240 BULLETIN 14 5, UNITED STATES NATIONAL MUSEUM 



the rugae, and sparsely clothed with short, inconspicuous, white pu- 

 bescence, the pubescence becoming longer and more distinct at sides. 

 Scutellum strongly, transversely carinate, and the surface densely, 

 finely reticulate. 



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

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

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

 arcuately expanded behind middle, then obliquely narrowed to the 

 tips, which are separately rounded, and feebly serrulate; sides of 

 abdomen narrowly exposed above; disk slightly flattened, sutural 

 margins strongly elevated from basal third to apex, and with broad, 

 moderately deep basal depressions; surface finely, densely imbricate- 

 punctate, and sparsely, uniformly clothed with short, recumbent, 

 white pubescence, except in humeral region, the pubescence slightly 

 longer on each elytron near suture, forming an indistinct vitta from 

 basal depression to apex. 



Abdomen beneath finely, sparsely punctate posteriorly, more 

 densely punctate on basal segment, and sparsely clothed with short, 

 recumbent, white pubescence; first and second segments slightly flat- 

 tened, and the first finely, densely rugose at middle; last segment 

 broadly rounded at apex ; vertical portions of segments not conspicu- 

 ously pubescent; pygidium feebly carinate, but the carina not pro- 

 jecting. Prosternum finely, sparsely punctate, and rather densely 

 clothed with long, fine, erect hairs, which extend along middle of 

 body to second abdominal segment; prosternal lobe broad, perpen- 

 dicularly declivous, broadly and rather deeply emarginate in front, 

 forming an obtuse lobe at each side; prosternal process broad, the 

 sides parallel to behind the coxal cavities, then strongly narrowed to 

 the apex, which is acute. Posterior coxae with the posterior margin 

 nearly transversely truncate or feebly sinuate, and the exterior angle 

 rectangular, and not prolonged. Tibiae slender, straight, and the 

 anterior and middle pairs armed with a short tooth on inner margin 

 at apex. Posterior tarsi subequal in length to the tibiae, and the first 

 joint as long as the following three joints united. Tarsal claws 

 similar on all feet, cleft near the middle, the inner tooth broad, much 

 shorter than outer one, and not turned inward. 



Length, 4.5 mm. ; width, 1.125 mm. 



Female. — Differs from the male in having the front of head uni- 

 formly reddish brown, not so deeply depressed behind the epistoma, 

 eyes more strongly convex laterally, and about equally rounded 

 beneath and above; pronotum with the sides nearly parallel from 

 apical angles to basal fourth, then obliquely narrowed to the pos- 

 terior angles, base more transversely truncate, and the anterior 

 median depression not so deep ; prosternum and median part of body 



