56 BULLETIN 116, UNITED STATES NATIONAL MUSEUM. 



Female. — Face wider and whiter than in the male; wing and anten- 

 nae as in the male, the third joint of the latter being as described by 

 Loew and rather large for a female; fore tarsi plain, fifth joint 

 slightly longer than the fourth, the second and third joints yellowish 

 as in the male; wings as in the male. 



Redescribed from the type specimens, 1 male and 1 female from 

 the Hudson Bay Territory. 



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

 chusetts. 



No. 19. DOLICHOPUS MANICULA, new species. 



Male. — Length, 4-5 mm.; of wing 4-4.25 mm. Face wide, ocher 

 yellow or brownish, a little glistening, in one specimen more grayish. 

 Front shining green with bronze reflections, sometimes altogether 

 bronze colored. Antennae wholly black; third joint only a little 

 longer than wide, somewhat acorn shaped with the arista inserted 

 near the base. Proboscis and palpi black. Orbital cilia wholly black. 



Thorax blackish green or bronze brown ; dorsum dulled with almost 

 invisible brown pollen; pleurae more black with gray pollen. Abdo- 

 men green with coppery reflections. Hypopygium black; its lamellae 

 rather large, somewhat elliptical in outline, whitish or tinged with 

 brown with wide black border which shades into the disk, jagged 

 and bristly at lower apical corner, otherwise fringed with little 

 crooked hairs on upper and apical margins. 



Coxae black, sometimes their tips yellow; anterior pair with white 

 pollen and delicate little pale hairs on the front surface and the usual 

 black bristles at tip. Femora black with their tips conspicuously 

 yellow. Middle and hind femora each with one preapical bristle, the 

 latter ciliated on lower inner edge with stiff black hairs, which are 

 scarcely as long as the width of the femora. Tibiae black; hind 

 tibiae thickened, especially at tip. Fore tarsi (fig. 19a) one and a 

 fourth times as long as their tibiae; first joint black with extreme 

 base and tip yellow, about as long as the three following joints taken 

 together; second and third joints wholly yellowish, third a little 

 shorter than the second; fourth black, slightly compressed, about as 

 long as wide, about three-fourths as long as third; fifth joint black, 

 longer than third, considerably compressed, as wide as long, bilobed 

 at apex, the two lobes subequal; tips of first four joints covered with 

 grayish-yellow pollen, which gives them a grayish color in certain 

 lights. Middle tarsi wholly black, one and a fourth times as long 

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

 tibiae, wholly black. Calypters and halteres yellow, the latter with 

 black cilia. 



Wings (fig. 19) a little tinged with blackish gray; costa not en- 

 larged at tip of first vein; last section of fourth vein bent before its 



