286 Annals Entomological Society of America [Vol. VI, 



with a double row of bristles, the upper of which are directed 

 forward and slightly upward, and continue to lowest level of eyes 

 anteriorly, vibrissa stronger than other bristles, incurved, situated 

 lower than anterior bristles on ridge above; antennae rather small, 

 second joint with short bristles in addition to the dorsal one, and some 

 on under side, third joint rounded except on dorsal surface at apex, 

 where it is truncate; arista but little swollen at base, thickly but shortly 

 pubescent, and shorter than from its base to anterior ocellus; proboscis 

 brownish; palpi black, of moderate size, normal in shape, rather dis- 

 tinctly bristled. Mesonotimi with three pairs of dorso-central bristles, 

 and one or two long hairs anterior to the third pair; in addition to 

 these the disk is covered with numerous short hairs. (The large pins 

 used for transfixing the two specimens have practically destroyed the 

 thorax and make it very nearly impossible to judge the nature of the 

 chaetotaxy, and it may be that in some cases the species has four instead 

 of three pairs of dorso-centrals) . Scutellum four bristled, disk bare; 

 squamae whitish, fringe pale. Abdomen glossy black; all segments 

 with numerous hairs, those on apex of sixth segment bristle-like, base 

 of ovipositor glossy black, longer than fifth segment. Legs entirely 

 black, the mid tibiae with the pair of posterior bristles present. Wings 

 grayish, veins brown, costa carried indistinctly beyond third vein, but 

 falling much short of fourth; inner cross vein at end of first vein, outer 

 cross vein at slightly beyond center of wing, and at nearly twice its own 

 length from inner cross vein; second section of fourth vein shorter 

 than first, and rather more than one-fourth as long as last section; last 

 section of fifth three-fifths as long as the preceding section. 



Halteres white. 



Length, 3 mm. 



Type: Cat. No. 15565, U. S. N. M. 



Locality: Juneau, Alaska, July 25, 1899, (Kincaid). 



The paratype which is in rather poor condition differs 

 slightly from the type in neuration, having the outer sections 

 of the veins comparatively longer than in the type. 



The species is named in honor of Prof. Trevor Kincaid, 

 who collected it. 



This is the species recorded by Coquillett as A . neptis Loew, 

 (Proc. Wash. Acad. Sci. Vol. 2, 1900, p. 463), occuring in 

 Alaska. It is very close to the species described by Schiner 

 (Fauna Austriaca, Vol. 2, 1864, p. 303) as nigripes Meigen. 

 He misidentified Meigen' s species which has the costa to the 

 fourth vein. Afterwards -Rondani placed Schiner's species in 

 Domomyza and retained the specific name as nigripes Schiner 

 (nee Meigen). This generic division has been repudiated by 

 various writers, and as no other valid name has been given to 

 this species it must be renamed. (See Addenda.) 



