Wood-boring beetle (likely Powderpost beetle family)

Hardwood materials, sapwood of trees, and seasoned wood products or structures

Larvae feed on the starch and cellulose within dry wood, specifically hardwoods with large pores

Larvae tunnel through wood for months or years before pupating; adults emerge by chewing 'shot holes' in the surface, often leaving behind fine, flour-like powder (frass)

Significant risk of structural damage to furniture, wood flooring, and structural timbers; provides little ecosystem benefit in human environments but aids in wood decomposition in nature