Bruner: South American Locusts. 153 



taken together. Pronotum subcylindrical, the median carina promi- 

 nent throughout, severed only by the last sulcus, hind margin angu- 

 late, lateral lobes granulately rugose, a little higher than long, their 

 lower edge sinuose and obliquely docked in front. Tegmina as 

 described under generic diagnosis. Legs normal. Abdomen graceful, 

 gently tapering, the apex of the lasl ventral segment entire, gently 

 acuminate; cerci evenly tapering, a little longer than the supra-anal 

 plate, which latter is triangular and has the middle strongly longi- 

 tudinally sulcate and the margins more or less sinuate. Mesosternal 

 lobes separated by a quadrate space, which is about as long as broad, 

 and equal to the lobes themselves. 



General color of insect above dark brownish, verging into dull black 

 on the occiput, upper portion of the sides of the pronotum, and the 

 base of the tegmina. Front and cheeks varied with dull brown; 

 lower part of the lateral lobes of the pronotum and pleura together 

 with the coxae, femora, and tibia? of anterior and middle legs, pale 

 testaceous. Inner face largely, upper edge entirely, and the superior 

 portion of the outer disk of the hind femora narrowly, pallid, the 

 latter most conspicuously so. Remaining portion of the outer disk, 

 together with the genicular portion and base of tibia 1 , black. Pectus, 

 venter, and under side of hind femora bright orange-red. Abdomen 

 above fuscous, varied at sides with pallid maculations. Antennae 

 black; palpi pallid with narrow fuscous fasciae. Wings hyaline, be- 

 coming somewhat embrowned or infuscated along the costal margin 

 and apically. Tibiae brownish, with a wide palesubbasal annulation; 

 spines pallid, with black apical half; tarsi pallid, annulate with fuscous. 



Length of body, cf, 16.5 mm., of pronotum, 3.35 mm., of tegmina, 

 16 mm., of hind femora, 10 mm. 



Habitat. — The single specimen at hand was collected by J. Stein- 

 bach at Santa Cruz de la Sierra, Bolivia, at an elevation above sea-level 

 of 450 meters. It also bears the accession number 4546. 



The type is the property of the Carnegie Museum. 



Genus Staurorhectus Giglio-Tos. 



Staurorhectus Giglio-Tos, Boll. Mus. Zool. Anat. Comp. Torino, XII, Xo. 302, 

 p. 26 (1897); Bruner, Ann. Carnegie Mus., VIII, p. 31 (1911). 



48. Staurorhectus intermedius Bruner. 

 Staiirorheclus intermedius Bruner, Ann. Carnegie Mus., VIII, p. 31 (191 1). 



Habitat. — Santa Cruz de la Sierra, Bolivia, a single male specimen. 



