Aculus laevis

    Description

    Aculus laevis is a gall mite that causes slightly hairy, more or less spherical galls to form on the leaves of some Willows. The galls are 1 to 2 mm high and firmly attached to the leaves. Starting off yellowish green they become reddish brown as they mature.

    Identification difficulty
    Habitat

    On Willows.

    When to see it

    Summer.

    UK Status

    Believed to be fairly frequent in Britain, but poorly recorded.

    VC55 Status

    Status in Leicestershire and Rutland not known.

    Leicestershire & Rutland Map

    UK Map