Stigmella aceris

    Alternative names
    Scarce Maple Pigmy

    Wingspan 3.7 to 4.7mm.

    Identification difficulty

    Adult Leafmine

    ID guidance

    Leafmine occurs on Field Maple (and sometimes on Norway Maple).


    Found in woodland, gardens, hedgerows and parkland in areas where Field Maple is present.

    When to see it

    Bivoltine May-Jun and again in August.

    Life History

    The larvae mine the leaves of Field Maple from end of June-early July, then in August-early September.

    UK Status

    Formerly a very rare in Britain (as recently as the 1980s) it is now becoming more frequent and has reached the English Midlands. In the Butterfly Conservation's Microlepidoptera Report 2011 this species was classified as local.

    VC55 Status

    Not recorded in VC55 until 4th October 2018 (from Geeston) but was found again at Willowbrook Park on 8th October 2018 and has since been recorded in our area fairly frequently from leafmines on Field Maple.

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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