Rhynchaenus is a genus of beetles alternatively placed in the subfamily Rhynchaeninae or in Curculioninae, of family Curculionidae.^[1][2] It previously included members of the genus Orchestes, but is now restricted to a vastly smaller group of species, all of which occur in Europe, Japan, or North Africa and feed on plants in the family Asteraceae.^[3] Reports of its occurrence in North America refer to Orchestes species.^[4]

A large number of species have been historically classified as Rhynchaenus, although nearly all former species now are placed in different genera.^[5][6]

• Anderson, R.S. 1989. Revision of the subfamily Rhynchaeninae in North America (Coleoptera: Curculionidae) (subscription required). Transactions of the American Entomological Society 115(3):207–312.
• Anderson, R.S., O'Brien, C.W., Salsbury, G.A. and Krauth, S.J. 2007. Orchestes alni (L.) newly discovered in North America (Coleoptera: Curculionidae) (subscription required). Journal of the Kansas Entomological Society 80(1):78–79.

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