These wood boring beetles, invade and damage wood and furniture inside buildings. The larvae do the most damage to wood through feeding and emerge from the wood when they reach the adult stage.
The presence of sawdust and holes in walls can signal the presence of wood borers. One can test for the presence of wood borers by covering potentially infested sites with masking tape. If after a couple of weeks there are no holes in the tape, the infestation is inactive.