144 JAMES S. HINE Vol. XXII, No. 5 



Chilosia rohusta n. sp. 



Male and female shining black and conspicuously pale pilose all 

 over. Scutellum without bristles which are differentiated from the 

 rather dense covering of pile. Eyes conspicuously long hairy; antenna 

 yellow, arista dark colored, naked; wing yellowish hyaline, somewhat 

 darker along the costa; legs largely black, tibiae partly yellow. Vesti- 

 ture over the whole body conspicuously pale yellowish in color, occa- 

 sionally varying to golden especially in the female. Form robust. 

 Length 9-12 mm. 



Female: Front nearly as wide as either eye, shining black, pale 

 pilose; face shining black concave below the antennae, facial tubercle 

 large and located somewhat nearer the oral margin than the base of 

 the antennse. Antenna yellow, first two segments partially brown, 

 third segment about as long as broad. Femora black, yellow at extreme 

 apex of each, tibiae partially yellow, median third or more of each, 

 brown to black, all the tarsi almost wholly dark colored with short 

 golden pile beneath. Wing yellowish hyaline, darkest in costal region 

 of basal half, veins brown, squamae and halteres pale. 



Male: Colored like the female except the body pile tends toward 

 paler in the specimens studied. Abdomen entirely shining as in the 

 female, and somewhat more slender than in that sex. 



Differs from lasiopthalma as follows : The face is much less produced 

 in both sexes making the distance between the base of the antennas 

 and the apex of the facial tubercle much shorter than in lasiopthalma, 

 the pilosity of the eyes is paler and shorter and the wings are less infus- 

 cated. 



Female type, Kodiak, Alaska, June, 1917. Allotype has 

 the same data. Parotypes, five males and ten females with 

 the same data as the type; seven males and fourteen females, 

 Katmai, Alaska, July, 1917; five males and one female. Snug 

 Harbor, Alaska, June, 1919. 



Type in the Ohio State University Collection. 



Syrphiis atteyiiiatus n. sp. 



Male and female. Face yellow, without a black stripe, lower part of 

 front including the insertion of the antennae yellow, antenna largely 

 reddish, third segment dark above, arista dark, eyes naked, occiput 

 dark in ground color but largely hidden by a covering of yellowish gray 

 pollen. Thorax dull blue black in ground color, scutellum rather bright 

 yellow, entire thorax clothed rather densely with long yellow pile, 

 wings hyaline, costal cells opaque' yellowish; "abdomen black 'with three 

 pairs of spots and apex yellow, 'first pair iof spots on Second segment 

 somewhat smaller than the other 'two p3;irs; tri&,ngular, with the long; 

 side anterior, outer angle produced over the, abdominal margin, second 

 pair of spots on the third segmeiit, oblong, 'slightly concave anteriorly 

 and convex posteriorly, outer angle very narrowly produced but scarcely 



