Greenhouse Slug - Ambigolimax valentianus

    Alternative names
    Lehmannia valentiana

    55-80mm extended. This pale brown, medium-sized slug has 2-3 dark lines on the mantle which extend as tramlines along the body. These lines generally lighten with age. Mature specimens have a translucent, watery appearance. It has a small keel at the tip of the body. The sole is pale and the mucus colourless.

    Similar Species

    The Balkan Threeband Slug Ambigolimax nyctelius is usually more clearly marked but confidently separating these two species requires dissection. 

    Identification difficulty

    Often found near greenhouses, plant nurseries, allotments, under dead wood and in compost bins.

    When to see it

    Peak time is summer.

    Life History

    This slug appeared in Britain from Spain and seems to be increasing.

    UK Status

    Widespread in England, fewer records from elsewhere in Britain.

    VC55 Status

    Status in Leicestershire and Rutland not known.

    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