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Home » Guide » Arthropods (Arthropoda) » Hexapods (Hexapoda) » Insects (Insecta) » Flies (Diptera) » "Aschiza" » Hover Flies (Syrphidae) » Eristalinae » Volucellini » Copestylum » Copestylum fornax
Photo#1226024
clear fly with possible parasite on its back? - Copestylum fornax
Copyright © 2016 Robert Gorman

clear fly with possible parasite on its back? - Copestylum fornax
anza borrego desert state park, san diego County, California, USA
November 25, 2013
seems to be a parasite on its back
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Contributed by Robert Gorman on 20 May, 2016 - 4:25pm
Last updated 21 May, 2016 - 7:22am

Moved
Moved from ID Request.
… Kelsey J.R.P. Byers, 21 May, 2016 - 7:22am login or register to post comments

Copestylum fornax
Copestylum fornax
… Bill Dean, 21 May, 2016 - 2:00am login or register to post comments

Female - Syrphid Fly & Butterfly passinger
She looks like one of these two, (below) in the genus Copestylum and I'm leaning towards the first one. (The large antennae match the first one better.)
I'm not sure about the Butterfly, but it may just be a chance encounter. The experts should be able to tell you more. (You might want to re-crop this image, much closer to the bugs.)
Copestylum fornax: ♀ ...vs. Copestylum avidum: ♀ - Butterfly (maybe) - Western Pygmy-Blue, Brephidium exile: Good Luck!
… Bob Biagi, 20 May, 2016 - 5:20pm login or register to post comments

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