Saw-flies 1 1 g 
Sandstone rapids, Coppermine river, Northwest Territories, Arctic Canada. 
^'Collected as larvse in cocoons in old cerambycid burrows in bark of white 
spruce, February 18, 1915. Imago emerged July, 1915. Breeding Record 
46". F. Johansen, collector. Specimen No. 1370. 
The yellow coxae and the large yellow spot on each mesopleuron will separate 
this species from its nearest relative, truncata Marlatt. 
Pontania subpallida, n. sp. 
Female. — Head polished, the orbits setaceous; the clypeus broadly slightly 
emarginate, almost truncate; the antennal furrows deep and distinct from the 
pretentorinse to the caudal margin of the head which they interrupt, broadest 
between the frontal crest and the lateral ocelli; the ocellar furrow distinct and 
connecting with the antennal furrows and a short broad interocellar furrow; 
the postocellar area short and broad with a deep, linear, mesal furrow interru- 
rupting the caudal margin of the head; the ocellar areas strongly elevated and 
more or less separated from the frontal crest, forming a distinct pentagonal area; 
the frontal crest strongly elevated, its dorsal margin squarely emarginate on the 
meson, interrupted by a broad furrow extending to the elongate deep puncti- 
form median fovea; ocellar basin deep, bounded by sharp walls, extending from 
the frontal crest to the ocellar furrow; the supraclypeal area not strongly 
elevated; antennae long, the third and fourth segments subequal, the fifth 
segment shorter, the surface of the segments setaceous; the pronotum setaceous; 
the median and lateral lobes of the mesonotum, the mesoscutellum, and the 
mesopostscutellum polished, sparsely setaceous; the metascutum finely trans- 
versly striate; the mesopleura, the mesosternum, and the metapleura polished 
and sparsely setaceous; the wings hyaline, the costa and stigma pale, the veins 
brownish; the claws deeply cleft, the inner ray shorter than the outer; the 
abdomen finely granular, very sparsely setaceous; the saw-guides stout, the 
dorsal margin straight and oblique, the ventral margin curved, the distal end 
bluntly pointed, the distal and ventral portions with short fine setae; the cerci 
long and clavate; body black with the following parts pale or yellowish: the 
distal half of the antennae, the mandibles, the labrum the clypeus, the 
supraclypeal area, the frontal crest in part, the inner and posterior orbits, 
the cephalic portion of the postocellar area, the pronotum, the tegulae, a 
broad band on the parapsidial furrows, the mesoscutellum except the caudal 
margin, the legs except irregularly infuscated areas, the ventral aspect of the 
abdomen, the saw-guides, and the three caudal terga. Length, 5.5 mm. 
Bernard harbour, Northwest Territories, July 12, 1915. F. Johansen, 
collector. Specimen No.' 797. 
The strongly elevated ocellar areas, the large uninterrupted frontal crest, 
the deep ocellar basin, and the shallow emargination of the clypeus will serve 
to separate this species from desmodioides Walsh, with which it is similar. 
Pontania trifasciata, n. sp. 
Female. — Head finely closely punctured; the clypeus narrowly roundly 
emarginate, the clypeal lobes broadly rounded; the labrum rounded; the 
antennal furrows deep from the pretentorinae to the dorsal margin of the frontal 
crest, broad and shallow on the- middle of their length, and narrow, deep, con- 
verging, linear depressions cauclad of the lateral ocelli, not interrupting the 
cautlal margin of the head; the ocellar furrow distinct but broad ancl shallow; 
the interocellar furrow deep and expanding toward the median ocellus; the 
ocellar areas not prominent, with a slightly convex surface; the frontal crest 
distinct, deeply interrupted at middle by a linear long deep furrow continuous 
with the median fovea; the supraclypeal area convex, not prominent; the 
