216 BULLETIN 116, UNITED STATES NATIONAL MUSEUM. 



last section of fourth vein a little bent near its middle; hind margin 

 of wing a little indented at tip of fifth vein, deeply hollowed before 

 the tip of sixth vein and again between the sixth vein and the ana 

 angle, so as to form two prominent lobes, one at the tip of sixth 

 vein and one at anal angle. 



Female. — Face wide, silvery white; fore tarsi plain, infuscated 

 from the tip of the first joint, which is about as long as the three 

 following joints together; fifth longer than fourth; hairs on the 

 anterior surface of the fore coxae yellow, as in the male; hind tibiae 

 a little tliicker than the others but not swollen in the middle as 

 in the male; wings (fig. 1556) with hind margin rather evenly rounded, 

 still with just a little lobe at tip of sixth vein. 



Redescribed from many specimens from the following locations: 

 Lafa3^ette, Indiana, June 2-26; Brookings and Erwin, South Dakota 

 (Aldrich), Jmie; Agricultural College, Michigan; Milwaukee, Wiscon- 

 sin, June 28 (Wheeler) ; Hagerman, Idaho, July 1 (Aldrich) ; Kamiac 

 Butte, Washington (Melander); Chicago, Illinois, June 6; Colorado, 

 Erie County, New York, June 9-24; Elba, New York, June 25; 

 Olcott, New York, July 4; Dauphin, Manitoba, Canada, June 22; 

 Ottawa, Canada, July 2. I have taken it in the following places 

 in Ontario, Canada: Fort Erie, Ridgeway, Toronto, Bond Lake, 

 Chatham, and Kearney, June 17- July 24. 



Type locality .—^n^\&\i River, Canada. Aldrich reports it from 

 South Dakota and IVIichigan; Coquillett from Kukak Bay, Alaska; 

 Johnson, Insects of New Jersey, reports it from Delaware Water Gap, 

 New Jersey, July 15. 



Type. — In Museum of Comparative Zoology, Cambridge, Massachu- 

 setts. 



No. 156. DOLICHOPUS OMNIVAGUS, new species. 



Male. — ^Length 5.5-6.5 mm.; of mng, 5-5.5 mm. Face rather 

 wide, golden yellow, a little more white below. Front green with 

 bronze reflections. First antennal joint yellow, second partly, 

 sometimes mostly, yellow, especially on inner side; third black, 

 about as wide as long, somewhat triangular, pointed at tip. Lateral 

 and inferior orbital cilia yellow, about six of the upper cilia on each 

 side black. 



Thorax green, usually with bronze reflections; pleurae dulled with 

 white pollen. Abdomen green with bronze and blue reflections; the 

 white pollen on its sides abmidant and extending upon the dorsum. 

 Hypopygium black; its lamellae large, about two and a half times 

 as long as wide, somewhat elliptical, yellowish wliite with a rather 

 mde black border on apical margin, which is jagged and bristly, 

 fringed above with rather long brown hairs. 



Fore coxae yellow, their anterior surface covered with little black 

 and delicate yellow hairs; sometimes there are more yellow than 



