A Systematic Study of the Family Rhynchitidae of Japan (Coleoptera, Curculionoidea)

Abstract

Japanese RHYNCHITIDAE are systematically reviewed and revised. Four tribes, 17 genera and 62 species are recognized. Original and additional descriptions are given, with illustration sof and keys to their taxa. The generic and subgeneric names of Voss' system are reviewed from the viewpoint of nomenclature. At the species level ,12 new species Auletobius planifron sN,otocyrtus caeligenus ,Involvulus flavus, I. subtilis, I. comix, I. aes, I. lupulus, Deporaus tigris, D. insularis, D. eumegacephalus, D. septemtrionalis and D. rhynchitoides are described and 1 species Engnamptus sauteri are newly recorded from Japan. Six species and subspecies names Auletes carvus, A. testaceus and A. irkutensis japonicus, Auletobius okinatuaensis ,Aderorhinus pedicellari snigricolli sand Rhynchites cupreus purpuleoviolaceu sare synonymized under Auletobius puberulus ,A. jumigatus, A. uniformis ,Ad. crioceroide sand I. cylindricollis, respectively. One new name Deporaus vossi is given as the replacement name of the primally junior homonym D. pallidiventris Voss, 1957 (nec Voss, 1924). Generic and subgeneric classificatio nis revised in the following points. The genus Notocyrtus is revived as an independent genus including subgenera Notocyrtus s. str. ,Exochorrhynchites and Heterorhynchites. Clinorhynckites and Habrorhynchites are newly treated as each independent genera. Caenorhinus is newly treated as a valid subgenus of the genus Deporaus. The genera Neocoenorrhinus and Piazorhynckites are newly synonymized under Notocyrtus and Agilaus, respectively, in generic and subgeneric rank. A subgeneric name, Aphlorhynehites subgen. nov., is established for the 8th subgenus of the genus Rhynchites in Voss' system, which was incorrectly called as Haplorhynchites. Haplorhynchites is treated as an independent genus, following Ter-Minassian (1950). Consequently the following names are newly combined : Notocyrtus sanguinipennis, N. interruptus, N. assimilis and Haplorhynchites funebris. Phylogenetic relationships of Japanese species are considered. Existing taxa in the system are reevaluated on the basis of estimated phylogeny.