34 



species none of which seem to have been decribecl. They 

 occur upon the ojDen camp from Cordoba and Santa Pe south- 

 ward at least to Bahia Blanca, being among the commoner 

 grasshoppers. 



TABLE FOR SP:PARAT1NG THE SPECIES. 



A. Largei". Tegmina with a distinct, narrow, light-colored subcostal 

 stripe, 

 b. General color above reddish brown, more or less marked with black 

 and dark brown. Pronotum with the disk dark and the lateral 

 c irinti? light. sig'iiatipenuis Bruner. 



bb. General color above dull testaceous without distinct mottlings or 

 other marks. Pronotum with the disk unadorned; the upper 

 edges of sides blackish. pallida Bruner. 



AA. Smaller. Tegmina not provided with an especially distinct, narrow, 

 light-colored subcostal stripe, 

 b. Whole insect above more or less varied by lines of green, brown or 

 testaceous and conspicuously marked with black and white. 



variabili-s Bruner. 



bb. Whole insect above quite evenly dull brownish, the raai'kings 



inconspicuoiTS. obscura Bruner. 



S. HignaUpennis n. sp. 



The larger of the four species belonging to this genus in 

 which the general color above is reddish brown, more or 

 less marked with black or dark brown ; fastigium of the ver- 

 tex but gently depressed, the lateral foveolae well marked, 

 twice as long as broad : j^ronotum with the median carinae 

 qiute prominent the lateral ones being obliterated with the 

 exception of in front and towards the rear where they 

 appear as whitish raised ridges : tegmina and wings extend- 

 ing slightly beyond the tip of the abdomen in both sexes, as 

 do also the hind femora; the latter comparatively robust; 

 basal tegmina with a subcostal white line, the median area 

 provided with a row of rather large subquadrate dusky 

 spots ; other spots of same color also scattered upon the 

 dorsal, apical, and costal areas of wing ; posterior femora 

 with the knees above black, indications of dusky bands on 

 upper edge of exterior and interior faces, also sulcus ; hind 

 tibiae pale purple. 



Length of body: cf 17mm, 9 22 mm; pronotum, d" 3.5 

 mm, + 4 to 4.25 mm; tegmina, c? 12.5 mm, ? 16 mm; hind 

 femora, c? 10 mm, 9 13 mm. 



