Glow-worm - Lampyris noctiluca

    Alternative names
    Glow Worm

    The glow-worm is not really a worm at all, in fact it is a beetle. This is most obvious when you see the male. Lampyris noctiluca presents a conspicuous sexual dimorphism. The males are winged, with brown elytra, a clearer pronotum and a large brown spot in the middle, while females are larviforme, wings are missing and they are often twice the size of the males (up to 25 millimetres or 1 inch in length).

    Identification difficulty

    Low growing vegetation in the evenings. During the day they can be found under stones and logs.

    When to see it

    Active from May to late August.

    Life History

    Most noticeable at night in June and July when the female lights up to attract the males by emitting light from the last few segments of her abdomen.

    UK Status

    Fairly frequent and widespread in Britain.

    VC55 Status

    Fairly frequent but local in Leicestershire and Rutland. There were a total of 246 VC55 records for this species up to March 2015.

    be our species champion

    Leicestershire & Rutland Map

    MAP KEY:

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

    UK Map