Metallus lanceolatus


    The larvae of the sawfly Metallus lanceolatus mine the leaves of various Geum species. The mine begins with short, rather broad corridor that often is overrun by the later, large, very transparent full depth blotch. The mine begins somewhere in the centre of the leaf. Frass in many loose grains.

    Identification difficulty

    Where Geum species occur.

    When to see it

    When Geum species are in leaf, the larvae usually occur in summer and early autumn.

    UK Status

    The species appears to be widespread in England and Wales but is not well recorded.

    VC55 Status

    Status in Leicestershire and Rutland not known.

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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