Urophora cardui (Linnaeus, 1758)
(Thistle Stem Gall-fly)

Taxonomic hierarchy:
SpeciesUrophora cardui (Thistle Stem Gall-fly)
GenusUrophora (a genus of gall flies)
FamilyTEPHRITIDAE (gall-flies, greater fruit flies)
SuperfamilyTEPHRITOIDEA (lance and picture-wing flies)
InfraorderSchizophora - Acalyptratae (an infraorder of flies)
OrderDIPTERA (two-winged flies)
Division Endopterygota (bees, beetles, flies, moths and other insects with wings developing internally)
InfraclassNeoptera (bees, beetles, flies, grasshoppers, moths and other advanced insects)
SubclassPTERYGOTA (bees, beetles, dragonflies, flies, grasshoppers, moths and other winged insects)
ClassINSECTA (true insects)
SubphylumHEXAPODA (insects and other 6-legged organisms)
PhylumARTHROPODA (arthropods)
SuperphylumECDYSOZOA (skin shedders)
CladeBilateria (bilaterally symmetrical animals)
SubkingdomEUMETAZOA (metazoans)
KingdomANIMALIA (animals)
DomainEukaryota (eukaryotes)
LifeBIOTA (living things)
Records of Urophora cardui (Thistle Stem Gall-fly) :
1: Urophora cardui (Thistle Stem Gall-fly)
6 May 2018 OSGR: SY68 50° 40’ N, 2° 30’ W Vice County: Dorset (VC 9) England
over-wintered galls on dead branches of Creeping Thistle
Image 1: Over-wintered gall - dark backgroundImage 2: Over-wintered gall - dark background (2)Image 3: Over-wintered gall - dark background (3)Image 4: Over-wintered galls - dark background
2: Urophora cardui (Thistle Stem Gall-fly)
8 Oct 2017 OSGR: ST90 50° 50’ N, 2° 0’ W Vice County: Dorset (VC 9) England
gall on stem of Creeping Thistle . Photos: Male and female
Image 1: Female - dorsal view - highly enlarged - silver backgroundImage 2: Female - dorsal view - oviscape extended - highly enlarged - silver backgroundImage 3: Female - fore-parts - dorsal view - magnified - silver backgroundImage 4: Female - head and thorax - dorsal view - magnified - silver backgroundImage 5: Female - head and thorax - lateral view - magnified - silver backgroundImage 6: Female - head - dorsal view - magnified - silver backgroundImage 7: Female - head - lateral view - magnified - silver backgroundImage 8: Female - lateral view - highly enlarged - silver backgroundImage 9: Female - ventral view - highly enlarged - silver backgroundImage 10: Male - dorsal view - highly enlarged - silver backgroundImage 11: Male - dorsal view - highly enlarged - silver background (2)Image 12: Male - head and thorax - dorsal view - magnified - silver backgroundImage 13: Male - head and thorax - lateral view - magnified - silver backgroundImage 14: Male - head - dorsal view - magnified - silver backgroundImage 15: Male - head - lateral view - magnified - silver backgroundImage 16: Male - lateral view - highly enlarged - silver backgroundImage 17: Male - ventral view - highly enlarged - silver backgroundImage 18: Male - antennae - anterior view - microscope low magnification - silver backgroundImage 19: Male - head - anterior view - microscope low magnification - silver background
3: Urophora cardui (Thistle Stem Gall-fly)
6 Jun 2011 OSGR: SU56 51° 20’ N, 1° 10’ W Vice County: Berks (VC 22) England
Male, resting on Red Campion
Image 1: Male - dorsal view - highly enlargedImage 2: Male - dorsal view - highly enlarged (2)Image 3: Male - head and thorax - dorsal view - magnifiedImage 4: Male - head and thorax - lateral view - magnifiedImage 5: Male - head and thorax - lateral view - magnified (2)Image 6: Male - head - anterior view - magnifiedImage 7: Male - head - dorsal view - magnifiedImage 8: Male - head - ventral view - magnifiedImage 9: Male - lateral view - highly magnified - grey backgroundImage 10: Male - on leaf - antero-dorsal view - enlargedImage 11: Male - on leaf - antero-dorsal view - enlarged (2)Image 12: Male - on leaf - dorso-lateral view - enlargedImage 13: Male - on leaf - front three-quarter view - enlargedImage 14: Male - on leaf - front three-quarter view - enlarged (2)Image 15: Male - ventral view - highly enlargedImage 16: Wing - (right wing, ventral view) - magnified
4: Urophora cardui (Thistle Stem Gall-fly)
30 Aug 2003 OSGR: SU56 51° 30’ N, 1° 10’ W Vice County: Berks (VC 22) England
Gall in stem of side-shoot of Creeping Thistle
Image 1: Gall - close-upImage 2: Galled side shootImage 3: Gall LSImage 4: Gall - LSImage 5: In situImage 6: Gall - enlarged
5: Urophora cardui (Thistle Stem Gall-fly)
18 Sep 1968 OSGR: TQ20 50° 50’ N, 0° 10’ W Vice County: East Sussex (VC 14) England
Galled stems of Creeping Thistle
Image 1: Galled stems of Creeping Thistle

Urophora cardui (Thistle Stem Gall-fly) may be included in identification literature listed under the following higher taxa:

NBNNBN (data.nbn.org.uk) has a distribution map for Urophora cardui (Thistle Stem Gall-fly)
BioInfoBioInfo (www.bioinfo.org.uk) has 6 host/parasite/foodplant and/or other relationships for Urophora cardui (Thistle Stem Gall-fly)
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