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Photo#22098
Fly - Procecidochares atra - female

Fly - Procecidochares atra - Female
Lancaster, Worcester County, Massachusetts, USA
June 24, 2005
Size: 4mm including ovipositor

Procecidochares
This is Procecidochares and very likely the species atra. The wing pattern is very characteristic for the genus.

 
P. atra
Great, another of the many you've identified to species!!! Thanks Martin.

Looks like Eurosta
Sure looks like Eurosta, e.g., Goldenrod Gall Fly, E. solidaginis, or a related species. There is supposed to be variation in the wing markings of E. solidaginis, and there are other species in that genus. I think I'm close--I looked at those flies quite a bit earlier in the summer.



Patrick Coin
Durham, North Carolina

 
Eurosta
It's most likely in that genus. The species, that may be a little harder to nail down. Thanks Patrick.