Elateridae of the British Isles

Procraerus tibialis (Boisduval & Lacordaire, 1835)

Size – 6-8mm.

Description – Head, pronotum and elytra uniform black, with longitudinal rows of pits visible running the length of the elytra. Densely scattered pits are obvious on the pronotum. Femora are black, with tibiae and tarsi mid-brown. The antennae are predominantly black, with the last 4-5 segments a lighter brown. They are long, extending a way beyond the posterior margin of the pronotum.

National Biodiversity Network map showing the distribution of Procraerus tibialis across Britain and Ireland.

British and Irish distribution of Procraerus tibialis (Boisduval & Lacordaire, 1835) based on records held by the National Biodiversity Network.

Distribution data supplied by:

  • Dorset Environmental Records Centre
  • Natural England
  • Leicestershire Environmental Resources Centre
  • Wiltshire and Swindon Biological Records Centre

Distribution – Widespread but rare, ranging from the south coast north to Nottinghamshire. No records from Wales or Scotland.

Biology – Larvae are predominanatly associated with Ash (Fraxinus excelsior), Beech (Fagus sylvatica) and Oak (Quercus rober), but associations with other species are probable. They utilise the dead rotting heartwood and are thought to feed on the larvae of Stereocorynes truncorum and Phloeophagus lignarius (Coleoptera: Curculionidae). The larvae pupate and eclose at the end of the summer and the imago overwinters within the pupal case.