68 • Annals of the Carnegie Museum. 



Santa Cruz, Bolivia, are referred to Gerstaecker's austera. They were 

 taken at an elevation of from 250 to 300 meters above sea-level by 

 J. Steinbach. C. M. Ace. No. 5060. One male from Buena V'ista 

 and a female from the Rio Japacani, eastern Bolivia, are also referred 

 to this species. They were likewise taken by Steinbach. C. M. Ace. 

 No. 5573. 



Genus Zosperamerus Bruner. 



Zosperamerus Bruner, Biol. Cent.-Amer., Orth., II, p. 214, 274 (1907-8); Ib., 

 Ann. Carnegie Mus., VIII, p. 94 (191 1). 



There is at hand a single female specimen of a locust of this genus, 

 which seems to be undescribed. . In order to show its relationship to 

 the forms already known the synoptic key published in a former 

 volume of the Annals (VIII, p. -94) is modified to include it and 

 herewith presented. A second species is also included in material 

 which has arrived later. 



Synopsis of the Species of Zosperamerus. 

 A. Size smaller ( 9 . 20 to 22 mm.; cf, 17 mm.). General color greenish olive 

 to dark bruneo-cinerous or even ferruginous, varied with bands and 

 mottlings of dirty white or testaceous and black. 

 h. Femora of all the legs conspicuously banded with pallid and fuscous. 



[Nicaragua, Central America.] zonalipes Bruner. 



bh. Femora less conspicuousb', or not at all, banded. 



c. Face, cheeks, lateral lobes of the pronotum, pleura, and the hind 

 femora conspicuously marked with dirty white patches [Peru]. 



alhopiclns Bruner. 

 cc. Face, cheeks, lateral lobes of the pronotum, pleura and the femora 

 very obscurely, or not at all, thus marked. 

 d. Pallid markings on face, cheeks, lateral lobes of the pronotum, 

 pleura, and hind femora testaceous. [Para, Brazil.] 



brasiliensis Bruner. 

 dd. Insect entirely without pallid maculations or bands on legs. 

 Pronotum and tegmina vittate with black. Hind femora 

 olive-green, the knees ferruginous. [Bolivia.] 



villatiis sp. nov. 



AA. Size larger ( 9 , {■), d" , 27 mm.). General color luteous, varied with red and 



black [Para, Brazil] marginalis Walker. 



119. Zosperamerus brasiliensis Bruner. 



Zosperamerus brasiliensis Bruner, Ann. Carnegie Mus., VIII, pp. 94-96 (191 1). 



The present species is represented in the collection before me by a 

 single female. It comes from Uassa Island, Uassa Swamp, where it 

 was taken in June, 1918, by S. M. Klages. C. M. Ace. No. 6167. 



