Identification, Images, & Information
For Insects, Spiders & Their Kin
For the United States & Canada

Species Neoclytus acuminatus - Red-Headed Ash Borer

Red-Headed Ash Borer - Neoclytus acuminatus Red-Headed Ash Borer - Neoclytus acuminatus BG2231 E4428 - Neoclytus acuminatus - female Beetle - Neoclytus acuminatus - female Neoclytus acuminatus Dogwood bug - Neoclytus acuminatus - male - female Agile beetle - Neoclytus acuminatus Red-Headed Ash Borer - Neoclytus acuminatus
Kingdom Animalia (Animals)
Phylum Arthropoda (Arthropods)
Subphylum Hexapoda (Hexapods)
Class Insecta (Insects)
Order Coleoptera (Beetles)
Suborder Polyphaga (Water, Rove, Scarab, Long-horned, Leaf and Snout Beetles)
No Taxon (Series Cucujiformia)
Superfamily Chrysomeloidea (Long-horned and Leaf Beetles)
Family Cerambycidae (Long-horned Beetles)
Subfamily Cerambycinae
Tribe Clytini
Genus Neoclytus
Species acuminatus (Red-Headed Ash Borer)
Synonyms and other taxonomic changes
Neoclytus acuminatus (Fabricius)
Orig. Comb: Callidium acuminatum Fabricius 1775
2 sspp., both in our area(1)
4-13 mm(2)
markings distinctive; note the thickened antennal tips
most of NA; N. a. acuminatus* e. NA to NB-TX; N. a. hesperus w. NA(1)
*introduced in Europe, now widespread(3)
Larvae feed on the sapwood of ash and other hardwoods, and even occasionally on vines and shrubs(2). Larvae are common in downed timber with the bark left on.
Life Cycle
Overwinters in infested tree trunks, probably as pupae; adults emerge in early spring and lay eggs under bark of recently dead trees
Comes to lights(2)
Internet References
Works Cited
1.A Photographic Catalog of the Cerambycidae of the New World
2.Field Guide to Northeastern Longhorned Beetles (Coleoptera: Cerambycidae)
Douglas Yanega. 1996. Illinois Natural History Survey.
3.Alien terrestrial arthropods of Europe
Roques A., Kenis M., Lees D., Lopez-Vaamonde C., Rabitsch W., Rasplus J.-Y., Roy D., eds. 2010. BioRisk 4 Special Issue; 2 vols., 1028 pp.