350 THE CANADIAN ENTOMOLOGIST. 



being slightly bowed inwardly and the radial cross-vein outwardly ; 

 the greatest length of the cell R 4 one and two-thirds times the great- 

 est length of the cell R-, ; the legs densely, finely sericeous j the 

 posterior metatarsus slightly shorter than all the following segments 

 together, the second segment twice as long as the third, and the 

 third twice as long as the fourth j the abdomen polished, sericeous ; 

 the saw-guides straight above, uniformly, convexly rounded to a 

 blunt point at apex, the apex and the ventral margin very sparsely 

 setaceous. Length, 6 mm. Habitat : Vancouver, B. C. Received 

 from H. L. Viereck, No. 417 la u data, n. sp. 



11. Hypoclypeal area elevated at middle, the elevated portion much 



longer than broad 12. 



Hypoclypeal area elevated at middle, the elevated portion round, 

 mound-like ; the body black, with all the legs below the knees 

 beneath more or less whitish; the walls of the pantagonal area fairly 

 distinct, somewhat expanded below but not mound-like, forming a 

 distinct frontal crest, broadly interrupted at middle ; area above the 

 frontal crest flattened, decidedly concave in the region of the 

 median ocellus, slightly depressed line-like behind the median 

 ocellus ; the V-shaped furrow wanting ; the median fovea a flat 

 V-shaped area situated below the frontal crest and connecting with 

 the antennal fovea ; the elevated, central portion of the hypoclypeal 

 area round and mound-like ; the large puncture on each side of the 

 front situated just above the enlarged ends of the frontal crest; the 

 postocular area uniformly convex and broader than long ; the front 

 between the eyes and the pentagonal area concave ; the vertical 

 portion of the antennal furrow line like, deep, wider behind, with 

 sloping sides laterally ; the interocular furrow obsolete at middle 

 and slightly marked at sides j the antenna? with distinct segmenta- 

 tion, the first and second segments together three-fifths the length 

 of the third, the third segment twice as long as the fourth, the fourth 

 and fifth subequal, the sixth and seventh subequal and about half as 

 long as the fifth, the eighth and ninth subequal and slightly shorter 

 than the seventh, the ninth straight on each side and obliquely 

 truncate and sharply pointed at apex above ; the thorax polished 

 and densely sericeous ; the wings hyaline, somewhat infuscated 

 behind the stigma, the veins, including the costa and the stigma, 



