1944 ] 
45 
Studies on Syrphid Flies 
third longitudinal vein but growing fainter apically, extending 
broadly along both sides of the second longitudinal vein all the 
way to the costa and filling the stigmal cell. 
Holotype: No. 23799, one female. Nikko, Japan, July 10, 1931. 
L. Grissett, collector. 
