Ethanol-bait
Guides
Neoclytus acuminatus
Red-headed Ash Borer, Red-necked Ash Borer
Neoclytus acuminatus, commonly known as the red-headed ash borer, is a North American longhorn beetle in the family Cerambycidae. Adults measure 12–16 mm in length and exhibit striking wasp-mimic coloration with reddish-brown bodies marked by four contrasting yellow bands. The species develops in dead or dying hardwood trees, particularly ash, hickory, and oak, where larvae feed on sapwood. Multiple generations may occur annually in warmer regions. Adults emerge in early spring and are frequently attracted to ethanol-based baits. The species has expanded beyond its native range through human-mediated transport of wood materials and is now established in parts of Europe.