Larvae, pupa, and adult goldspotted oak borer, Agrilus auroguttatus.

Life stages of the goldspotted oak borer, Agrilus auroguttatus. From left: fourth-instar larva, fourth-instar larva in a hairpin configuration and in a constricted form (both prepupal stages), pupa, and adult. Credit: Michael I. Jones
Credit: Michael I. Jones