8 G Canadian Arctic Expedition, 1913-18 
Pontania lorata, n. sp. 
Female. — Head with the dorsal portion finely granular and the ventral 
portion polished; the clypeus short, broadly roundly emarginate, the clypeal 
lobes distinct, broadly rounded; the supraclypeal area strongly convex, the 
erestal furrow wanting; the frontal crest swollen, continuous with the frontal 
area; median fovea a deep oval pit continuous on the dorsal side with a short 
shallow linear impression interrupting the ventral portion of the frontal crest; 
the antennal furrows distinct, broad' and bounding a strongly elevated frontal 
area with a slightly concave ocellar basin; the frontal ridges wanting; the 
vertical furrows punctiform; the ocellar and interocellar furrows wanting; 
antennae wanting beyond the sixth segment, the third and fourth and fifth 
segments subequal in length; the collar granular and setaceous; the median 
and lateral lobes of the mesonotum, the mesoscutellum, the mesopostscutellum, 
and the metascutum polished and setaceous; the mesopleura, mesosternum, 
and metapleura polished, the former sparsely setaceous; wings hyaline, veins 
brownish, the stigma pale, the free part of R^ and M^ interstitial in one wing 
and not in the other; claws unevenly cleft, the outer ray long and slender, the 
inner short and not over one-third the length of the outer; the abdomen finely 
granular and sparsely setaceous; the saw-guides broad and bluntly rounded 
on the ventral margin and distal end, not tapering, the dorsal margin convex, 
the distal portion with a distinct scopa; the cerci long and setaceous, reaching 
beyond the middle of the saw-guides; colour black, the legs beyond the femora 
whitish, the distal segments of the mesotarsi and metatarsi infuscated. Length, 
4.5 mm. 
Male. — The male differs from the female in having the frontal crest 
completely interrupted, the ocellar and interocellar furrows faintly indicated, 
the antennae longer and more slender but with segments three and four subequal; 
the procidentia short, broad, and bluntly rounded. Length, 4 mm. 
Herschel island, Yukon Territory. Larvae collected in galls of creeping 
willow Salix arctica. August 13, 1914. Imagines emerged July, 1915. 
F. Johansen, collector. Female No. 265; males Nos. 255, 258, 260. 
The smaller size and the lack of a erestal furrow readily separates this 
species from airata to which it is quite similar in general appearance. The 
specimens described under this name were received as a part of Breeding Record 
No. 35. The difference in head structures and the shape of the saw-guides 
makes their inclusion with the preceding species impossible. 
Pontania delicatula, n. sp. 
Male. — Head with the posterior orbits and postocellar area finely granular, 
the inner orbits polished for the most part, and the frontal area slightly rough- 
ened; the clypeus narrowly, shallowly, semicircularly emarginate, the clypeal 
lobes broad and truncate; the labrum tran verse and truncate; antennal furrows 
deep between the pretentorinae and the frontal crest, broad and shallow and 
almost wanting on the cephalic aspect, terminating in a punctiform depression 
caudad of the lateral ocelli; the ocellar furrow wanting and the interocellar 
furrow a short linear depression; the postocellar ai-ea short and broad, not 
elevated; the ocellar area only slightly elevated, continuous with the frontal 
crest, the frontal crest strongly convex and interrupted on the meson by a deep 
furrow continuous with a deep concave ocellar basin which extends to the 
median ocellus; the median fovea a distinct punctiform depression, distinctly 
separated from the furrow interrupting the frontal crest; the supraclypeal area 
strongly convex and roughened; the antennae short, segments three and four 
subequal, the segments roughened and densely finely setaceous; the pronotum 
roughened like the head; the median and lateral lobes of the mesonotum finely 
