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Photo#13410
Unknown Syrphidae - Platycheirus - female

Unknown Syrphidae - Platycheirus - Female
Springfield, Fairfax County, Virginia, USA
September 18, 2004
I'm unsure about this female flower fly. It reminds me of some Platycheirus species, but without knowing the diagnostic traits I can't say for certain. Any help identifying is appreciated.

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Unknown Syrphidae - Platycheirus - female Unknown Syrphidae - Platycheirus - female

Indeed, a female Platycheirus sp.
Hello Richard,
You are right on this one! It is for sure a female of the genus Platycheirus! Unfortunately, from the picture it is not possible to see the distinguishing characters for the genus, if you would want to follow the nearctic Syrphidae key.
To see is that it belongs in the subfamily Syrphini because of the shape of the head (posteriorly strongly concave) and the way it is attached to the thorax.(closely attached so the postpronota are partly or entirely hidden) The overall shape and color of the animal and it's size makes it almost sure that it is a female Platycheirus.
There are about 64 species in the USA, but I don't know them all, so no species ID yet!
Greetings,
Gerard Pennards

 
Platycheirus
As always, thanks for the help and information, Gerard!

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