Urophora stylata

Complete

Family: Tephritidae | Genus: Urophora

Hosts: Cirsium arvense / Cirsium vulgare

Detachable: Integral

Color:

Texture:

Abundance:

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Season: Fall, Winter

Alignment:

Walls:

Location: bud, flower

Form:

Cells:

Possible Range:

Not an occurrence map: this shows where this gall's hosts grow. In most cases the gall has not been documented throughout this area.

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Common Name(s): bull thistle gall fly

An image of the gall of Urophora stylata in a Cirsium vulgare flowerhead.

Biological Control of Invasive Plants in the Eastern United States. USDA Forest Service Publication FHTET-2002-04 - Van Driesche, R; Blossey, B; Reardon, R; Hoddle, M; Lyon, S (2002)

License: Public Domain / CC0