SCUDDER. — THE GENUS SCHISTOCERCA. 4G9 



Length of body, 34 mm.; antennae, 16+ mm. ; tegmina, 31 mm. ; hind 

 femora, 20.5 mm. 



1 ^ . Sinaloa, Mex., Keels, Behrens. 



33. Schistocerca separata sp. nov. 



Of average size and stoutness, dark olivaceous. Head rather large, 

 flavous, much mottled and streaked with olivaceous, and with a pair of 

 dark olivaceous diverging stripes on the vertex, bordering a median flavo- 

 olivaceous stripe; frontal costa subequal, shallowly sulcate below the 

 ocellus; eyes somewhat prominent in the male, much longer than the 

 infraocular portion of the genre ; antennae rufous. Pronotum well arched, 

 in no way tectate, with a slight median carina, dark olivaceous, darker 

 on disk than on the lateral lobes, where it is faintly mottled with flavous, 

 with a rather broad and equal median stripe of very faint olivaceous, 

 sometimes wholly obscured and always confined to the prozona ; the latter 

 angularly produced in front, the angle rounded, almost as long as the 

 metazona, which is but slightly expanded so as to be slightly narrower 

 ( (^ ) or slightly broader ( 9 ) than at the eyes, posteriorly only a little 

 obtusangulate, the angle narrowly rounded. Prosternal spine moderate, 

 conical, blunt, suberect. Tegmina reaching considerably beyond the 

 abdomen, not very slender, olivaceous, in the female the median area 

 more or less ferruginous and with the distal half showing the faintest 

 possible signs of small scattered maculations ; wings faintly luteo-infumate. 

 Fore and middle femora not enlarged in the male ; hind femora olivaceous, 

 the outer fiice lighter than the rest with a flavous tinge ; hind tibiae oli- 

 vaceo-testaceous, the spines luteous with black tips. Male cerci fully 

 twice as long as basal breadth, the lower margin straight, the upper 

 slightly convex and sloping, the upper posterior angle well rounded, the 

 apical margin roundly and a little obliquely truncate ; subgenital plate 

 slender scaphiform, much compressed, apically acuminate as seen laterally 

 and fissate to the base, the lateral lobes rounded. 



Length of body, ^ , 32 mm., 9 , 55 mm. ; tegmina, ^ , 34.5 mm., 9 , 

 55 mm.; hind femora, ^, 19.5 mm., 9, 33 mm. 



1 (? ? 2 9- Chontales, Nicaragua; Costa Rica, Underwood (Bruner). 



34. Schistocerca shoshone. 



Acridlum shoshone Thorn., Proc. Acad. Nat. Sc. Philad., 1873, 295 (1873); Rep 



U. S. Geol. Surv. West 100 Mer., V. 895, pi. 43, fig. 2 (1875). 

 Schistocerca shoshone Brun., Rep. Neb. St. Hort. Soc, 1894, 163 (1894). 



