Andricus quercuscalicis f. agamic (Burgsdorf, 1783)
(Knopper Gall Causer)

Taxonomic hierarchy:
FormAndricus quercuscalicis f. agamic (Knopper Gall Causer)
SpeciesAndricus quercuscalicis (Knopper Gall Wasp, Acorn Cup Gall Wasp)
GenusAndricus (a genus of gall wasps)
TribeCynipini (a tribe of hymenopterans)
FamilyCYNIPIDAE (gall wasps etc)
SuperfamilyCYNIPOIDEA (cynipoid parasitic wasps)
SuborderAPOCRITA (bees, wasps, ants and parasitoids)
OrderHYMENOPTERA (ants, bees and wasps, sawflies and parasitoid wasps)
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 Andricus quercuscalicis f. agamic (Knopper Gall Causer) :
1: Andricus quercuscalicis f. agamic (Knopper Gall Causer)
17 Aug 2018 OSGR: SY98 50° 40’ N, 2° 0’ W Vice County: Dorset (VC 9) England
young agamic galls, on Oak
Image 1: Galls (young) - white background
2: Andricus quercuscalicis f. agamic (Knopper Gall Causer)
17 Aug 2018 OSGR: SY98 50° 40’ N, 2° 0’ W Vice County: Dorset (VC 9) England
young agamic galls, on Oak
Image 1: Galls (young) - white background
3: Andricus quercuscalicis f. agamic (Knopper Gall Causer)
18 Oct 2015 OSGR: SZ49 50° 50’ N, 1° 20’ W Vice County: South Hants (VC 11) England
abundant galls on cups of fallen acorns under small oak
Image 1: Galls on fallen acorn cupules - white backgroundImage 2: Agamic female - dorsal view - highly enlarged - natural backgroundImage 3: Agamic female - dorsal view - wings apart - highly enlarged - silver backgroundImage 4: Agamic female - dorso-lateral view - highly enlarged - natural backgroundImage 5: Agamic female - dorso-lateral view - highly enlarged - silver backgroundImage 6: Agamic female - dorso-lateral view - highly enlarged - white backgroundImage 7: Agamic female - dorso-lateral view - highly enlarged - white background (2)Image 8: Agamic female - dorso-lateral view - highly enlarged - white background (3)Image 9: Agamic female - head and thorax - antero-dorsal view - highly enlarged - silver backgroundImage 10: Agamic female - lateral view - highly enlarged - natural backgroundImage 11: Agamic female - lateral view - highly enlarged - silver backgroundImage 12: Agamic female - lateral view - highly enlarged - silver background (2)Image 13: Agamic female - lateral view - highly enlarged - white backgroundImage 14: Agamic female - lateral view - highly enlarged - white background (2)Image 15: Agamic female - lateral view - highly enlarged - white background (3)Image 16: Agamic female - lateral view - highly enlarged - white background (4)Image 17: Agamic female - lateral view - highly enlarged - white background (5)Image 18: Agamic female - ventral view - highly enlarged - silver backgroundImage 19: Wings - microscope low magnification - white background
4: Andricus quercuscalicis f. agamic (Knopper Gall Causer)
13 Sep 1997 OSGR: SU56 51° 20’ N, 1° 10’ W Vice County: Berks (VC 22) England
Agamic gall on cupules of Quercus robur
Image 1: Old agamic gall on Oak cupule - grey backgroundImage 2: Old agamic gall on Oak cupule - LS - grey background
5: Andricus quercuscalicis f. agamic (Knopper Gall Causer)
7 Oct 1978 OSGR: SU83 51° 10’ N, 0° 50’ W Vice County: Surrey (VC 17) England
Agamic generation - Knopper Gall on acorn cup
Image 1: Galled acorn cupImage 2: Galled acorn cup - close-up

Andricus quercuscalicis f. agamic (Knopper Gall Causer) may be included in identification literature listed under the following higher taxa:

NBNNBN (data.nbn.org.uk) has a distribution map for Andricus quercuscalicis f. agamic (Knopper Gall Causer)
BioInfoBioInfo (www.bioinfo.org.uk) has 3 host/parasite/foodplant and/or other relationships for Andricus quercuscalicis f. agamic (Knopper Gall Causer)

The agamic generation of a cynipid gall-wasp that causes the now familiar Knopper Galls on acorn cups. It is a recent arrival (1960’s) in the UK.

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