SCUDDER. — THE GENUS SCHISTOCERCA. 449 



3. Schistocerca carinata sp. nov. 



11 Acridium scuteUare Walk., Cat. Derm. Salt. Brit. Wus., III. 579 (1870). Cf. 

 No. 25, below. 



Slightly above the ordinary size and moderately stout, fusco-testaceous 

 with an olivaceous tinge. Head rather large, dull testaceous, the promi- 

 nences iufuscated, with a slender suborbital, genal, obscure fuscous streak 

 and usually a pair of slender, diverging, fuscous streaks on the vertex; 

 eyes considerably longer than the infraocidar portion of the gena3, promi- 

 nent in the male ; antennai flavous or rufous, sometimes infuscated, 

 especially on distal half. Pronotum well arched and very distinctly 

 carinate so as almost to appear tectiform, the metazona enlarging so as to 

 be a little broader than width at eyes, at least in the female, the pos- 

 terior margin feebly more than rectangulate, the angle very narrowly 

 rounded ; prozona jjroduced and rounded anteriorly, somewhat shorter 

 than the metazona, more or less infuscated on the disk, with obscure pallid 

 quadrate patches on the lateral lobes. Prosternal spine moderate, sub- 

 conical, erect, blunt. Tegmina much longer than the abdomen, obscure 

 olivaceo-testaceous, very obscurely cloudy-maculate with fuscous through- 

 out, substrigate distally; wings vitreous, washed in the faintest manner 

 with aurantio-fuliginous, nowhere maculate. Fore and middle femora 

 scarcely enlarged in the male; hind femora ferrugineo-testaceous, the 

 outer face dull ivory white, the inner portion of the upper face often with 

 a pair of distant fuscous blotches ; hind tibia; purplish testaceous, the 

 spines luteous with black tips. Male cerci more than twice as long as 

 broad, straight, tapering slightly throughout, truncate and very feebly 

 emargiuate apically; subgenital plate rather small, elongate, apically 

 acuminate as seen laterally, the apical fissure U-shaped and moderately 

 deep. 



Length of body, ^, 31 mm., 9? 55 mm.; antennre, ^, 14mm.; teg- 

 mina, (J, 33 mm., 9» 54 mm.; hind femora, ^, 17.5 mm., 9) 30 mm. 



1 $, Q 9- ^^^ I^i^gO) Cal., Crotch; Sierra Nola, Mex., Dec. 3-6, 

 Palmer ; Orizaba, Mex., Jan. (Bruner) ; Vera Cruz, Mex., Heyde 

 (Bruuer). 



4. Schistocerca columbina. 



Gri/llus cegtjptius Thunb., Mem. Acad. St. Petersb., V. 247 (1815)t. Stul [misnomer]. 

 Gryllus columhinus Thunb., Loc. cit., IX., 899, 425 (1824). 

 Acridium (Schistocerca) columhinum Stal, Rec. Orth., I. 67 (1873). 

 Schistocerca columbina Brunii.-Redt., Proc. Zool. Soc. Lond., 1892, 210 (1892). 

 Gri/llus occidentalis Thunb., Loc. cit., IX. 400, 429 (1824) t. Stal. 

 VOL. XXXIV. — 29 



