252 BULLETIN 14 5, UNITED STATES NATIONAL MUSEUM 



arcuately expanded behind middle, then obliquely narrowed to the 

 tips, which are separately, rather broadly rounded and feebly ser- 

 rulate; sides of abdomen broadly exposed above; disk feebly flat- 

 tened, sutural margins elevated from basal third to apex, and with 

 broad, shallow basal depressions ; surface coarsely, densely imbricate- 

 punctate, sparsely clothed posteriorly with short, inconspicuous, 

 white hairs, and each elytron ornamented with a vitta of sparsely 

 placed, short, recumbent, whitish hairs extending along suture from 

 basal depression to apex. 



Abdomen beneath finely, sparsely punctate, the punctures con- 

 nected transversely by fine, sinuate lines, and moderately clothed 

 with recumbent, whitish pubescence; first and second segments 

 slightly flattened at middle ; last segment broadly rounded at apex ; 

 vertical portions of the segments rather densely clothed with long, 

 recumbent whitish pubescence; pygidium sparsely punctate, feebly 

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

 punctate, and densely clothed with long, erect, whitish hairs, which 

 extend along middle of body to second abdominal segment; pro- 

 sternal lobe broad, strongly declivous, and broadly truncate in front ; 

 prosternal process broad, the sides slightly expanded behind the coxal 

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

 slender, and the anterior and middle pairs armed with a short tooth 

 on inner margin at apex. Posterior tarsi distinctly shorter than 

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

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

 broad, shorter than outer one, and not turned inward. 



Length, 5.5 mm. ; width, 1.4 mm. 



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

 slightly wider, the lateral margins feebly expanded from bottom to 

 top, and the pubescence shorter and sparser; first and second ab- 

 dominal segments convex, and without longer pubescence at middle ; 

 pubescence on prosternum shorter and recumbent, and the tibiae 

 unarmed at apex. 



Redescribed from the male type in the collection of H. C. Fall. 



Type locality. — Pomona, Calif.. 



DISTRIBUTION 



Arizona: Flagstaff, July 5 (Barber and Schwarz). 



California: Pomona, June 25, 1895 (male type) ; Pasadena. June (H. C. Fall). 

 Poway ( — — ■). Los Angeles County, May (D. W. Coquillett). Arroya 

 Seco Canyon, San Gabriel Mountains. Los Angeles County, July 26, 1912 

 ( ). Bridgeport, 6,465 feet, July 12-15 (H. F. Wiekbam). 



Variations.— The color above varies from reddish cupreous to 

 bronzy brown; beneath from bronzy green to cupreous, and the 

 pubescence is more yellowish in some specimens than in others. In 



