Andricus quercuscorticis

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    Description

    Andricus quercuscorticis is a gall wasp that causes galls on the trunks of English Oak (Quercus robur). The galls are ovoid; they occur in clusters and are embedded in the bark, eventually only the empty sockets persisting.

    Identification difficulty

    Adult Gall

    Habitat

    Where the host oak trees are found.

    When to see it

    Galls form in May but the sockets persist.

    UK Status

    Widespread and may be locally frequent, but it is under recorded in Britain.

    VC55 Status

    Fairly frequent in Leicestershire and Rutland.

    • Graham Calow
      Burbage Common and Woods
      07 April 2015
      on Quercus robur
    • Graham Calow
      Burbage Common and Woods
      07 April 2015
      on Quercus robur
    • Alan Semper
      Brocks Hill Country Park
      06 September 2014
      Exit holes
    • Graham Calow
      Burbage Common and Woods
      07 April 2015
      on Quercus robur
    • Alan Semper
      Brocks Hill Country Park
      06 September 2014
      Exit holes top right of branch callous

    Leicestershire & Rutland Map

    MAP KEY:

    Yellow squares = NBN records (all known data)
    Coloured circles = NatureSpot records: 2020+ | 2015-2019 | pre-2015

    UK Map

    • martindgrimes
      Priors coppice
      04 September 2016