Urophora quadrifasciata

{{short description|Species of fly}}

{{speciesbox

|image = Urophora-quadrifasciata-Knapweed-gall-fly-20100706b.JPG

|image_caption = Urophora quadrifasciata

|genus = Urophora

|species = quadrifasciata

|authority = (Meigen, 1826){{cite book |last1=Meigen |first1=J.W. |title=Systematische Beschreibung der bekannten europäische n zweiflugeligen Insekten |date=1826 |publisher=Vierter Theil. Schulz-Wundermann |location=Hamm |pages=xii + 412 pp., pls. 42–54}}

| display_parents = 3

|synonyms = *Trypeta quadrifaciata Meigen, 1826

• Trypeta quadrifasciata Meigen, 1826
• Urophora dejeanii Robineau-Desvoidy, 1830{{cite journal |last1=Robineau-Desvoidy |first1=André Jean Baptiste |title=Essai sur les myodaires |journal=Mémoires presentés à l'Institut des Sciences, Lettres et Arts, par divers savants et lus dans ses assemblées: Sciences, Mathématiques et Physique |date=1830 |volume=2 |issue=2 |pages=1–813 |url=https://www.biodiversitylibrary.org/page/3472165#page/9/mode/1up |accessdate=15 July 2018}}

}}

Urophora quadrifasciata 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 knapweed (Centaurea sp),{{cite book |last1=White |first1=Ian M |title=Tephritid Flies, Diptera: Tephritidae |series=Handbooks for the Identification of British Insects |volume=10 |issue=5a |url=https://www.royensoc.co.uk/sites/default/files/Vol10_Part05a%20White.pdf |access-date=19 February 2021 |publisher=Royal Entomological Society of London}} and because of this, it is used to control Centaurea stoebe.{{cite journal |last1=Norrbom |first1=A.L. |last2=Carroll |first2=L.E. |last3=Thompson |first3=F.C. |last4=White |first4=I.M |last5=Freidberg |first5=A. |title=Systematic Database of Names. Pp. 65-252. In Thompson, F. C. (ed.), Fruit Fly Expert Identification System and Systematic Information Database. |journal=Myia |date=1999 |volume=9 |pages=vii + 524}}