Urophora cardui 1, Distelgalboorvlieg, Saxifraga-Rutger Barendse Gal of the Thistle Gall Fly (Urophora cardui), Netherlands  Gal of the Thistle Gall Fly (Urophora cardui), Netherlands : Dutch, Holland, insect, Netherlands, thistle, Urophora cardui, Europe, European, flies, fly, gal flies, gal fly, naturenatural, Thistle Gall Fly Gal van distelgalboorvlieg  Gall of the Thistle Gall Fly Urophora cardui, Holland : color, colour, Europe European, gal fly flies, gall galls, horizontal, insect, nature natural, thistle, Thistle Gall Fly flies, Urophora cardui