Embed Four-barred Knapweed Gall Fly - Urophora quadrifasciata

Four-barred Knapweed Gall Fly - Urophora quadrifasciata TL: ~2 mm.

Native to Europe, introduced in North America to control knapweed (Centaurea sp.). Females lay eggs in half-grown flowers using their ovipositors. 

Habitat: Attracted to a light; semi-rural area

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