The larvae are all wood borers that tunnel under the bark of trees. The first thoracic segment is strongly flattened, giving the larvae the name flat-headed wood borers. The larvae are white and legless. The most familiar member of this group is the bronze birch borer. The adults of this family are called long-horned beetles because of their extremely long antennae.
Some species have long legs as well.
The common locust borer and several related species are chestnut brown with bright yellow stripes and mimic a wasp. The larvae are white, segmented worms, with slightly enlarged, round heads. They lack visible legs. Larvae bore under the bark of trees into the wood. Some species are very destructive.