Hairworms - Nematomorpha

    Alternative names
    Gordion worms

    Long, thin wire-like worms found in damp or aquatic habitats. They are not segmented. They are typically 50-100 mm in length and 1-2 mm in diameter. Identifying this group to species is very difficult but we have included representative images below to illustrate the phylum.

    Similar Species

    Nematodes are similar and could be confused, though these are usually shorter in length and much more mobile.

    Identification difficulty

    Damp and aquatic habitats.

    When to see it

    All year.

    Life History

    The larvae are parasitoids of various arthropods.

    UK Status

    Unknown - rarely recorded.

    VC55 Status


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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