14 c Canadian Arctic Expeditio7i, 1913-18 
Most species of the genus Tipula hold the wings outspread or divaricate in 
a position of rest. Apparently but few hold them folded incumbent over the 
abdomen. Two excellent photographs by Mr. G. H. Wilkins, taken at Bernard 
harbour in July, 1915, show that T. arctica falls in this latter group of species. 
These illustrations show the female fly crawling about over the Arctic vegeta- 
tion, possibly searching for a place in which to oviposit. (Plate VI). 
Tipula hewitti, n. sp. 
General colouration grey; mesonotal praescutiun with three broad brown 
stripes; halteres tipped with yellowish orange; legs with the femora dull brownish 
yellow, broadly tipped with dark brown; wings very indistinctly marked with 
greyish clouds; male hypopygium with the ninth tergite very narrowly notched 
medially, the lateral lobes almost contiguous. 
Male. — Length, 13 mm.; wing, 15 mm. 
Palpi black. Frontal prolongation of the head short, dark grey; nasus 
broad, prominent. Antennae black, the first segment of the scape dusted with 
grey; flagellum broken. Head grey, the disk of the vertex more brownish;, 
vertex produced cephalad between the antennal bases into a flat tongue that is. 
deeply split by a median groove. 
Mesonotum grey, the praescutum with three dark brown stripes, the middle 
one very broad in front, rapidly narrowed to near the suture, indistinctly split 
by a grey median vitta; lobes of the scutum with a linear brown line. Pleura 
grey, the dorso-pleural membrane dull brownish. Halteres brownish yellow, 
the knobs dark brown tipped with dull yellowish orange. Legs with the coxae 
grey; trochanters dark brown; femora dull yellow, the tips broadly dark brown;, 
tibiae and tarsi dark brown. Wings dull grey; the costal and subcostal cells 
more yellowish; stigma brown; a yellowish spot beyond the stigma in cell second 
Ri; indistinct grey clouds along vein Cu; venation: petiole of cell Mi short; 
crossvein m-cu obliterated by the fusion of Cui on M3+4. 
Abdomen dark greyish black, the terminal tergites ringed with paler, 
the lateral margins indistinctly paler. Male hypopygium with the ninth 
tergite (PI. Ill, fig. 36) large, subquadrate, the caudal margin nearly transverse 
with a very narrow median notch, the adjacent lobes slightly produced caudally 
at their inner angle and almost touching one another. Ninth pleurite complete; 
outer pleural appendage (PI. Ill, fig. 30) elongate-oval, the apex broadly 
rounded, the basal two-thirds dusky, the apical third yellowish. Ninth sternite 
with a deep median notch. 
Locality: Holotype, cT, Bernard harbour. Northwest Territories, July 1-14,. 
1916 (F. Johansen). No. 418. 
I take great pleasure in dedicating this species to Dr. C. Gordon Hewitt, 
the Dominion Entomologist, to whom I am indebted for many favours. 
Tipula subpolaris, n. sp. 
Male.— Length, 13-5 mm.; wing, 13-6 mm. 
In most respects very similar to T. hewitti, but the male hypopygium is 
quite different. Unfortunately the type is badly discoloured. The antennae 
(PI. II, fig. 18) have the flagellum black, the individual segments moderately 
elongated, the basal enlargement being about half as long as the rest of the 
segment. Tibial spurs long and slender. Basal abdominal tergites with 
indications of orange on the sides of the median black line. Male hypopygium 
with the ninth tergite (PI. Ill, fig. 38) black, the caudal margin with a broad 
LT-shaped notch. Ninth pleurite complete, black, broadly margined with 
yellowish; outer pleural appendage subelongate, narrowed toward the apex,, 
dusky basally, passing into rather bright yellow beyond. 
