Powderpost beetles lay their eggs in cracks of wood and the larvae tunnel into the surface, filling it with a very fine powder-like dust. Powder Post Beetles have long, narrow, flat bodies that allow them to easily attack wood surfaces. These beetles are reddish-brown in color.
Powder Post Beetles often attack hardwoods, and can be found in hardwood floors, timbers, crates, antiques and other objects made of hardwood materials. There are some species of powder post that can remain dormant in wood for many years before emerging.