Aculus tetanothrix

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    Description

    Aculus tetanothrix is a mite that causes rounded, sometimes reddened galls to form on the leaves of willows, particularly White Willow. The galls are seen more often than their causer.

    Identification difficulty

    Adult Gall

    Habitat

    Wherever White Willow is found.

    When to see it

    Summer and autumn.

    UK Status

    Thought to be widespread and fairly common where White Willow occurs.

    VC55 Status

    Status in Leicestershire and Rutland not known.

    be our species champion

    • Graham Calow
      Burbage Common and Woods
      11 September 2012
      on White Willow
    • Peter Smith
      Wolsey Island
      25 September 2017
    • sue
      Thornton Reservoir
      30 July 2018
    • Graham Calow
      Burbage Common and Woods
      11 September 2012
      on White Willow
    • Graham Calow
      Burbage Common and Woods
      11 September 2012
      on White Willow - underside of leaf
    • Saharima Roenisch
      Shady Lane Arboretum
      08 August 2018

    Leicestershire & Rutland Map

    MAP KEY:

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

    UK Map

    • Peter Smith
      Wolsey Island
      25 September 2017
    • Peter Smith
      Wolsey Island
      25 September 2017
    • Alan Semper
      Melton Country Park
      25 October 2017
      Underside of leaf
    • Saharima Roenisch
      Shady Lane Arboretum
      08 August 2018