96 BULLETIN 116, UNITED STATES NATIONAL MUSEUM. 



bristles. Fore tarsi brownish yellow, as long as their tibiae, the 

 basitarsi as long as the remaining four joints taken together, fourth 

 joint very slightly shorter than the fifth. Middle tarsi one and a 

 fourth times as long as their tibiae, black from the tip of the first 

 joint. Hind tarsi one and a third times as long as their tibiae, 

 wholly deep black. Calypters and halteres yellow, the cilia of the 

 former black (Doctor Wheeler states in his description that these 

 cilia are yellow, but our specimens agree with his description in all 

 other points and as there are some long yellow hairs back of the black 

 cilia he probably saw these, the true cilia having been broken off, 

 or perhaps there are specimens with the cilia all yellowish). 



Wii gs (fig. 53) grayish; costa only a little enlarged at tip of first 

 vein; last section of fourth vein bent at its basal third; hind margin 

 of wing i^ot or scarcely indented at tip of fifth vein, evenly rounded, 

 the anal angle being rounded, not prominent. 



Female. — I have no female which seems to be long here, although 

 two of those I have placed with the next species (remu^) were taken 

 with males of this species, still as they have two preapical bristles 

 on the middle and hind femora they seem to belong with remus the 

 male of which has two bristles while incongruus only has one, this 

 should be the best character to separate the females by. 



Redescribed from 5 males; 1 taken at Golden, New York, May 31; 

 1 at Ellis, New York, June 13; and 2 at Protection, New York, 

 June 16; 1 at South Wales, New York, June 23. 



Type. — In American Museum of Natural History. 



No. 54. DOLICHOPUS REMUS, new species. 



Male. — Length 4 mm.; of wing the same. Face narrow, white, a 

 little wider and more yellowish on upper part. ■ Front bright shining 

 green. Antennae wholly black; third joint large, nearly three times 

 as long as wide, somewhat elliptical in outline, but nearly straight 

 above and rounded below, pointed at tip. Orbital cilia wholly 

 black. 



Thorax dark green, very shining, with more or less coppery reflec- 

 tions which form vittae on the anterior edge of the dorsum, where 

 there is a little white pollen; pleurae more blackish with grayish 

 pollen. Abdomen dark shining green with black incisures and cop- 

 pery reflections. Hypopygiuni black; its lamellae (fig. 54ffi) very 

 small, oval, whitish with a black border, fringed witli black hairs, 

 not jagged at tip. 



Coxae black with yellow tips: anterior pair with white pollen and 

 little black hairs on the front surface. Fore femora with basal two 

 thirds black; middle femora yellow with about basal fourth blackish; 

 hmd femora black with the tip narrowly yellow, nearly bare below. 

 Middle and hind femora each with two preapical bristles, placed one 



