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Photo#210299
Diptera 11 - Exoprosopa dorcadion

Diptera 11 - Exoprosopa dorcadion
Near Curlew Lake, ~10 miles Northeast of Republic, Ferry County, Washington, USA
July 10, 2008
Found resting in the short grass in the afternoon.

Bee Fly
Bee Fly, perhaps genus Anthrax or one of the related genera like Xenox.

 
ID
This looks to be Exoprosopa dorcadion, a fly of very widespread, but patchy distribution, favoring mountains and cool coastal areas. I think the dark body and wings help it warm in the sun. This is the US Exoprosopa with the highest altitude record, around 12,000 ft.

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