﻿SOME ALASKAN SYRPHID FLIES — FLUKE 



51 



/ 



m) 



J K 



Figure 11. — a, Helophilus neoaffinis, new species, abdomen of male; b, H. neoaffinis, new 

 species, head of male; c, H. alaskensis, new species, head of male; d, H. alaskensis, new 

 species, abdomen of female; e, H. neoaffinis, new species, head of male;/, //. affinis Wahl- 

 berg, head of male; g, H. alaskensis, new species, head of female; h, II. alaskensis, new 

 species, head of male; i, H. alaskensis, new species, wing; ;, H. neoaffinis, new species, 

 genitalia; k, H. affinis Wahlberg, genitalia; /, H. obscurus Loew, genitalia; m, H. alaskensis, 

 new species, genitalia. 



