Syrphid Fly (Helophilus sp.)
Syrphid Fly (Helophilus sp.)
Syrphid fly feeding on an aster flower at at Sullivan Slough Recreation Area in Des Moines County, Iowa.

Details:

Canon EOS 10D,  shutter 1/180 second, aperture f16, ISO 400, Canon EF 100 mm macro lens, Canon MR-14EX flash.
 

Selected References:

Milne Lorus, Milne Margery. National Audubon Society Field Guide to Insects & Spiders. New York: Alfred A. Knopf, Inc., 1980.  P 667.