Tan, red-eyed fly on tree sap - Drosophila
Pryor, Mayes County, Oklahoma, USA
September 18, 2013
Size: 3.6 mm to wingtips
There were several of each of these varieties of fly (dark, small tan, and large tan) on the tree. I'm not sure whether the difference is male/female, different species, or varieties of the same. The small tan fly is 2.9 mm to the wingtips.
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