The genus CylindrinotusFaldermann, 1837, with species distributed in Transcaucasia, central and eastern Anatolia, northern Iran, and Syria, is reviewed. The taxonomic history and general morphology of adults of the genus are considered. The new speciesCylindrinotus charlesi Nabozhenko is described from Erzurum Province, Turkey. A new synonymy is proposed: Helops (Cylindrinotus) constrictusSeidlitz, 1896 = Helops (Cylindrinotus) funestoides Reitter in Bodemeyer, 1900. Lectotypes are designated for Cylindrinotus batesiAllard, 1876, Helops (Cylindrinotus) nitidusSeidlitz, 1896, H. funestoides, and Helops (Cylindronotus) bellatorReitter, 1902. The holotype of uncertain species Cylindrinotus gibbosus (Seidlitz, 1896) was studied, and a redescription and notes on distribution of this species are given. Bibliography, synonymy, and key for all species are given.