472 Annals of the Carnegie Museum. 



Head about as wide as the anterior margin of the pronotum; the 

 front and the lower portion of the cheeks somewhat rugulose, remainder 

 smooth; occiput slightly elongate; eyes of moderate size, prominent, 

 slightly longer than wide, separated above by a space about twice as 

 wide as the frontal costa between the antennae; anterior edge of 

 cheeks one-third longer than the eyes; fastigium of the vertex gently 

 depressed, the antero-lateral margins bordered by arcuate carina?) 

 the surface flat, depressed, rugoso-punctate, partially divided by a 

 short anterior median longitudinal carina. Frontal costa with 

 parallel sides, the surface rugose, fading below the median ocellus; 

 facial or lateral carinae not prominent, fading above at the lower edge 

 of the antennal scrobes. Antennae filiform, about as long as the 

 hind femora. Pronotum strongly rugoso-punctate, the anterior and 

 posterior lobes about equal in length; transverse sulci continuous, 

 but not strongly impressed, the median carina present only as slightly 

 elevated rugosities between the sulci; disk of hind lobe flattened, 

 separated from the lateral lobes by a shoulder, but not carinate; front 

 margin advanced upon the occiput, the middle rather widely emargi- 

 nate; hind margin obtusangulate. Pleura rugoso-punctulate. Teg- 

 mina and wings fully developed, as long as the abdomen, the former 

 coriaceous, closely and irregularly nerved, but with few longitudinal 

 veins, which are separated from the closely veined areas as in Titanacris . 

 Wings tinted with red. Legs about normal, the hind femora graceful, 

 about three-fourths the length of the abdomen; hind tibiae somewhat 

 coarse, the inner spines much heavier than the outer ones, eleven in 

 number, the external margin eight-spined. Prosternal spine small, 

 pyramidal, the apex directed gently forward. 



General color grass-green, the eyes and antennae ferruginous. Tips 

 of tibiae and tarsi tinged with pink. Apical fourth of tegmina slightly 

 infuscated. Immediate base of tegmina on costal field marked with 

 an orange circular spot bordered by smoky brown. A narrow black 

 band at base of genicular area of hind femora preceded by an indefinite 

 pale band. 



Length of body, 9 , 57 mm., of pronotum, 10.5 mm., of tegmina, 

 44 mm., of hind femora, 27 mm. 



Habitat. — The only specimen at hand comes from Santa Cruz de la 

 Siena, Bolivia, where it was taken at an elevation of 450 meters by 

 J. Steinbach. The type is in the Carnegie Museum. 



This insect would fall in the first section of the synoptic table of 



