Lyctid Powderpost Beetles
The adult powderpost beetle is a small, cylindrical, brown to black beetle that attacks hardwood. Damage caused by the powderpost beetle is usually first detected with the appearance of holes in wood, 1/32 - 1/16 inch-diameter, from which a very fine sawdust may fall.
Larvae of the powderpost beetle feed on many of the various hardwoods used in furniture, baskets, hardwood trim and flooring. Infestations in homes are almost always due to infestation of the wood prior to construction.
Control of powderpost beetles usually requires treatment by fumigation or replacement of the infested wood.