Steely Blue Beetle

Steely Blue Beetle

Korynetes caeruleus

Appearance

Steely Blue Beetle
  • Adult – 4mm. Shiny blue colour.

Lifecycle

  • Eggs are laid on the surface of wood by or just inside exit holes.
  • Larvae live inside wood that has been infested by woodboring insects, where they feed on the larvae of these wood-damaging insects.
  • Adult: After emergence they mate, lay eggs and then die.

Habits

  • Predator of common furniture beetle and deathwatch beetle – so its presence indicates a heavy infestation of either woodboring insect.
  • It is the rarely seen larvae which consumes the larvae of the woodboring pests in their tunnels. The steely blue beetle is not capable of damaging wood.

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