Eriophyes laevis

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    Alt Name
    Eriophyes inangulis
    Description

    The mite Eriophyes laevis causes galls to form on the leaves of Alder (Alnus glutinosa). The galls start off shiny yellow, becoming green then red, purplish or brown. They are scattered over the leaf, often numerous, and with a small opening below. The gall is seen more often than the mite.

    Identification difficulty

    Adult Gall

    Habitat

    On Alder

    When to see it

    The gall can be seen at any time that Alder is in leaf, best time is around August and September.

    UK Status

    Widespread and fairly frequent in Britain.

    VC55 Status

    Fairly frequent in Leicestershire and Rutland.

    • David Nicholls
      Watermead Country Park
      27 September 2013
      on Alder
    • Graham Calow
      Witherley
      26 September 2015
    • Graham Calow
      Witherley
      26 September 2015
    • Graham Calow
      Witherley
      26 September 2015
    • David Nicholls
      Thornton Reservoir
      05 October 2019

    Leicestershire & Rutland Map

    MAP KEY:

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

    UK Map

    • David Nicholls
      Watermead Country Park
      27 September 2013
    • David Nicholls
      Ratby
      05 June 2014
      on Alder