Taxonomic revision of the tribe Brontini (Coleoptera: Silvanidae) in Japan and Taiwan with reference to their larval and pupal morphologies

The species of the tribe Brontini from Japan and Taiwan are revised. Two new species, Megahyliota cryptolucidus sp. nov. and Macrohyliota sculptus sp. nov. (misidentified with Mac. gracilicornis (Arrow)), are described. Also described are mature larvae of four species, Dendrophagus longicornis Reitter, Mac. sculptus sp. nov., Meg. cryptolucidus sp. nov., and Uleiota arboreus (Reitter), and pupae of three species, Mac. sculptus sp. nov., Meg. cryptolucidus sp. nov., and U. arboreus. These are the first larval descriptions for Macrohyliota and Megahyliota as well as the first pupal illustrations and detailed descriptions for the entire tribe Brontini. Macrohyliota gracilicornis and U. planatus (L.) should be excluded from the Japanese fauna. The diagnostic characters among brontine larvae and the character states of larval morphologies between Brontini and Telephanini are also discussed.