The subfamily Meligethinae of Taiwan is taxonomically revised. Consequently, the following eight species are recognized: Pria tokarensis NAKANE; Meligethinus plagiatus (GROUVELLE); Meligethes torquatus JELINEK; M. flavicollis REITTER; M. pectoralis REBMANN; M. sadanarii sp. nov.; M. shirozui HISAMATSU; and M. zakharenkoi KIREJTSHUK. P. tokarensis is newly recorded, and M. shirakii HISAMATSU is excluded from the Taiwanese fauna. Habitus, antennae, protibiae, male and female genitalia, and internal sac sclerites of male genitalia of all species are illustrated. Keys to genera and species are presented. Characteristics of the Taiwanese Meligethes fauna are discussed.

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Two new species of the genus Platychora ERICHSON from the Oriental region are described and compared with the related species: Platychora opaca sp. nov. (Thailand, Laos) and P. hisamatsui sp. nov.(Laos). Male of Platychora glabra JELINEK is described and additional distributional data on this species from Malaysia are published.

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The paper presents an overview of species of the genus Mystrops MURRAY, 1864 collected on male inflorescence of the palm Ceroxylon quindiuense (KARST.) H. WENDL. (Arecaceae) in the Andes of Peru. They are Mystrops delgadoi sp. nov., M. hisamatsui sp. nov., M. neli sp. nov., M pulchra sp. nov. and M. rotundula SHARP, 1889. Besides, M. gigas sp. nov., which is closely related to M. hisamatsui sp. nov. and M. neli sp. nov. and probably also associated with the same host plant, is also described from Ecuador.

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A new genus Sadanaria belonging to the tribe Cnodalonini is proposed. Two new species of the new genus and a new species of the genus Apterotheca are described: Sadanaria sakaii sp. nov., S. satoi sp. nov., and Apterotheca hisamatsui sp. nov. Both genera are recorded from the Philippines for the first time. Apterotheca is a genus which has been deemed to be endemic to Australian region.

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Two new species of the group of Lathrobium pollens are described under the names L. hisamatsui and L. tokushimanum. The former was obtained on Mt. Ishizuchi-san of Ehime Prefecture and the latter on two mountains, Mt. Shibakoya-yama and Mt. Takamaru-yama, of Tokushima Prefecture, both in Shikoku, West Japan.

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A new seventh known species of the genus Formosotoxotus belonging to the subfamily Dorcasominae is described from Laos: F. hisamatsui N. OHBAYASHI, sp. nov.

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The Oriental species of the coarctatus species-group of the genus Cyphon are reviewed. Two new subgroups, the tetranematus and the formosanus are newly proposed Following nine new species, and three known species on the basis of additional specimens are described or redescribed: C. montipanus sp. nov.(Laos); C. nobuoi sp. nov. (Indonesia); C. muluensis sp. nov. (Malaysia): C. sadanarii sp. nov. (Vietnam); C. nepalensis sp. nov.(Nepal); C. brevirostris sp. nov. (Nepal); C. masahiroi sp. nov. (Nepal); C. baoshanensis sp. nov. (China); C. tetranematus sp. nov. (Thailand); Cyphon unipunctatus KLAUSNITZER, 1980 (Philippines); C. litigiosus KLAUSNITZER, 1980; C. maculipennis KLAUSNITZER, 1968 (Nepal, new record).

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A new species, Besuchetionella hisamatsui sp. nov., is described from Honshu, Japan. As a result, five species of Besuchetionella are known from Japan. A key to Japanese species is given.

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Japanese species of the genus Leptanchonus in the tribe Anchonini are revised treating eight species as follows: L. minatoi MORIMOTO, 1982 (Japan: Wakayama, Mie and Tokyo), L. yoshidai sp. nov. (Tokushima), L. hisamatsui sp. nov. (Ehime and Kagawa), L. yamamotoi sp. nov.(Ehime), L. kyushuanus sp. nov. (Oita and Fukuoka), L. yakushimanus sp nov. {Yakushima I.), L. amamianus sp. nov. (Amami-Oshima I.), and L. kumei sp. nov. (Okinawa I.). Key to species, photographs and line drawings of genitalia are provided.

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Some taxonomical notes on the genus Indoquedius are given and its systematic position is discussed, with description of a new species, Indoquedius hisamatsui from Malay Peninsula.

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Three new Myospila-species are described and figured from Indonesia. These are Myospila hisamatsui sp. nov., M. xanthohedra sp. nov., and M. nusantara sp. nov.

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Six new leafhoppers of the evacanthine genus Pagaronia from western Japan are described: P. kiiensis, P. hisamatsui, P. basalis all from the Kii Peninsula (Honshu), P. tricarinata from the Kinki District (Honshu), P. takashiroensis from Tokushima (Shikoku), and P. tokarainsulana from Nakanoshima Is. of the Tokara group, south of Kyushu.

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Weevils of the genus Omobaris MARSHALL are recorded from Japan and Taiwan for the first time with descriptions of three new species: 0. chloranthae sp. nov., 0. parvula sp. nov. and 0. hisamatsui sp. nov. A key to the known species is provided. Host association with Chloranthus (Chloranthaceae) of a paleoherb, one of the basal lineages of angiosperms is suggested in addition to the known association with orchids.

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Atomaria (s. str.) hisamatsui sp. nov. is described from Shikoku, Japan. Illustrations of the male genitalia and spermatheca are provided.

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A new species, Misolampidius hisamatsui, is described from Japan. M. hisamatsui is a species isolated in subalpine area of Shikoku, Japan, and characterized by the configuration of pronotum and elytra.

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Three new species of the Trichotichnus leptopus group are described from Kyoto, Gifu, and Nagano, Japan as following: T. (Trichotichnus) hisamatsui from Hachou in Kyoto, T. (T.) akitai from Kasuga-mura in Gifu, and T. (T.) hanmeii from Hase-mura village in Nagano. T. akitai is closely related to T. (T.) latemarginatus.

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The genus Heterlimnius is revised. Seven species are recognized and four of them are newly described: H. ennearthrus sp. nov., H. hisamatsui sp. nov., H. jaechi sp. nov., and H. shepardi sp. nov. Optioservus hasegawai and 0. ater are transferred to Heterlimnius. H. koebelei is synonymized under H. corpulentus. Both 0. kubotai kubotai and 0. k. saghaliensis are synonymized under H. hasegawai. 0. hayashii is synonymized under H. ater. A key is provided for all species of Heterlimnius. Descriptions are provided for the larvae of H. ater, H. corpulentus and H. hasegawai.

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A new species of the genus Ascaphium is described from Taiwan under the name, A. hisamatsui, with illustrations of salient features including male genitalia.

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Two new species of the genus Nazeris collected from Mt. Guniujiang, Anhui Province, China, are described under the name of Nazeris hisamatsui Hu et Li, sp. nov. and Nazeris lingulatus Hu et Li, sp. nov. The male diagnostic characters are illustrated.

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Four new byrrhid species, Horiella hisamatsui sp. nov., Horiella matsunoz sp. nov., H. yoshidai sp. nov., and H. kannoi sp. nov., are described from Shikoku and Kii Peninsula, Honshu.

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A new blind trechine beetle is described from the upper hypogean zone in the northwestern part of Shikoku, Southwest Japan. At first sight, it looks like a member of the genus Ishikawatrechus, but is radically different from it in some essential points, and is considered to form a new genus of its own. The new name Iyotrechus hisamatsui S. UENO et NAITO is given to it in dedication to the late Dr. Sadanari HISAMATSU.

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Krenopelopia joganflava SASA and OKAZAWA, 1991, was considered synonymous with Rheopelopia ornata (MEIGEN, 1838) by KOBAYASHI and ENDO (2008). Although belonging to the genus Rheopelopia, the species is distinct from R. ornata in the tarsal claws without pulvilli. A synonymic note on R. joganflava is given herein.

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Crematogaster (Orthocrema) reticulata sp. nov. is described from the Malay Peninsula and Borneo. This species is easily distinguished from the other Asian Orthocrema ants in having the reticulated sculpture with the head, mesosoma, petiole and postpetiole.

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Two Oriental species of the family Cydnidae, Fromundiellus maurus (DALLAS, 1851) and Parachilocoris semialbidus (WALKER, 1867), are added to the Japanese fauna. Both of them are recorded from the Ryukyu Islands, southwestern Japan, representing the northeasternmost limit of the respective species.

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The author has studied a number of Xantholinini (Coleoptera, Staphylinidae) which are preserved in the National Museum of Nature and Science, Tokyo, collected in Southwest China (Yunnan, Gaoligongshan Mountains), and describes the following species: Mahavana watanabei sp. nov., remotely related to the known Indochinese species of the genus; Nepalinus montanus sp. nov. and Nepalinus yunnanus sp. nov., barely similar to the species known from India and Nepal; Indomorphus yunnanus sp. nov., similar to I. parcus (EPPELSHEIM) from India, Nepal, Bhutan and Yunnan; Atopolinus watanabei sp. nov., closely related to A. kosianus BORDONI from Nepal, and Atopolinus rubescens sp. nov., related to A. ovaliceps (SCHEERPELTZ) from Myanmar, Thailand, South China, Bhutan, and Malaysia, and to A. gaoligong BORDONI from N. Yunnan.

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We found two species of Spalangia, S. gemina and S. nigroaenea, in pupal parasitoids of the domestic fly, Musca domestica, collected in Kochi Prefecture, Japan. In order to identify these species we conducted molecular phylogenetic (sequencing of the 28S ribosomal DNA region) and morphological analyses (using a scanning electron microscope). These two species are recorded from Japan for the first time.

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Sigara (Subsigara) falleni (FIEBER, 1848) is recorded from Japan for the first time.

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Megatoma pubescens (ZETTERSTEDT) is newly recorded from Hokkaido, Japan.

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An armored scale, Lindingaspis ferrisi McKenzie, 1950, is recorded for the first time from Okinawa Island, Japan, and the adult female is briefly described with illustrations of the pygidium. This species resembles L. rossi, L. keniyae and L. mackenziei, but differs from them in having 2-4 small-sized dorsal macroducts near the base of the pygidium.

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