Thistle Stem Gall Fly

Urophora cardui

Summary 2

Urophora cardui or the Canada thistle gall fly is a fruit fly which, contrary to its common name, is indigenous to Central Europe from the United Kingdom east to near the Crimea, and from Sweden south to the Mediterranean.

Sources and Credits

  1. (c) Mick Talbot, some rights reserved (CC BY-NC-SA),
  2. (c) Wikipedia, some rights reserved (CC BY-SA),

More Info

iNat Map