; class Insecta, order Coleoptera)
Family of elongate, pubescent beetles, usually strikingly marked, up to 20 cm long. The antennae are filiform, at least two-thirds of the body length, and often greater. Larvae are fleshy and elongate, with powerful jaws and reduced legs. They feed on wood of dead or dying trees, and may take four years to reach maturity. There are 20 000 species.