BrUNER : Soinn AmKKICAN 'rKTRUMD.F,. 113 



or riitjiT which in the f<inncr species arc so ijnmiinciit on the disk of the 

 jironotuni l)ack of the depressed area which lies above the tepmina. 



General color uniformly dull wood-brown, the sides of abdomen, meso- 

 and metasternum, the lower outer third of hind femora and the apex of 

 tibicE and apical half of last tarsal joints dull black. 



Length of body, d^, 7-5 mm.; of pronotum, 10.5 nun.; of hind femora, 

 5 mm.; to tip of pronotum and wings, 11.35 'ii'n- 



Habitat. — A single male specimen l)earing the labels Para, July, col- 

 lecti'd b>' H. II. Smith. Carnegie Museum, Pittsburgh. 



Otumba marcapata Hancock. 

 Otumha marcapata Hancock, Genera Insectorum, fasc. 48, 1906, 44. 



Habitat. — Marcapata, Peru. In the present collection are a number of 

 specimens from both Para and Chapada, Brazil. Other specimens of the 

 species have been examined from near Cerro de Pasco, Peru. Carnegie 

 Museum, Pittsburgh. 



Genus Trigonofemora Hancock. 



Trigonofemora H.vncock, Ent. News, XVII, 1906, 89; Genera Insectorum, fasc. 

 48, 1906, 46. 



Trigonofemora fossulatus Hancock. 



Trigonofemora fossulatus H.xncock, Ent. News, XVII, 1906, 89-90; Genera 

 Insectorum, fasc. 48, 1906, 46, pi. 3, fig. 30. 



Habitat. — Peru. Not represented in the material now being reported 

 upon. 



Genus Scabrotettix Hancock. 



Scabrolelli.x Hancock, Genera Insectorum, fasc. 48, 1906, 46. 



The know'n species of this genus, none of which are contained in the 

 present collection, are all South American, and may be separated by the 

 following table, modified from that given by Dr. Hancock {loc. cit.). 



Synopsis of the Species of Scabrotettix. 

 .1. Vertex much wider than one of the eyes; pronotum with the dorsum strongly 

 scabrous, broadly depresso-fossulate behind the shoulders; median carina 

 very low and thin, in profile distinctly unevenly sinuate. 

 b. Posterior angles of the lateral lobes of pronotum very little flattened outwards. 



angulate scabrosus Hancock, 



bb. Posterior angles of the lateral lobes of the pronotum acute. 



c. Smaller (9, 15 mm.); lateral lobes of pronotum strongly and acutely pro- 

 duced outwards; wings reaching the apex of the pronotal process. 



magistralis Brunner. 



