Termites create tunnels through wood as it is consumed by the adults, resulting in serious structural damage. There are no flight holes, as with woodborers, but there is a sand-like frass. Woodboring Beetles including Powderpost and Death Watch Beetles, lay their eggs on wood which is then tunneled through by the larvae, sometimes for years before eventually emerging as adults through small holes. The powderpost beetle generates a very fine talcum powder-like frass. Silverfish prefer high humidity and dark conditions.
Carpet beetles go by a variety of names.
Adults feed on pollen, and may be brought indoors on fresh flowers. The larvae prefer dark, dirty areas, and eat fabrics, plant materials, fur, and feathers, usually grazing across the surface, resulting in obvious damage, or a general shabby look. Dermestids include Larder and Hide Beetles and are voracious. Both eat fur, feathers, woolens and dried plant materials, gradually thinning the food source down by grazing on the surface. Booklice are tiny and a pale color.