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Syrphid Fly? - female

Syrphid Fly? - Female
Mobile (Dog River), Mobile County, Alabama, USA
May 14, 2012
Size: 10-12mm
One of the Syrphids?

Images of this individual: tag all
Syrphid Fly? - female Syrphid Fly? - female

Are you sure these are the sa
Are you sure these are the same specimen. The white on the hind tibia looks more extensive in the second image.

Same specimen
Bill, I checked my original files, and this is appears to be the same specimen, consecutive images. Apparently, I followed it from the sheet to the UV light fixture. It's just the angle of the hind tibia.



Chalcosyrphus subg. Xylotomim
Chalcosyrphus subg. Xylotomima or Xylota subg. Xylota. The two are very similar, and I personally can't tell them apart; my key notes that you can't really tell them apart in the field without looking at the metasternum, though someone who's an expert in this group could likely tell you.

(I'm saying Xylota subg. Xylota instead of X. flukei because the markings on the second tergite on the abdomen seem to not reach the front edge of the tergite)

Replaced Image
I replaced the this image with a higher resolution one, from the original RAW file. Hopefully, this will help. Thanks,

That does let me confirm that
That does let me confirm that the markings don't reach the anterior edge of the second tergite, so subgenus Xylota is correct if this is Xylota.

On my Syrphidae to-do list is to go back with the key at some point and look at these Xylotina flies, but they're tricky ones! Sorry I can't be of more help on this lovely fly - they're wonderful images!

Moved from Syrphid Flies.

Moved from Flies.

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