Elateridae of the British Isles

Ampedus elongantulus (Fabricius, 1787)

Size – 7-8mm.

Description – A very small Ampedus, the head and pronotum are black with a sparse covering of hairs visible. The elytra are orange, turning black at the tips. Longitudinal rows of pits are obvious on the elytra. The legs and antennae are black and the antennae are long, extending beyond the hind edge of the pronotum.

National Biodiversity Network map showing the distribution of Ampedus elongantulus across Britain and Ireland.

British and Irish distribution of Ampedus elongantulus (Fabricius, 1787) based on records held by the National Biodiversity Network.

Distribution data supplied by:

  • Dorset Environmental Records Centre
  • Royal Horticultural Society
  • Countryside Council for Wales
  • Natural England

Distribution – Local from the south coast to Buckinghamshire, east to the Kent coast and west to Dorset. Isolated and historical records from west Wales and Lincolnshire.

Biology – The larvae develop in the rotten heartwood of Oak (Quercus rober), Beech (Fagus sylvatica) and Pines (Pinus spp.). Pupation occurs in the autumn with the insect eclosing and spending the winter as an imago in the pupa. On emergence the adults can be found on Hawthorn (Cratageus spp.) flowers.

Habitat – Ancient broadleaved woodland, mixed woodland and wood pastures.