Archive for May 15th, 2011

15th May 2011, Sunday

Thistle Gall Fly

Thistle Gall Fly
The swollen stems of thistles (galls) made by the larvae of the thistle gall fly are quite a common site but until yesterday I had never seen the fly – a Tephritidae species Urophora cardui. Yesterday I finally found the adult fly whilst I was walking around Beckley woods.