248 BULLETIN 14 5, UNITED STATES NATIONAL MUSEUM 



Abdomen beneath sparsely, finely punctate, the punctures connect- 

 ed transversely by sinuate lines, which are coarser on the basal seg- 

 ment, and sparsely clothed with short, recumbent, whitish hairs, the 

 hairs denser and slightly longer at the sides of the last three seg- 

 ments; first segment slightly longitudinally flattened, and clothed 

 with slightly longer, semierect hairs at the middle ; vertical portions 

 of the segments rather densely clothed with long, recumbent, whit- 

 ish hairs ; pygidium sparsely punctate, and feebly, longitudinally car- 

 inate, but the carina not projecting. Presternum finely, densely 

 punctate, and rather densly clothed with long, erect, whitish hairs; 

 prosternal lobe rather narrow, strongly declivous, and subtrunctate 

 in front; prosternal process rather broad, slightly expanded behind 

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

 Tibiae slender, nearly straight, and the anterior and middle pairs 

 armed with a small tooth on inner margin at apex. Posterior tarsi 

 distinctly shorter than tibiae, and the first joint as long as the follow- 

 ing two joints united. Tarsal claws similar on all feet, cleft near 

 the middle, the inner tooth shorter than outer one, and not turned 

 inward. 



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

 er and the lateral margins more parallel to each other; abdomen 

 more broadly exposed above; first abdominal segment convex, and 

 not clothed with longer hairs at middle; pubescence on presternum 

 more recumbent, and the tibiae without a tooth at apex. 



Length, 6.75 mm. ; width, 1.75 mm. 



Type locality. — Meade County, Kans. 



DISTRIBUTION 



Material examined : 



Arizona: Hereford, July 28, 1907 (J. S. Hine). 



Canada (Alberta) : Medicine Hat, June 18-July 15, on Malvastrum coccineum 



(Pursh) Gray (F. C. Carr). 

 Colorado: Trinidad, June 25 (H. F. Wickham). 

 Kansas: Meade and Seward Counties, May 16; "West. Kan."' (E. A. Pope- 



noe). Douglas, Hamilton, and Clarke Counties (F. H. Snow). "Kan. 



Snow" (Knull collection). 

 Montana: Poplar, July 13, 1922 (C. C. Sperry). " Mon." (Knull collection). 

 New Mexico: Mesilla, August 28; Santa Fe, June (T. D. A. Cockerell). 



Lake Burford, June 17, 1918 (A. Wetmore). 

 Texas: Alpine, July 20-22, 4,400-6,000 feet (H. F. Wickham). 

 Wyoming: Medicine Bow, June 23, 6,562 feet (H. F. Wickham). 



Type, allotype, and paratypes. — Cat. No. 41005, U.S.N.M. Para- 

 type* in following collections: H. F. Wickham, C. A. Frost, 

 W. Knaus, F. C. Carr, J. N. Knull, Museum of Comparative Zo- 

 ology, University of Kansas, and the Canadian National Collection 

 at Ottawa. 



