripe ; frontal costa subequal, deeply sulcate at and below 

 the ocellus ; eyes a little prominent in the male, distinctly ((^ ) or scarcely 

 ( 9 ) longer than the infraocular portion of the geuoe ; antennae barely a 

 third longer than the head and prouotum together in the male, luteous 

 or luteo-testaceous. Pronotum well arched but feebly subtectate, with 

 distinct percurrent median carina in the middle of a posteriorly attenu- 

 ating luteo-testaceous median stripe edged with fuscous, the rest of the 

 pronotum dark olivaceo-fuscous with an obliciue inferior fuscous cloud or 

 stripe on the lateral lobes, the whole prouotum gradually enlarging pos- 

 teriorly, so that the metazona is considerably (9) or a little ( J" ) wider 

 than at the eyes; prozona angularly produced anteriorly, the angle rather 

 narrowly rounded, but little shorter than the metazona, which is posteri- 

 orly rectangulate d^) or faintly obtusangulate (9)? the angle not very 

 narrowly rounded. Prosternal spine slight, cylindrical, blunt, erect. 

 Tegmina extending far beyond the abdomen, moderately slender, olivaceo- 

 testaceous, immaculate ; wings distinctly infumate throughout. Fore and 

 middle femora not enlarged in the male ; hind femora dark testaceous, the 

 outer face and genicular lobe ivory white, the carinoe punctate with fus- 

 cous, occasionally the other faces more or less hoary ; hind tibife dull 

 ferruginous, the spines luteous (or in the female the outer spines luteous, 

 the inner ferruginous) with black tips. Male cerci very small for this 

 genus, half as long again as broad, the lower margin straight, the upper 

 rounded, and tapering so as to be at the truncate apex hardly a third as 

 broad as at broadest. Subgenital plate straight, long, scaphiform, hardly 

 compressed, apically deeply and still more widely emarginate to form a 

 U-shaped fissure with diverging sides, the angles subacuminate. Whole 

 body and legs pilose. 



Length of body, ^ , 33.5 mm., 9, 58 ram. ; antennae, ^, 14 mm., 9, 

 18 mm. ; tegmina, ^ , 38 mm., 9 , 56 mm. ; hind femora, ^ , 21.5 mm., 

 9 32 mm. 



7 (J , 3 9 . Montevideo, Uruguay, Meyer-Diir ; Brazil, Janson. 



