Woodlouse Spider - Dysdera crocata


    Females 11 to 15 mm, Males 9 to 10 mm. It has a dark red thorax and orange-brown abdomen. There is one other very similar species - D. erythrina - and the two can only be separated by detailed examination. If we cannot be certain that an image is D. crocata , but it is likely to be this species, it is highlighted in a red box.

    Identification difficulty

    They are usually to be found under stones and logs in warm places, often close to woodlice. They have been found in houses.

    When to see it

    Hunts at night without the use of a web.

    Life History

    Their diet is comprised exclusively of woodlice. This species has especially powerful jaws that can pierce into woodlice.

    UK Status

    Fairly frequent and widespread in much of Britain.

    VC55 Status

    Fairly common in Leicestershire and Rutland.

    Further Information

    2259 British records to Jan 2013

    Leicestershire & Rutland Map

    MAP KEY:

    Yellow squares = NBN records (all known data)
    Coloured circles = NatureSpot records: 2020+ | 2015-2019 | pre-2015

    UK Map