186 BULLETIN 116, UNITED STATES NATIONAL MUSEUM. 



two of the upper ones large. Hind tarsi wholly black, a little longer 

 than the middle pair. Calypters and halteres yellow, the former with 

 black cilia. 



Wings (fig. 129) grayish, slightly darker in front of the third vein; 

 costa not enlarged at tip of first vein; last section of fourth vein bent 

 a little beyond its basal third; hind margin of wing scarcely indented 

 at tip of fifth vein; anal angle of wing very prominent, with a small 

 lobe extending toward the base of the wing and making the wing of 

 somewhat equal width; there is a shallow sinus between the tips of 

 fifth and sixth veins. 



Female. — First antennal joint yellow with the upper edge black; 

 middle tarsi wholly deep black, contrasting strongly with the wholly 

 yellow tibiae, their first joint not much thickened and with a single 

 bristle above, middle tibiae with one long bristle below, without the 

 opalescent spot at tip on upper surface; face wide, yellowish white; 

 wings with the anal angle prominent as in the male, but without the 

 sinus between the tips of the fifth and sixth veins; they are a little 

 wider and more rounded on the hind margin than they are in the 

 male. 



Redescribed from the single male type specimen in the National 

 Museum, which was taken by Mrs. Slosson at Mount Washington, 

 New Hampshire; several males and 2 females taken at Hopedale and 

 Caribou Island, Labrador, by Packard; and 1 female taken in the 

 White Mountains, New Hampshire. 



The female standing with the type in the United States National 

 Museum collection is probably another species. A female taken at 

 Fort Wrangle, Alaska, with the middle tarsi wholly black has the 

 tips of the middle tibiae blackened, and the first and most of the 

 second antennal joints yellow; the middle tibiae have the single long 

 bristle below, but their basitarsi have no bristle above; it no doubt 

 belongs to still another species. 



r?/pe.— Male, Cat. No. 12766, U.S.N.M. 



No. 130. DOLICHOPUS UXORCULA, new spedes. 



FeTTiaZe.— Length 4.5 mm.; of wing 4 mm. Face wide, grayish or 

 yellowish gray; front green with bronze or blue reflections. Antennae 

 yellow with the apical half of third joint blackish; third joint a little 

 longer than wide, pointed at tip. Lateral and inferior orbital cilia 

 yellowish, about eight of the upper cilia on each side black. 



Thorax green, sometimes with bronze reflections; dorsum dulled 

 with grayish or brownish pollen; pleurae dulled with white pollen. 

 Abdomen green with bronze reflections and a little white pollen on its 

 sides. 



Fore coxae yellow with conspicuous little black hairs on their 

 anterior surface; middle and hind coxae black with their tips narrowly 



