Adults are about one inch long or longer; the antennae are sometimes longer than the body.
Development. Eggs are laid in crevices in the bark. Early-stage larvae feed beneath the bark, late-stage larvae tunnel deep into the wood. Larval development is completed in one or two years. Adults emerge in April and May, and are active throughout the warm season.
Frass. The galleries are usually empty, but fibrous frass may be found in some areas. Frass may be exposed at the wood surface.
Habits. These beetles develop in freshly cut, recently felled, dying, or recently dead trees. Larvae are called sawyers because of the sawing-wood sound they make while feeding. These beetles do not re—infest the original wood.