Acilius sulcatus


    A large water beetle (14 to 18 mm) with considerable colour variation. Although it is a distinctively marked species, there are some very similar species and care is needed with identification.

    Identification difficulty

    Temporary and permanent water bodies such as ponds and streams etc. A.sulcatus is able to fly it is not restricted to a single body of water. It is found in water bodies with high and low levels of vegetation showing no preference between the two.

    When to see it

    All year round.

    UK Status

    Widespread and fairly frequent in Britain.

    VC55 Status

    Fairly frequent in Leicestershire and Rutland.

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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