132 BULLETIN 116, UNITED STATES NATIONAL MUSEUM. 



margins and with black hairs. Legs yellow, fore coxae slightly infuscated at bases, 

 mid and hind pairs black; apices of hind tibiae, apices of basal three, and all of apical- 

 two, joints of fore tarsi, all but base of mid tarsi, and entire hind tarsi fuscous. Wings 

 clear, veins dark brown. Halteres yellow. 



Eyes hairy; antennae not elongated, third joint pointed, shorter than high (pi. 8, fig. 

 8); arista with second joint much elongated, third densely pubescent; face parallel- 

 sided, about one-sixth the head-width at its middle, not descending to lowest level of 

 eyes. Scutellum with two strong bristles and two weak hairs. Hypopygial lamella 

 (fig. 86) as in pi. vii, fig. 9. Fore coxae with short black hairs, and a few bristles near 

 apex; fore tibia with three to four antero-dorsal, two postero-dorsal, and three to 

 four posterior bristles; fourth jomt of fore tarsi dilated from base to apex, fifth very 

 much broadened, its width about equal to its length; mid tibia with one ventral, two 

 to three an tero- ventral, four to five antero-dorsal, and five to six posterior bristles; 

 mid tarsi simple, with a few short bristles on apical half of basal joint, one of which 

 on dorsal surface is conspicuous; hind femora vrith inconspicuous black hairs on 

 apical portion of postero- ventral surface; hind tibiae with short regular hairs on basal 

 two-thirds of antero-ventral surface and one long bristle beyond these, antero-and pos- 

 ero-dorsal surfaces each with about eight long bristles; postero-dorsal surface with a 

 slit at apex which runs forward on to dorsum; posterior surface densely black setulose 

 on apical half; basal joint of hind tarsi with about eight bristles in two irregular series. 

 Curve of fourth vein distinct but not abrupt; apices of third and fourth veins sub- 

 parallel; costa not noticeably swollen at apex of first vein. 



Length, 5.25 mm. 



Type locality: Bernard Harbour, Dolphin and Union Strait, Northwest Territories, 

 July 10, 1916 (F. Johansen). 



This species is most closely allied to brevipennis Meigen, but differs in having the 

 hind femora without long pale hairs on ventral surface. 



This is a copy of the original description by J. R. Malloch. I have 

 not seen the species. 



Type. — In the Canadian National Collection, Ottawa. 



No. 87. DOLICHOPUS ORNATIPENNIS, new species. 



2lale. — Length, 4.5 mm.; of wing the same. Face wide, yellowish 

 gray. Front blue-green, shining. Antennae black; lower edge of 

 first j oint narrowly yellowish ; third joint about as long as wide, conical 

 in outline, still a little rounded at tip. Orbital cilia wholly black. 



Thorax green with coppery reflections; front of the dorsum dulled 

 with gray pollen, pleurae with white pollen. Abdomen green with 

 coppery reflections; the white pollen on its sides abundant and 

 extending upon the dorsum. Hypopygimn black; its lamellae 

 (fig. 87a) of moderate size, somewhat oval, a little longer than wide, 

 pale brownish with a narrow black border on upper, apical, and lower 

 edges, jagged and bristly on apical margin, fringed with black hairs 

 above. 



Fore coxae yellow with a conspicuous black spot at base on outer 

 side, their anterior surface covered with black hairs. Middle and hind 

 coxae black with yellow tips. Femora and tibiae yellow. Middle 

 and hind femora each with one preapical bristle, the latter without 

 cilia below, the little black hairs on their sides descending to the lower 



