Vol. XIJ MACGILLIVRAY— PRIBILOF ISLANDS SAW-FLIES 189 



broad and shallow, continuous, punctiform caudad of lateral 

 ocelli, not interrupted ; ocellar and interocellar furrows wanting ; 

 postocellar area not differentiated from the vertex on each side, 

 caudal portion slightly elevated; frontal crest hardly elevated, 

 not broken ; median fovea shallow, oval, small, distinct ; pentagonal 

 area broadly convexly elevated, including ocellar basin, walls of 

 pentagonal area wanting, lateral portions sloping into antennal 

 furrows; ocellar basin with slight depression adjacent to median 

 ocellus, surface of ocellar basin with slight depression adjacent 

 to median ocellus, surface of ocellar basin and dorsal surface 

 of frontal crest meeting at a different angle ; supraclypeal area 

 not prominent ; antennae with third and fourth segments subequal, 

 the fifth slightly shorter, surface roughened and densely finely 

 setiferous ; mesonotum polished, surface of median and lateral 

 lobes with dense shallow punctures; mesopleurae dull, setiferous; 

 claws cleft, inner ray hardly one-half as long as outer ray ; wings 

 hyaline, costa and stigma pale, veins brownish ; body black with 

 the following parts brownish : labrum, tips of femora, tibiae, 

 tarsi, and last abdominal tergum and sternum. Length 5 mm. 



Holotype, male, No. 823, Mus. Calif. Acad. Sci. ; collected 

 by G. Dallas Hanna, June 30, 1920. 



Type locality, St. George Island, Alaska. 



3. Pontania subatrata MacGillivray, new species 



Male : Head polished, dull, not punctulate ; clypeus narrowly 

 broadly emarginate, emargination rounded, clypeal lobes narrow 

 and angular ; labrum short, broader than long, rounded ; antennal 

 furrows traceable from the pretentorinae to the occiput, very broad 

 ventrad of lateral ocelli, narrower and deeper on dorsal aspect : 

 ocellar and interocellar furrows wanting; postocellar area flat, 

 not limited except by antennal furrows ; frontal crest wanting, 

 not elevated above surrounding surfaces ; median fovea an obscure 

 oval depression, longer than broad ; pentagonal area not dis- 

 tinguishable, sides rounded off to the antennal furrows ; ocellar 

 basin flat to slightly convex, small puncture-like depression adja- 

 cent to the ventral margin of median ocellus ; supraclypeal area 

 not prominent ; antennae with fourth and fifth segments sub- 

 equal, distinctly longer than third, segments roughened, finely 

 setaceous; mesonotum, including lobes and mesoscutellum, 

 polished, shining; claws cleft, inner ray short, about one-half 

 the length of the outer ; wings hyaline, the costa and stigma 

 pale, the veins brownish; body black with the following parts 

 brownish ; the knees, tibiae, and tarsi, all sometimes strongly in- 

 fuscated and nearly black. Length 4 mm. 



