Glow-worm Lampyris noctiluca
Males of this species are sometimes attracted to light.
male Glow-worm Lampyris noctiluca, North Elmham (Norfolk, UK), 19th June 2023
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male Glow-worm Lampyris noctiluca, North Elmham (Norfolk, UK), 21st June 2017
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male Glow-worm Lampyris noctiluca, Boughton Fen (Norfolk, UK), 2nd July 2016
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male Glow-worm Lampyris noctiluca, Derby Fen (Norfolk, UK), 8th November 2020
It is the grub-like females that are famous for glowing in the dark.
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female Glow-worm Lampyris noctiluca, North Elmham Cathedral Meadows (Norfolk, UK), 22nd June 2021
female Glow-worm Lampyris noctiluca, North Elmham Cathedral Meadows (Norfolk, UK), 15th June 2018
female Glow-worm Lampyris noctiluca, North Elmham Cathedral Meadows (Norfolk, UK), 18th July 2020
female Glow-worm Lampyris noctiluca, Betty's Fen (Norfolk, UK), 6th July 2013
The larvae are pretty distinctive too...
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Glow-worm Lampyris noctiluca larva, North Elmham Cathedral Meadows (Norfolk, UK), 8th November 2020