Diptera 17 , 



long hairs dorsally, which exceed in length the diameter of tibiae, those on the 

 anterior sides less numerous and bristle-like; basal joint of all tarsi with two 

 more of the hairs on dorsum conspicuously stronger than the others, ventral 

 surfaces with numerous erect setulse among the hairs. Venation aimilar to 

 that of ursina. 



Female. — Agrees in colour with the male. 



Eyes separated by about twice the distance across posterior ocelli; antennas 

 as in the male. Thorax less conspicuously hairy than in male, the dorsum Blightly 

 brown pruinescent, centrally indistinctly bivitate, between the vittae with two- 

 rowed acrostichals; scutelluni 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 thai the hairs are . 

 numerous and more bristly, noticeably so on mid and hind tibiae and tarsi. 

 Venation as in male, the wings darker. 



Length, 4-5 mm. 



Type locality: Bernard harbour, Dolphin and Union strait, Northwi 

 Territories, July 18, 1915 (F. Johanscn). 



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 Territorii 

 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 acid— 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 heighl of head; 

 occiput with numerous hairs. Hairs on dorsum of mesonotum short . confined to 

 anterior half of disc, acrostichals two-rowed; scutelluni with about ten bristli 

 Abdomen pointed apically; ovipositor very slender. Legs rather -tout. l>a>al 

 joint of fore and mid tarsi each as thick as tibia 1 at apices; basal joint 

 of hind tarsus thicker than hind tibia at apex; mid and hind femora with a 

 series of squamuke along the postero-ventral margin; tibial bristles very weak 

 and sparse, none nearly equalling diameter of tibiae. Vein closing lower portion 

 of apex of discal cell very much curved; sixth vein extending to wing margin. 



Length, 5-6 mm. 



Type locality: Herschcl island. Yukon Territory, July 29, 1916 F. Johansen 

 Two specimens. 



This may be the female of crinaciodes, hut it does not agree with the male in 

 such characters as the very slender tibiae and tarsi :e-. from previous experience. 

 I should judge it ought to do it' it were the male of that species. 



Rhamphomyia albopilosa Coquillett. 



Rhamphomyia albopilosa Coquillett. Tree. Wash. Acad. Sec, vol.2, 1900, p. Us. 



What I take to be this species is represented in the colled ion by t wo femalt 

 As the species was originally described from t wo male.-, 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 brow oiah, vein- dark brown. 

 Halteres pale yellow. Hairs on thorax, abdomen, and coxa' and femora pale 



yellow, scuteilar bristles, most of the hairs cciput, and all of those on palpi 



and antennae black; tibial and tarsal bristle- and hairs black. 



