Elateridae of the British Isles

Cardiophorus gramineus (Scopoli, 1763)

Size – 8-9.5mm.

Description – Black head and elytra, with a red pronotum. Longitudinal rows of pits are visible running the length of the elytra. The legs are black, with browner tarsal claws. The antennae are black and are long, extending beyond the posterior margin of the pronotum.

National Biodiversity Network map showing the distribution of Cardiophorus gramineus across Britain and Ireland.

British and Irish distribution of Cardiophorus gramineus (Scopoli, 1763) based on records held by the National Biodiversity Network.

Distribution data supplied by:

  • Tullie House Museum
  • Natural England

Distribution – Extinct in Britain. Stephens (1830) gives locations for this species as Norfolk, Somerset, Baron Wood in Cumberland, Windsor, the New Forest and Collingbourne Wood. Since then there has been no further records. (Mendel, 1988).

Biology – In continental Europe this species is associated with Oak (Quercus rober) and Poplar (Populus spp.), where it occurs in fairly dry decayed wood.

Habitat – Open situations within broadleaved forest.