March fly - Bibio sp.

- No description given -

comments (4)

Christine Young

Lion

Lol, definitely weird. It looks like Bibio. In the east, I would have called it Bibio femoratus. Posted 3 years ago, modified 3 months ago
1. morpheme
  
  Lion
  
  Ha - that looks like the thing. These were everywhere, so I have some photos of males too, which I think can confirm the species. Posted 3 years ago, modified 3 years ago
2. morpheme
  
  Lion
  
  Maybe Bibio xanthopus? lots of discussion on BugGuide, but one of the characteristics seems to be antenna segments. These guys have 8 or 9, I think. B. femoratus has 6 or fewer. The male I have photos of has red rather than dark femora. Not sure about the wings though... both the male and female had light colored wings rather than dark. Posted 3 years ago
3. 1. Christine Young
    
    Lion
    
    Interesting! Leg colors can vary, but I would expect a male B. vestitus to have dark femora. Bibio xanthopus does seem like a good option. It seems the tibial spurs are also an important diagnostic feature. Maybe you saw this, but there's some good info here:
    https://bugguide.net/node/view/374717 Posted 3 years ago

The Yellow-footed March Fly

"Bibio xanthopus", or yellow-footed March fly, is a species of March fly first identified by Wiedemann in 1828. It is one of the most common species of "Bibio" in North America.

Info 2 0

Similar species: True Flies

Species identified by morpheme