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Photo#896476
crab spider and syrphid

crab spider and syrphid
Heil Valley Ranch, Boulder County, Colorado, USA
June 10, 2013
I'm interested in what both the crab spider and the fly (Syrphidae?) might be, if it's possible to tell. Sorry the photo isn't sharper/better angle.

Moved
Moved from Spiders.

Moved
Moved from ID Request.

yes, crab spider in the Thomisidae
genus Mecaphesa

The fly sure looks like a syr
The fly sure looks like a syrphid to me - difficult to tell with the angle (it happens, silly living things!), but something within the subfamily Syrphinae. I think probably Platycheirus, but it could be something in the Syrphini as well given the marginated abdomen.

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