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]