Two-coloured Mason Bee - Osmia bicolor


    The female of this small (12 mm) bee is particularly attractive, with a black head and thorax and bright gingery hairs covering the abdomen. In the male the ginger is less striking.

    Identification difficulty

    Various habitats.

    When to see it

    April to July.

    Life History

    This is a bee that uses vacant snail-shells as nest sites. It uses masticated leaves to build up to five cells inside before camouflaging the shell with grass or dead leaves.

    UK Status

    Mainly found south of a line between The Wash and the Severn Estuary.

    VC55 Status

    Infrequent 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