Tropidia? - Chalcosyrphus nemorum

Moved

… Martin Hauser, 29 June, 2015 - 6:50pm

This seems to be like Xylota

This seems to be like Xylota fraudulosa ( Bulletin 31, United States National Museum, page 230 ) with the thoracic markings and is mostly considered a synonym of Chalcosyrphus nemorum.

… Bill Dean Canada, 3 May, 2015 - 10:49am

After further reading I am le

After further reading I am less certain this is what they thought of as Xylota fraudulosa but still think this is an unusual form of Chalcosyrphus nemorum.

… Bill Dean, 16 November, 2016 - 7:30pm

Moved

Moved from Syrphid Flies.

… John S. Ascher, 29 September, 2014 - 8:24pm

Tropidia looks right to me, but I haven't seen these in the wild

… Ron Hemberger, 12 May, 2013 - 6:03pm

Thanks, Ron.

I just spent more time looking at BG images and the Ontario Syrphid guide and Tropidia does look good. Antenna colour and abdomen pattern don't fit male T. quadrata so perhaps one of the other species?

… Stuart Tingley, 12 May, 2013 - 8:52pm

Hmmmm

Then again there is Chalcosyrphus, Xylota, ......

… Stuart Tingley, 12 May, 2013 - 9:34pm

I'm a bit more familiar with those and still think Tropidia.

Your call, as always.
(Have you checked the Info page on T. quadrata? Leg is telling. Do you have anything that might show that feature?)

… Ron Hemberger, 12 May, 2013 - 10:23pm

No luck with additional photos.

I went back and checked the 15 images I have of this individual and all were taken from above so don't help with that. I should know better by now......

… Stuart Tingley, 13 May, 2013 - 7:26am

So many angles to consider.

My second shot, if possible, would to the face, then a profile. Exception: With the thick-legged critters, a shot of the "drumbstick". I was totally non-plused one time when asked for a view of a beetle's feet and had nothing even close! (Drumbsticks are good for grasshoppers, too.)

… Ron Hemberger, 13 May, 2013 - 11:46am