Stigmella trimaculella

    Alternative names
    Black-poplar Pigmy

    A tiny moth with a wingspan of 5 to 6 mm. The adults are rather attractive, with brownish grey forewings each with three creamy patches.

    Identification difficulty

    Adult Leafmine

    ID guidance

    Leafmines occur on Lombardy Poplar, Black Poplar and Hybrid Black-poplar.


    Areas where the larval foodplant is present.

    When to see it

    They fly in May and again in August.

    Life History

    The larvae mine the leaves of Poplar (Populus), with variable characteristics, but usually beginning with a narrow black central line of frass. The mines are found in late June and July and from September to October.

    UK Status

    Distributed throughout England, where it is fairly common except in the west; there are records from Scotland and Wales, but very few. 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).

    4.039 BF73

    be our species champion

    Leicestershire & Rutland Map

    MAP KEY:

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

    UK Map