Powder Post Beetle

Powder post beetles live in dry wood. They are about 1/8″ long, cylindrical shaped and dark brown in color. They are narrow, elongated, dorso-ventrally flattened, with head visible dorsally. The antennal club is abrupt and 2-segmented. Their larvae do most of the damage to wood. The larvae is white, cylindrical shaped, and just about the size of a comma on this page. They damage structural timbers as well as furniture.

Their name refers to the adults boring into seasoned wood reducing it to powder. The powder post beetle is especially destructive to woodwork and to furniture because it destroys the interior of wood, leaving a paper-thin layer of wood or paint on the outside. They enter wood through tiny openings and excavate galleries.  The leave a fine frass as they excavate wooden timbers.