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Creeping thistle gall fly?

Observed: 29th May 2011 By: orangehooforangehoof’s reputation in Invertebratesorangehoof’s reputation in Invertebratesorangehoof’s reputation in Invertebratesorangehoof’s reputation in Invertebrates
IMGP0157 (2)
Description:

About 5-6mm long.
Seen on creeping thistle. There were lots of galls on the thistles in this area last year.

Identifications
Species interactions

No interactions present.

Species with which Urophora cardui interacts