Locust Borer - Home and Garden IPM from Cooperative Extension - University of Maine Cooperative Extension

Locust Borer (Megacyllene robiniae) (Hollis, ME; 8/26/2025) (Photo courtesy of Dave Thompson) The Locust Borer (Megacyllene robiniae) is a species of long-horned beetle (Family Cerambycidae). Adults are about one-inch long with reddish legs, and feed a little on the pollen and nectar of goldenrod plants, upon which they are well camouflaged