Distribution
Throughout Europe East to Japan; introduced to India, Pakistan, Australia, North America.References:
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Bull Thistle Gall Fly
Urophora stylata
"Urophora stylata" is a species of tephritid or fruit flies in the genus "Urophora" of the family Tephritidae. The host plant for the larvae is usually a thistle of genus "Cirsium" or "Carduus". It has been introduced in North America as a biocontrol of "C. vulgare", which has become an invasive species.
