Elachista utonella

    Alt Name
    Bog Dwarf, Biselachista utonella

    Wingspan 8 to 9 mm. Can be reliably separated from other similar Elachista species only by dissection of the genitalia.

    Identification difficulty

    Wet and boggy areas where sedges (especially Carex species) are found.

    When to see it

    July and August.

    Life History

    Larva mines the leaves of various sedges especially certain Carex species. The mines are usually visible from March to May.

    UK Status

    Widespread but uncommon. In the Butterfly Conservation's Microlepidoptera Report 2011 this species was classified as Nationally Scarce B.

    VC55 Status

    Rare in Leicestershire and Rutland, the record for 2013 being the first in VC55. L&R Moth Group status = D (rare or rarely recorded).

    38.045 BF629

    Leicestershire & Rutland Map

    MAP KEY:

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

    UK Map