156 BULLETIN 145, UNITED STATES NATIONAL MUSEUM 



truncate in front of scutellum; disk moderately convex, a more or 

 less distinct median depression composed of two parts, sometimes 

 a round depression on each side of middle anteriorly, with broad, 

 moderately deep lateral depressions, and sharply defined prehumeral 

 carinae ; surface obsoletely granulose, densely, rather coarsely, trans- 

 versely rugose, finely, sparsely punctate between the rugae, and 

 sparsely, uniformly clothed with short, whitish hairs. Scutellum 

 rather strongly, transversely carinate, and the surface finely, densely 

 reticulate. 



Elytra slightly wider than pronotum at base, and about equal in 

 width at base and behind middle; sides nearly parallel for a short 

 distance behind base, broadly constricted in front of middle, broadly, 

 arcuately expanded behind middle, then obliquely narrowed to the 

 tips, which are separately, rather narrowly rounded, and coarsely 

 serrulate; sides of abdomen rather broadly exposed above; disk 

 slightly flattened, costae sometimes feebly indicated, sutral margins 

 elevated behind middle, and with broad, deep basal depressions; 

 surface densely, irregularly imbricate-punctate, and sparsely, uni- 

 formly clothed with short, recumbent, whitish hairs, sometimes be- 

 coming denser and forming an obsolete spot on each elytron at 

 middle and apical third. 



Abdomen beneath finely, sparsely punctate at middle, densely punc- 

 tate toward the sides, densely, transversely rugose at sides of basal 

 segments, and clothed with moderately long, recumbent, whitish 

 hairs, which are very sparsely placed on median parts but becoming 

 denser toward the sides ; first segment broadly longitudinally concave 

 at middle, and the bottom of the concavity roughly sculptured; 

 second segment with a smooth, deep depression extending from an- 

 terior margin to near the posterior margin; last segment obtusely 

 rounded, or subtruncate at apex ; vertical portions of segments rather 

 densely but not conspicuously pubescent ; pygidium coarsely punctate, 

 strongly carinate, the carina strongly projecting, and truncate at 

 apex. Prosternum densely rugose, finely punctate, and sparsely, uni- 

 formly clothed with moderately long, semierect, whitish hairs ; pro- 

 sternal lobe broad, moderately declivous, and broadly, feebly emar- 

 ginate in front ; prosternal process broad, the sides parallel to behind 

 the coxal cavities, then obliquely narrowed to the apex, which is acute. 

 Tibiae slender, and the anterior and middle pairs armed with a very 

 small tooth on inner margin at apex. Posterior tarsi shorter than 

 tibiae, and the first joint about as long as the following three joints 

 united. Tarsal claws dissimilar, anterior and middle ones cleft near 

 apex, the teeth nearly equal in length, and the inner one not turned 

 inward ; posterior claws cleft near middle, and the inner tooth much 

 shorter than outer one. Genitalia similar to those of anxius Gory. 



Length, 7.5 mm. ; width, 2 mm. 



