Vasates quadripedes

    Description

    The mite Vasates quadripedes causes galls to form on the leaf veins or leaf blades of Silver Maple, but possibly on other similar ornamental Maple species. The galls are round or elongate, shiny, and with a rather knobbly appearance. They are quite large being 1.5 to 5 mm high and may be yellowish green or bright red at first, becoming darker red and black with age. There may be numerous galls on the same leaf.

    Identification difficulty

    Adult Gall

    Habitat

    Found on Silver Maple but possibly on other similar ornamental Maple species.

    When to see it

    From May onwards when Silver Maple is in leaf.

    Life History

    The mites overwinter under the bark of the Silver Maple, and then move to the new leaves in the spring and begin feeding, causing the galls to form.

    UK Status

    Fairly recently discovered in Britain but probably quite frequent.

    VC55 Status

    Status in Leicestershire and Rutland not known.

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    Leicestershire & Rutland Map

    MAP KEY:

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

    UK Map