Saw-flies 1 1 G 



Sandstone rapids, Coppermine river, Northwest Territories, Arctic Canada. 

 "Collected as larvae 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 

 pretentorinae 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 tfhe 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 caudad of the lateral ocelli, not interrupting the 

 caudal margin of the head; the ocellar furrow distinct but broad and 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 



