232 MISIC. PUBLICATION 4 7 0, U. S. DEPT. OF AGRICULTURE 



emarginate in front, broadly, transversely truncate on each side. Antenna 

 piceous, slightly bronzy on basal segments, not distinctly narrowed to apex ; 

 intermediate segments triangular, wider than long; third segment subequal in 

 length to the following two segments united. 



Pronotum three-fifths wider than long, slightly narrower at apex than at 

 base, widest at apical fourth ; sides strongly converging near apices, obliquely 

 converging from apical fourth to posterior angles; anterior margin slightly 

 sinuate, with a vague, broadly rounded, median lobe; base broadly, arcuately 

 emarginate on each side, median lobe broadly rounded, subtruncate in front of 

 scutellum ; disk rather strongly convex, uneven, with numerous irregular, smooth 

 callosities (four rather distinct ones arranged transversely in front of middle), 

 without a median depression, but with a smooth median line posteriorly, separat- 

 ing two rather broad, distinct, basal depressions, which are limited laterally 

 by a short, smooth, longitudinal elevation; surface rather coarsely, irregularly 

 punctate between smooth elevations, clothed with a few fine, moderately long, 

 erect hairs, especially at sides. Scutellum small, triangular. 



Elytra at base slightly wider than pronotum at middle, nearly twice as long 

 as wide; sides nearly parallel (slightly concave behind humeral angles) to 

 apical third, then arcuately converging to tips, which are separately, rather 

 broadly rounded; lateral margins coarsely serrate; basal depressions broad 

 and deep; humeral depressions broad and shallow; surface glabrous, finely, 

 densely, irregularly punctate between costae. Each elytron with four narrow, 

 smooth, longitudinal costae; first entire, nearly parallel with sutural margin, 

 extending from base to apex ; second extending from apex to basal fovea, slightly 

 interrupted at middle and apical two-fifths by vaguely defined depressions; third 

 short ; fourth not so distinct, following outline of lateral margin. 



Abdomen beneath coarsely, densely fossulate-punctate, obscurely, transversely 

 rugose, densely clothed with long, recumbent, whitish hairs, which are denser 

 at sides, with small, round, slightly elevated, smooth, lateral callosities, intervals 

 finely, densely granulose ; last visible sternite broadly subtruncate at apex, with- 

 out a distinct submarginal ridge, lateral margins not distinctly serrate; eighth 

 tergite coarsely, confluently punctate, broadly rounded at apex. Prosternum 

 coarsely punctate, transversely rugose, sparsely clothed with long, semierect, 

 whitish hairs ; anterior margin truncate, without a median lobe. Anterior femur 

 with a long, acutely triangular tooth, which is coarsely dentate, on outer margin. 

 Anterior tibia rather strongly arcuate, unarmed at apex; middle and posterior 

 tibiae straight. 



Length 11 mm., width 4.4 mm. 



Redescribed from the female type in the Academy of Natural Sci- 

 ences of Philadelphia. 



Male. — Differing from the female in having the last visible abdominal sternite 

 broadly, shallowly emarginate at apex, and the anterior tibia armed with a 

 rounded dilation near apex. 



Type locality. — Alamogordo, N. Mex. 



Host. — Unknown. 



Fall described this species from a single female collected by H. L. 

 Viereck. The only other specimen examined by the writer is a male 

 collected June 14, 1935, in Brewster County, Tex., by J. N. Knull. 

 This specimen was compared with the type, from which it differs 

 slightly in having the clypeus a little more broadly emarginate in 

 front, and the lateral margins of the last visible abdominal sternite 

 slightly serrate. This species is retained with the species having the 

 lateral margins of the last visible abdominal sternite entire, but should 

 additional material show that these margins are serrate, the species 

 can be easily separated from the other species having serrate margins 

 by the shape of the clypeus. 



