306 BULLETIN" 14 5, UNITED STATES NATIONAL MUSEUM 



and with feebly indicated prehumeral carinae; surface coarsely, 

 closely, transversely rugose, finely, sparsely punctate between the., 

 rugae, and without distinct pubescence, except for a few hairs in the 

 lateral depressions. Scutellum vaguely, transversely carinate, and 

 the surface obsoletely reticulate. 



Elytra as wide as pronotum at base, and about equal in width at 

 base and behind middle; sides nearly parallel for a short distance 

 behind base, broadly, arcuately constricted near middle, feebly, 

 broadly expanded behind middle, then obliquely narrowed to the 

 tips, which are separately, broadly rounded, and strongly serrulate; 

 sides of abdomen narrowly exposed above; disk slightly flattened, 

 sutural margins feebly elevated posteriorly, and with broad, shallow, 

 basal depressions, surface rather densely, coarsely, imbricate-punc- 

 tate, and clothed with a few obsolete whitish hairs, which are only 

 visible with a high-power lens. 



Abdomen beneath finely, irregularly, transversely striolate, finely 

 sparsely punctate, and sparsely clothed with short, inconspicuous, 

 whitish hairs; first two segments convex at middle; last segment 

 broadly rounded at apex ; vertical portions of the segments not con- 

 spicuously pubescent; pygidium feebly, longitudinally carinate, but 

 the carina not projecting posteriorly. Prosternum coarsely, trans- 

 versely rugose, and sparsely clothed with short, inconspicuous hairs ; 

 prosternal lobe broad, slightly declivous, and broadly rounded in 

 front ; prosternal process very broad, the sides nearly parallel to 

 apex, which is truncate, with a distinct median tooth. Posterior 

 coxae with the posterior margin strongly, arcuately emarginate, 

 and the exterior angle acute and more or less prolonged. Tibiae 

 slender and unarmed at apex. Posterior tarsi as long as the tibiae, 

 and the first joint not quite as long as the following three joints 

 united. Tarsal claws similar on all feet, cleft near the base, the 

 outer tooth long and acute, the inner tooth very broad, about one-half 

 as long as outer one, and not turned inward. 



Length, 4.75 mm.; width, 1.2 mm. 



Male. — Differs from the female in having the prosternum densely, 

 finely punctate, and densely clothed with long, erect, whitish 

 pubescence, which is broadly extended along median part of body 

 to the abdomen ; first and second abdominal segments broadly, longi- 

 tudinally concave, and the concavity densely clothed with long, 

 semierect, whitish hairs, which point obliquely backward toward the 

 median line of the concavity; posterior tarsi distinctly longer than 

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

 united, and the anterior and middle tibiae armed with a short, 

 straight tooth on the inner margin at apex. 



Redescribed from the female type (specimen No. 1) in the Museum 

 of Comparative Zoology. 



