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Photo#703511
Shore Fly - Brachydeutera longipes

Shore Fly - Brachydeutera longipes
Middlebury, Addison County, Vermont, USA
September 12, 2012
Size: 3.5mm
There were a few of these flies at the edge of a puddle and some were on the surface of the water.

Brachydeutera longipes Hendel
Moved from Brachydeutera. This appears to be Brachydeutera longipes based on examination of the specimen, now a photo-voucher. Thanks Tom.

Brachydeutera longipes is a relatively recent introduction to North America reported by Mathis & Steiner (1986). They reported it in the United States from Maryland south to Georgia, so this would be a significant range expansion if the identification is correct. Separation from the other species in the northeast, Brachydeutera argentata, can be seen in how sharply delimited the dorsal brown color is from the ventral grayish color. This is not visible in your photo.

Tom, I would like to see more Brachydeutera from your area to confirm this record. I have a number of Brachydeutera argentata from IN and KY to compare against, but it would be good to see a series of specimens to verify the ID.

 
Image use request
Hello, We (the Smithsonian Environmental Research Center's Marine Invasions Lab) have created a database on introduced species in the United States, California, and Chesapeake Bay.

I am looking for a photo of Brachydeutera longipes to go with it's record in our database - http://invasions.si.edu/nemesis/CH-TAX.jsp?Species_name=Brachydeutera%20longipes

Could we use your photo? We will give to credit for the image.

Thanks,

Monaca

 
Brachydeutera longipes
Brad this is a good record! I'll see if there are any more still out, otherwise I'll have to get more specimens next year.

Moved
Moved from Shore Flies.

Ephydridae
Moved from Flies. John nailed it. Save for ID if you'd like.

 
I have it saved
It'll be nice to get one of this genera identified to species.

Not Dolichopodidae
Ephydridae?

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