European Common Glow-worm

Lampyris noctiluca

Fairly common in some parts of Britain during May-September.

The wingless larviform females and larvae of these bioluminescent species are usually known as "glowworms".

Winged males may or may not also exhibit bioluminescence.

Their light may be emitted as flashes or as a constant glow, and usually range in colour from green, yellow, to orange.

The families are closely related, and are all members of the beetle superfamily, Elateroidea.