Subject: Bug identification
Location: Huntsville, Ontario, Canada
June 14, 2016 3:39 pm
I noticed this interesting horsefly-like bug laying these green eggs on our car mirror in late spring (June 14th) in Huntsville Ontario. I was hoping you could help identify? It seems like a horse fly, but the eggs are green rather than milky white as many sites have suggested they would be. I wondered if it was a bee at first? I appreciate any help.
We believe we have correctly identified your ovipositing Soldier Fly as either Stratiomys adelpha or Stratiomys discalis based on images posted to BugGuide. According to BugGuide: “S. adelpha and S. discalis are very similar and may turn out to be the same species. The taxonomy of the Nearctic Stratiomys is a mess. There are a few easily distinguished species, but several spp. are defined based on coloration which is variable. The male genitalia have never been examined carefully, and they could be helpful. –N.E. Woodley, pers. comm.”