Corthylus columbianus
Adult, at left, with two pupae in brood cells
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Arthropoda
Class:	Insecta
Order:	Coleoptera
Family:	Curculionidae
Genus:	Corthylus
Species:	C. columbianus
Binomial name
Corthylus columbianus Hopkins, 1894

Corthylus columbianus, also known as the chestnut timber worm or the Columbian timber beetle, is a beetle of the family Curculionidae.

• "Corthylus columbianus". Integrated Taxonomic Information System. Retrieved 19 November 2010.
• Kabir, A. K. M. F.; Giese, R. L. (September 1966). "The Columbian Timber Beetle, Corthylus columbianus (Coleoptera: Scolytidae). II. Fungi and Staining Associated with the Beetle in Soft Maple". Annals of the Entomological Society of America. 59 (5): 894–902. doi:10.1093/aesa/59.5.894.
• McManus, M. L.; Giese, R. L. (1 September 1968). "The Columbian Timber Beetle, Corthylus columbianus. VII. The Effect of Climatic Integrants on Historic Density Fluctuations". Forest Science. 14 (3). Society of American Foresters: 242–253. Retrieved 18 November 2010.

• Media related to Corthylus columbianus at Wikimedia Commons