How to identify: the Chestnut worm

Chestnut wormScientific name
Lumbricus castaneus

Common and widespread, found in many habitats. Lives in leaf litter and under logs.

Typical size of adult is 4cm


  • Short in length
  • Upper surface of body, from the first segment to the saddle, is entirely dark in colour (chestnut brown)
  • Male pores not visible (see earthworm key for image)
  • A raised whitish gland is visible on the underside between the saddle and the head (see earthworm key for image)