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Bruner: Saltatorial Orthoptera. 89 



may be recognized by their having the hind femora provided apically 

 below with rather large tubercles and spines or teeth. Nine species 

 have already been described and now a tenth is added. They may 

 be separated by the accompanying key modified from that given by 

 me in Volume II of the Orthoptera of the Biologia Centrali- Americana. 



A. Posterior tibiee armed externally with seven spines. 

 b. Larger (d^, 22 to 24 mm.; 9 , 25-32 mm.). 



c. Antennae distinctly ensiform. General color obscure, greenish 

 olive; the hind tibia; apically, along with the tarsi, miniaceous. 



ensicornis Stal. 

 cc. Antennae very narrowly and obsoletely subensiform or linear. 



d. General color varying from coral-red to subolivaceous black. 

 Surface of the head, thorax, and the basal abdominal seg- 

 ments, above granulose varicolor Stal. 



dd. General color yellowish-testaceous. Surface of the head, 

 thorax, and basal abdominal segments rugose above. 



sellala Stal. 

 bh. Smaller (cf, 15-17 mm.; 9. 22 mm.). 



c. Surface rather densely pilose. Geniculee of the hind femora aiiute 



sanguineous pilosa Stal. 



cc. Surface with but few hairs. Genicular of the hind femora black. 



Cerci robust peruviana Bruner. 



A A. Posterior tibiae armed externally with eight spines. 



b. Dorsum of the pronotum and the basal abdominal segment on each side 

 provided with smooth, somewhat elevated, callosities. 

 c. Body and the head above strongly rugoso-punctulate. General 



color clay-yellow antennata Stal. 



cc. Body and the head above less strongly punctulate. Color sub- 

 ferruginous-olivaceous, the head black. Legs greenish olive, the 



hind geniculae subsanguineous Icevifrons Stal. 



bb. Dorsum of the pronotum and the basal abdominal segment above 



without the callosities, but sometimes with glabrous areas. 



c. Larger (cf, 27 mm.; 9, ?)• The glabrous areas present, but 



inconspicuous. General color pale yellowish olive. Dorsal field 



of the abdominal segments provided with two prominent circular 



black spots, one on either side boliviana sp. nov. 



cc. Smaller (cf , 14.5 mm.; 9 , 22 mm., ?). Without the glabrous areas 

 referred to above. General color variable. 

 d. Frontal costa plain, not sulcate. Body and head above densely 

 and strongly rugoso-punctate. Color yellowish testaceous. 



turgida Stal- 

 dd. Frontal costa sulcate. Body and head above less densely' 

 punctulate and hirsute. Color obscure olive-green. 



brunneri Stal. 



