General
The adult beetles are uniformly brown in colour and are between 4-6mm in length.

Reproduction
The adult female beetles, which have emerged from the characteristic round emergence holes in timber, after mating produce the small white lemon-shaped eggs. Each female produces approximately 20 eggs which are deposited on rough edges of timber, frequently the cut edges of finished timber. The larvae that emerge from the eggs after 3 to 4 weeks burrow into the timber and spend many months feeding on the wood, in many old dry timbers the life of the larvae may be many years. The beetles attack both hardwoods and softwoods with a preference for the sapwood.