Adult body is black to brownish black; antennae are not longer than the body.
Development. Eggs are placed in cracks and crevices. Hatching occurs in about nine days, and first-stage larvae immediately bore into the wood. Larval development takes 2 to 10 years.
Full-grown larvae tunnel to the wood surface and cut oval exit holes. Adults live about 15 days.
Habits. Larvae feed on wood with moisture content of 10% to 20%. They do not feed on decayed wood. Infestations occur primarily in houses newer than 10 years old.