Acrobasis consociella

    Alternative names
    Broad-barred Knot-horn

    Wingspan 19-22 mm. It is similar to other British Acrobasis species but can appear more greyish.

    Identification difficulty

    Well wooded areas containing Oak.

    When to see it

    The adults are on the wing during July and August, when they can be attracted to light.

    Life History

    Oak is the food plant, the larvae feeding gregariously in spun leaves.

    UK Status

    Locally distributed from southern England northwards into southern Scotland and west into Ireland. In the Butterfly Conservation’s Microlepidoptera Report 2011 this species was classified as local.

    VC55 Status

    Uncommon in Leicestershire and Rutland, though possibly under recorded due to difficulty of identification. L&R Moth Group status = D (rare or rarely recorded)

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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