222 BULLETIN 116, UNITED STATES NATIONAL MUSEUM. 



black. Middle tibiae with two bristles below, their basitarsi without 

 a bristle above. 



Redescribed from many males and females. J. M. Aldrich has 

 specimens from Moscow, Idaho, Aug. 23, 24 ; Potlatch, Idaho, June 20 ; 

 Viola and Juliaetta, Idaho; CorvaUis, Oregon, Aug. 15; Beaver 

 Creek, Newport, Oregon, Aug. 13. I have specimens from Berkeley, 

 California, Sept. 16; Samoa Beach, Humboldt County, California, 

 June IS. A. L. Melander has taken specimens at Pullman, Wash- 

 ington, June-Sept.; Tacoma, Washington, Aug. 27; Chehalis, 

 Washington, Aug. 25; others are from Cochise County, Arizona, 

 Aug. 3 (3,750 feet elevation); Claton, British Columbia, Aug. 9; 

 Abbotsford, British Columbia, Aug. 9. 



Type locality. — Sonoma County, California. Aldrich reports it 

 from California and Washington; Wheeler from Idaho, Washington, 

 Wyoming; Melander and Brues from California, Washington, Wyo- 

 ming, Idaho, and Vancouver Island. 



Tiipe. — In the Museum of Comparative Zoology, Cambridge, Massa- 

 chusetts. 



No. 160. DOLICHOPUS CONSANGUINEUS Wheeler. 



Hygroceleuthus consanguineus Wheeler, Proc. Calif. Acad. Sci., vol. 2, 1899, p. 5, 

 pi. 1, fig. 5-7. — Melander and Brues, Biol. Bull., vol. 1, p. 131, figs. 



Male. — ^Length 5.5-7 mm.; of wing 5-6 mm. Face wide, pale 

 yellowish white, in some specimens the face has one or two ocher 

 yellow longitudinal bands which are visible in certain lights only. 

 Front dark shining green. Antennae black, with a large, smooth, 

 yellow protuberance on inner side of first joint and a small one on 

 second joint; first joint long with bristly hairs; third joint a little 

 longer than wide, conical in outline; arista thick and densely pubes- 

 cent. Orbital cilia black with 4-10 orange yeUow cilia, from near the 

 middle of the eye downward the lower cilia are much flattened. 



Thorax dark shining green, with more or less bronze or coppery 

 reflections; pleurae duUed with white poUen. Abdomen dark 

 shining green with coppery reflections; and white pollen on its sides. 

 Hypopygium mostly metallic green, like the abdomen; its lamellae of 

 moderate size, oval, whitish, sometimes tinged with brown, with 

 narrow black border along the apical edge, a little jagged and bristly 

 at apex, fringed above with black hairs. 



Fore coxae yellow with a broad green stripe on outer posterior edge, 

 their anterior surface covered with black hairs, which are sometimes 

 quite long. Middle and hind coxae black with narrow yellow tips. 

 Femora and tibiae yellow. Middle femora with one preapical 

 bristle; posterior pair with a row of bristles of increasing length, 

 which ends in the usual preapical bristle. Posterior tibiae a little 

 thickened and compressed, with a glabrous groove on inner surface; 

 the usual glabrous stripe on upper surface quite distinct. Fore tarsi 



