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Home » Guide » Arthropods (Arthropoda) » Insects (Insecta) » Flies (Diptera) » Aschiza » Syrphid Flies (Syrphidae) » Syrphinae » Syrphini » Allograpta
Photo#145841
Allograpta sp? - Allograpta
Copyright © 2007 Aaron Schusteff

Allograpta sp? - Allograpta
At ~4000', San Carlos Creek Rd, Clear Creek Management Area (BLM), San Benito County, California, USA
September 9, 2007
Apologies for the blurry, noisy image...was an active fly + breeze & low light!

My best conjecture here is Allograpta (don't know how to distinguish A. obliqua from A. exotica). This individual appears to have a somewhat different abdominal pattern than most the Allograpta photos on BugGuide...but overall those patterns seem fairly variable to me, so I don't know what to make of that.

It was photographed on an uncommon wild buckwheat species, Eriogonum covilleanum, in the large, arid, serpentine area known as Clear Creek.
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Contributed by Aaron Schusteff on 15 September, 2007 - 10:15pm
Last updated 16 September, 2007 - 10:08pm

I'd say A. obliqua
The oblique markings on the abdomen are usually more pronounced than on yours, but check this post:

I can't figure out what A. exotica looks like, either. The only photos I could find came from Hawaii, where it was said to be a non-native species. Contradicting the info on the Allograpta info page here, I did find a map that indicates A. exotica is in Mexico and Central America, but not the U.S. I'd ignore A. exotica, but I'm no expert.
… Ron Hemberger, 16 September, 2007 - 12:57am login or register to post comments

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