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Platynectes(Gueorguievtes) davidorumsp. nov. is described, including all larval instars, from hygropetric habitats in Fujian and Zhejiang provinces, eastern China. The new species can be easily distinguished from all other Asia PlatynectesRégimbart, 1879 with dorsally strongly convex habitus, distinctly impressed double reticulation of elytra, short appendages and the shape of median lobe of aedeagus. Collected larvae were successfully associated with adults using a molecular approach and the barcode for the new species is provided as well as the phylogenetic position based on the mitochondrial cytochrome oxidase I gene; they are described and illustrated, with detailed morphometric and chaetotaxic analyses of the cephalic capsule, head appendages, legs, last abdominal segment, and urogomphi. The classification of the new species within the subgenus GueorguievtesVazirani, 1976, and its adaptation to hygropetric habitats are briefly discussed.

Two new species of the genus GlischrochilusReitter, 1873, subgenus LibrodorReitter, 1884: Glischrochilus(Librodor) pilulasp. nov. (Laos) and Glischrochilus(Librodor) ruzickaisp. nov. (China: Yunnan, Sichuan; Myanmar) are described, figured and compared with other species of the genus. Glischrochilus egregius(Grouvelle, 1895) is formally synonymised with G. egregius cyclopsJelínek, 1975, syn. nov. and G. egregius monticolaJelínek, 1975, syn. nov. – these two forms were established based on different body colouration; however, the study of extensive material revealed that it is variable independently of its geographic origin. The identity of Ips janthinusReitter, 1877 from Tasmania (previously included in Glischrochilus) is discussed and the species is formally synonymised with Thallis ianthinaErichson, 1842 (Erotylidae). New country records from China, India, Laos, Thailand and Vietnam, or new Chinese provincial records are provided for 14 species. A world checklist of the genus Glischrochilusis appended.

Type specimens from the collection of beetles (Coleoptera) deposited in the Department of Entomology, National Museum, Prague, are currently being catalogued. In this part of catalogue dealing with staphylinine subfamilies Euaesthetinae, Leptotyphlinae, Megalopsidiinae, Oxyporinae, and Steninae we present information on types of four species of Euaesthetinae, two species of Leptotyphlinae, six species of Megalopsidiinae, one species of Oxyporinae, and 130 species of Steninae. Except for the general collection, the type material came mostly from the recently acquired collection of the late Lubomír Hromádka.

Species of the genus Epuraea Erichson, 1845 from New Zealand are revised and redescribed. The New Zealand fauna comprises six species. One new species, Epuraea glabrata sp. nov. is described. Epuraea mayendorfii (Reitter, 1873) is provided as a valid replacement name for Nitidula lateralis (White, 1846), not Nitidula lateralis C. R. Sahlberg, 1820. One new synonymy is proposed, Epuraea mayendorfii (Reitter, 1873) = Epuraea zealandica Sharp, 1878, syn. nov.

The cryptic slime-mold beetle Sphinduscf. rendilianusLesne, 1922, described originally from Kenya, and so far known only from the holotype, is recorded from Socotra Island based on five specimens from recent collecting efforts. This is the first report of the family Sphindidae from the archipelago.

Altogether, 1,564 species taxa (identified at least to the genus level) from 25 orders of Hexapoda have been recorded from the Socotra Archipelago to date. In addition, members of Diplura and Ephemeroptera are known from the archipelago as well, but they have not been identified so far. The most speciose order in Socotra are beetles (Coleoptera) with 540 species. The total number of endemic taxa described from the archipelago is 662 species, which represents 42% of all known species. The vast majority of species is known from the main Socotra Island (1,520 species, 635 endemic taxa). The diversity of insects in Socotra is briefly commented on and compared with the nearest archipelago – the Seychelles.

Type specimens from the collection of beetles (Coleoptera) deposited in the Department of Entomology, National Museum, Prague, are currently being catalogued. In this part of catalogue dealing with scarabaeoid families Lucanidae and Passalidae, we present information on types of Lucanidae (five taxa of Lucaninae, four taxa of Syndesinae), and Passalidae (one taxon of Aulacocyclinae, ten taxa of Passalinae). Passalids, all from Nickerls' collection, were previously studied by August Ferdinand Kuwert; comments are given also on specimens of 12 taxa labelled as types incorrectly.