Mar., '06] ENTOMOLOGICAL NEWS. 89 



margin abbreviated but distinct ; lateral carinas of the posterior process 

 very thin, lightly compressed, and minutely serrate, the apex of pro- 

 notum produced, little upturned and extended backward to apex of pos- 

 terior femora. 

 Total length of body 9 mm. ; pronotum 8 mm. ; posterior femora 5 mm. 



One female from Marcapata, Peru, South America. In my 



collection. 



TRIGONOFEMORA gen. nov. 



Characters : Body coarsely granulose, rugose and spar- 

 ingly tuberculose. Head slightly compresso-elevated ; face 

 subvertical ; antennae inserted below the ventro-anterior bor- 

 der of the eyes ; ocelli placed between the lower third of eyes, 

 barely visible in profile view ; eyes small, higher than the 

 dorsum and scarcely at all more elevated than the vertex ; 

 vertex anteriorly truncate, broader than one of the eyes, mid- 

 dle lightly carinate forward, on either side between the eyes 

 foveate ; occiput strongly sloping backward ; frontal costa 

 evenly divergent forward but the rami moderately separated. 

 Pronotum distinctly flattened on the dorsum, truncate an- 

 teriorly, posteriorly subulate ; median carina of pronotum 

 behind the anterior border often compresso-elevated ; humeral 

 angles laterally prominent, carinate, and obtuse angulate ; 

 the posterior angles of the lateral lobes rather narrowly sub- 

 rectangularly truncate, the inferior margins very little turned 

 outward ; elytral sinus above shallow, the inferior sinus deeply 

 and angularly incised. Elytra oblong ; wings perfectly ex- 

 plicate. Femora little compressed, elongate, carinae of an- 

 terior femora triquetrous, the external pagina with the oblique 

 rugae strongly prominent, the carina of the outer face below 

 very pronounced ; femoral and genicular denticles very strongly 

 triangularly produced. First and third articles of the pos- 

 terior tarsi equal in length. 



Trigonofemora fossulatus sp. nov.— Ferruginous above, legs very light 

 green, often mottled below with black. Vertex much wider than one of 

 the eyes, front border truncate and barely advanced so far as the eyes, 

 the anterior carinse outwardly on each side abruptly curved backward, 

 between the eyes on each side foveate, occiput declivous posteriorly. 

 Pronotum with the dorsum distinctly flattened, strongly widened between 

 the shoulders ; just behind the shoulders deeply bifossulate, posteriorly 

 rugose-scabrous interspersed with tubercles ; median carina of pronotum 



