Glow-worm
Enw gwyddonol: Lampyris noctiluca
The glow-worm is not actually a worm, but a beetle. Males look like typical beetles, but the nightly glow of a female is unmistakeable - lighting up to attract a mate in the darkness of their grassland habitats. Look for the adults in summer.
Species information
Ystadegau
Length: 1.5-2.5cmStatws cadwraethol
Common.