Caloptilia populetorum

    Alt Name
    Clouded Slender

    Wingspan 11 to14 mm. The adults resemble several other Caloptilia species and are best identified by the dark spots on the forewing leading edge and darker cilia.

    Identification difficulty

    A species of moorland and heath especially where Birch is present.

    When to see it

    The flight period is from August onwards, overwintering after which they may be seen until April or May.

    Life History

    Despite the scientific name, the larvae feed on birch (Betula) leaves, initially in a gallery and later rolling a leaf and feeding within.

    UK Status

    This species has a wide distribution over much of mainland Britain, but is not especially common. In the Butterfly Conservation's Microlepidoptera Report 2011 this species was classified as local.

    VC55 Status

    It appears to be uncommon in Leicestershire and Rutland, where there are few records. L&R Moth Group status = D (rare or rarely recorded).

    15.003 BF281

    Leicestershire & Rutland Map

    MAP KEY:

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

    UK Map