Dytiscus circumflexus


    In this species the metacoxal plates are sharply pointed. It is 30 mm or more in length and the pronotum has narrow yellow borders front and back with the sides being only a little wider. Other distinguishing features are the underside of the beetle which is straw-yellowish with wide dark edges, the metacoxae & the last sternite are dark; the eyes have no pale rim and the scutellum has a yellow centre. The scutellum is usually dark in this species.

    Similar Species

    Dytiscus circumcinctus.

    Identification difficulty
    Recording advice

    Unless identified by a recognised expert, photos are required from above and below. If the photo doesn't show the key ID features then in the comments box describe the size and identifying characters you have observed.


    Freshwater ponds and lakes and canals. It flies well and may also be attracted to light.

    When to see it

    All year round.

    UK Status

    Widespread in England and Wales, but seems to be rather local.

    VC55 Status

    Rarely recorded in Leicestershire and Rutland.

    Further Information

    Larger water beetles - a Dutch key but with very useful photos

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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