NO. 1453. SOUTH AMERICAN GRASSHOPPERS— REIIN. 379 



Measurements. 



mm. 



Length of body 18. 



Length of pronotum 3. 5 



Length of tegmina 8. 5 



Length of caudal femur ' li>. 



An additional paratypic male has also been examined. Aside from 

 the fact that the antennae are somewhat darker it does not diftfrr from 

 the t^'pe. 



BOF-IELLIA, new genus. 



Allied to StaurorJtectus Giglio-Tos, but differing in the head, which 

 is not elevated, and with the face much less retreating, the distinct 

 lateral foveohB and carina^ of the angle of the fastigium and frontal 

 costa, the slenderer and shorter antennte, the more robust caudal 

 femora, the shorter and thicker male cerci and the shorter and less 

 produced male subgenital plate. 



lype. — Borellla carinata^ new species. 



I take pleasure in dedicating this genus to Dr. Alfredo Borelli, of 

 Turin, Ital}"^, who has contributed greatly to our knowledge of South 

 American Orthoptera by careful field work in the Gran Chaco region, 

 furnishing the basis for Doctor Giglio-Tos's exhaustive papers on the 

 Orthoptera of northern Argentina, Paraguay, and southern Bolivia. 



BORELLIA CARINATA, new species. 



Types. — Male and female; Chapada, Matto Grosso, Brazil. June. 

 (H. H. Smith.) [U.S.N.M. No. 9486.] 



Size small; form moderately robust; surface glabrous. Head 

 slightly longer than the pronotum, the occiput ver}" g'ently arcuate 

 but not distinctly elevated; fastigium slightly declivent, the angle 

 rectangulate (male) or distinctl}^ obtuse-angulate, the extension 

 beyond the interocular region being slightly (male) or very consider- 

 ably (female) less than the width of the latter, dorsum of the fastig- 

 ium moderately excavated; lateral foveolaB dorsad, distinctl}^ impressed 

 with the margins well raised and complete, oblong in shape, the length 

 slightly more than twice the width; face moderately retreating, the 

 dorsal section rounded, more so in the female than in the male, which 

 is also the case with the angle of the face, the male having it more 

 marked and less rounded than in the female; frontal costa acute dorsad, 

 regularly expanding ventrad and reaching the clypus, very slightl}^ con- 

 stricted at the ocellus, distinctly but not deeply sulcate in both sexes; 

 eyes subovoid, slightly more acute and slenderer in the male than in 

 the female, ver}' distinctly longer than the infra-ocular sulcus in both 

 sexes; antennte but very slightly exceeding the head and pronotum in 

 length, slightly depressed proximad. Pronotum gently rounded 



