Diptera 47 c 
long hairs dorsally, which exceed in length the diameter of tibise, those on the 
anterior sides less numerous and bristle-like; basal joint of all tarsi with two or 
more of the hairs on dorsum conspicuously stronger than the others, ventral 
surfaces with numerous erect setulae among the hairs. Venation similar to 
that of ursina. 
Female. — Agrees in colour with the male. 
Eyes separated by about twice the distance across posterior ocelli; antennae 
as in the male. Thorax less conspicuously hairy than in male, the dorsum slightly 
brown pruinescent, centrally indistinctly bivitate, between the vittse with two- 
rowed acrostichals; scutellum with eight slender bristles. Abdomen pointed 
apically, the ovipositor very slender. Legs similar to those of male, except that 
the basal joint of hind tarsus is not as thick as tibia, and that the hairs are less 
numerous and more bristly, noticeably so on mid and hind tibise and tarsi, 
^"enation as in male, the wings darker. 
Length, 4-5 mm. 
Type locality: Bernard harbour. Dolphin and Union strait. Northwest 
Territories, July 18, 1915 (F. Johansen). 
A male in the collection lacking abdomen differs slightly from the type, and 
may belong to a different species. / 
Locality: Cockburn point, Dolphin and Union strait. Northwest Territories, 
Canadian Arctic coast, September 5, 1914 (F. Johansen). 
Rhamphomyia herschelli, n. sp. 
Female. — Black, shining. Wings slightly and evenly browned. Halteres 
black. Hairs throughout fuscous. 
Eyes separated by distinctly more than twice the width across posterior 
ocelli; third antennal joint three times as long as its basal width; style one-^ 
third as long as third antennal joint; proboscis 1-5 as long as height of head; 
occiput with numerous hairs. Hairs on dorsum of mesonotum short, confined to 
anterior half of disc, acrostichals two-rowed; scutellum with about ten bristles. 
Abdomen pointed apically; ovipositor very slender. Legs rather stout, basal 
joint of fore and mid tarsi each as thick as tibise at apices; basal joint 
of hind tarsus thicker than hind tibia at apex; mid and hind femora with a 
series of squamulse along the postero-ventral margin; tibial bristles very weak 
and sparse, none nearly equalling diameter of tibise. Vein closing lower portion 
of apex of discal cell very much curved; sixth vein extending to wing margin. 
Length, 5-6 mm. 
Type locality: Herschel island, Yukon Territory, July 29, 1916 (F. Johansen) 
Two specimens. 
This may be the female of erinaciodes, but it does not agree with the male in 
such characters as the very slender tibise and tarsi as, from previous experience, 
I should judge it ought to do if it were the male of that species. 
Rhamphomyia albopilosa Coquillett. 
Rham-phomyia albopilosa Coquillett. Proc. Wash. Acad. Sci., vol. 2, 1900, p. 418. 
What I take to be this species is represented in the collection by two females. 
As the species was originally described from two males, taken at Berg bay, Alaska, 
the female is described herewith. 
Female. — Black, slightly shining, distinctly grey pruinescent, especially on 
pleura and abdomen. Wings slightly and uniformly brownish, veins dark brown. 
Halteres pale yellow. Hairs on thorax, abdomen, aiid coxse and femora pale 
yellow, scutellar bristles, most of the hairs on occiput, and all of those on palpi 
and antennae black; tibial and tarsal bristles and hairs black. 
