bull thistle gall fly (Urophora stylata ) on bull thistle (Cirsium vulgare )

bull thistle gall fly
Urophora stylata (Fabricius)

Host: bull thistle (Cirsium vulgare (Savi) Ten.)
Descriptor: Larva(e)
Description: feeding in seed head (left) and normal head (right)
Image type: Field
Image location: United States

Photographer Information

Name: Eric Coombs
Organization: Oregon Department of Agriculture
Country: United States

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Subject: bull thistle gall fly
Genus: Urophora
Family: Tephritidae
Order: Diptera
Class: Hexapoda (including Insecta)
Photographer: Eric Coombs
Organization: Oregon Department of Agriculture
Area: Natural Resources - Biological Control

Image Number: 0024018

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Image Citation:(?) Eric Coombs, Oregon Department of Agriculture, Bugwood.org

Node Affiliation: University of Georgia

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Image uploaded on Monday, January 01, 1990
Image Information last updated on Monday, May 23, 2011