LIFE CYCLE
The adult females lay eggs on or in wood. The eggs hatch into larvae, which develop as they tunnel the wood. The tunneling continues throughout the larval stage, which lasts for months or years, depending on the kind of beetle.
The full-grown larvae transform to pupae, which become adult beetles.
Adult of the southern lyctus beetle.
Adult of the old house borer.
Adult of the red-shouldered shothole borer, a bostrichid beetle.