Caloptilia robustella

    Alt Name
    New Oak Slender

    Wingspan 10 to13 mm. Very similar to the related C. alchimiella, differing in several subtle ways including the yellow blotch on the forewing, which is shorter and less clearly defined in this species. However, to be certain of identification, dissection of genitalia is advised.

    Identification difficulty

    Usually in well wooded areas.

    When to see it

    The adult moths occur in a number of generations, any time between April and November.

    Life History

    The larva mines a leaf of oak, beech or sweet chestnut.

    UK Status

    Fairly frequent in Britain. In the Butterfly Conservation's Microlepidoptera Report 2011 this species was classified as common.

    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).

    15.009 BF287

    Leicestershire & Rutland Map

    MAP KEY:

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

    UK Map