80 BULLETIN 145, UNITED STATES NATIONAL MUSEUM 



narrowed to the tips, which are separately, rather narrowly rounded, 

 and strongly serrulate; sides of abdomen scarcely exposed above; 

 disk slightly flattened, sutural margins strongly elevated posteriorly, 

 with broad, moderately deep, basal depressions, and with an obsolete 

 longitudinal costa on each side ; surface densely, strongly, imbricate- 

 punctate. 



Abdomen beneath obsoletely reticulate, sparsely, finely punctate, 

 becoming more or less transversely rugose on basal segment, and 

 sparsely clothed with short, recumbent, whitish hairs; first and sec- 

 ond segments feebly flattened at middle, and clothed with a longi- 

 tudinal series of long, whitish hairs ; vertical portions of the segments 

 not conspicuously pubescent; pygidium sparsely, coarsely punctate, 

 and without a distinct median carina. Presternum densely, finely 

 punctate, and densely clothed at middle with a longitudinal series of 

 long, fine, erect hairs; prosternal lobe rather broad, moderately de- 

 clivous, and broadly rounded in front ; prosternal process rather nar- 

 row, the sides nearly parallel to behind the coxal cavities, then 

 obliquely narrowed to the apex, which is acute. Posterior coxae with 

 the posterior margin broadly, arcuately emarginate, and the exterior 

 angle rectangular. Tibiae slender, straight, and armed with a short 

 tooth on the inner margin at apex. Posterior tarsi as long as the 

 tibiae, and the first joint nearly as long as the following joints united. 

 Tarsal claws similar on all feet, cleft near the middle, the outer tooth 

 acute at apex, the inner one slightly broader, turned inward, and the 

 tip sometimes touching that of the opposite side. 



Length, 3.75 mm.; width, 0.85 mm. 



Female. — Differs from the male in having the pronotum and front 

 of head aeno-cupreous, the latter slightly more convex, and not 

 densely clothed with long pubescence behind the epistoma; prester- 

 num more sparsely punctured, not densely pubescent at middle, and 

 the prosternal lobe subtruncate or feebly emarginate in front; first 

 two abdominal segments convex at middle, and not clothed with long 

 hairs, and the tibiae unarmed at apex. 



Redescribed from a male and female from central Missouri in the 

 United States National Museum collection. Since the type of this 

 species has been lost, I am designating the male from which the 

 above description was made as the neotype. 



Type locality. — Missouri. 



DISTRIBUTION 



Material examined: 



Illinois : La Grange ( ). 



Massachusetts: Framingham, June 11; North Attleboro, June 21 (C. A. 



Frost). 

 Michigan: Detroit, June (Hubbard and Schwarz). Agricultural College, June 



6 (L. G. Gentner). 



