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An annotated distributional checklist of the Coccinellidae of Bhutan is presented, enumerating 91 species, 17 of which are here recorded for the first time Shirozuella tibetina Wang, Ge Ren, 2012, Jauravia limbata (Motschulsky, 1858), Scymnus bourdilloni (Kapur, 1958), Illeis confusa Timberlake, 1943, Calvia albida Bielawski, 1972, Harmonia expalliata Sicard, 1913, H. octomaculata (Fabricius, 1781), H. sedecimnotata (Fabricius, 1801), Micraspis allardi (Mulsant, 1866), M. discolor (Fabricius, 1798), M. SS31 univittata (Hope, 1831), Oenopia adelgivora Poorani, 2002, O. billieti (Mulsant, 1853), O. smetanai Canepari, 1997, Afissula mysticoides (Sicard, 1913), Henosepilachna processa Li Cook, 1961 and H. septima (Dieke, 1947). One species, Propylea japonica (Thunberg, 1781), has to be removed from the list.                Nine species and two subspecies are hitherto only reported from the territory of Bhutan. The Bhutanese coccinellid fauna is still insufficiently known.Scaura Schwarz is a small, widely distributed Neotropical genus of stingless bees whose workers and males have the metabasitarsus as broad as or wider than the metatibia. The genus currently includes four valid species. A species complex composed of three additional species are described here as new (S. amazonica sp. n., S. aspera sp. n. and S. cearensis sp. n.). In addition to the descriptions and redescriptions of the species of Scaura, an illustrated identification key is presented, as well as updated geographical records.The genera Deltaspis Audinet-Serville, 1834 and Muscidora, Thomson, 1864 (Coleoptera Cerambycidae Cerambycinae Trachyderini) are revised. Two new genera Neoxoplus gen. nov. and Deltaspiopsis gen. nov., are described. Two species previously included in Deltaspis [D. cruentus, (LeConte, 1862), and D. ivae Beierl Barchet-Beierl, 1999] are transferred to the new genus Neoxoplus with N. cruentus designated as the type species. Four other Deltaspis species [D. alutacea Bates, 1885, D. marginella Bates, 1891, D. nigripennis Bates, 1880, and D. tumacacorii (Knull, 1944)] are transferred to Muscidora Thomson, 1864. Two species [D. disparilis Bates, 1891, and D. variabilis Bates, 1891] are transferred to the new genus Deltaspiopsis with D. disparilis designated as type species, and the remaining species [D. moesta Bates, 1885, D. rubens Bates, 1885, and D. subopaca Chemsak Linsley, 1982] are transferred to Crossidius LeConte, 1851. Keys to closely related genera, above mentioned genera and species along with illustrations of the available species in color are included. New species described include Muscidora bezarki sp. nov. from south-central Mexico (Puebla, Oaxaca); Muscidora coriacea sp. nov. from southeastern Mexico (Oaxaca and Chiapas); Muscidora nigrescens clinei subsp. nov. (Jalisco); and Muscidora similis sp. nov. from western Mexico (Sinaloa and Sonora).Twelve species from the Bay of Bengal, the Red Sea, the western Indian Ocean, and southwestern Australia are reclassified in Marmorofusus. These include Murex undulatus Gmelin, 1791, a senior synonym of Murex variegatus Perry, 1811 and Fusus laticostatus Deshayes, 1831, formerly regarded as a junior synonym of Marmorofusus nicobaricus (Röding, 1798); Murex verrucosus Gmelin, 1791 (synonyms Fusus tuberculatus Anton, 1839 non Lamarck, 1822, F. marmoratus Philippi, 1846 and F. rudicostatus G.B. Sowerby II, 1880); F. polygonoides Lamarck, 1822 (synonym F. biangulatus Deshayes, 1833); F. tuberculatus (Lamarck, 1822) (synonyms Fusus indicus Anton, 1839, F. maculiferus Tapparone Canefri, 1875, Fusinus t. priscai Bozzetti, 2013 and F. t. fuscobandatus Bozzetti, 2017); Fusus philippii Jonas in Philippi, 1846, an earlier name for Fusus tessellatus G.B. Sowerby II, 1880 (other probable synonyms Fusus exilis Menke, 1843, non Conrad, 1832 and Fusinus dampieri Finlay, 1930, replacement name for F. exilis Menke); Fusus oblitus (Reeve, 1847) (synonym Fusus turrispictus Hedley, 1918); F. leptorhynchus Tapparone Canefri, 1875 (synonym F. subquadratus G.B. Sowerby II, 1880), Fusinus vercoi Snyder, 2004; F. wellsi Snyder, 2004; F. brianoi Bozzetti, 2006; F. verbinneni Snyder, 2006; and F. bishopi Petuch Berschauer, 2017. Fusus toreuma Deshayes, 1843, sometimes misidentified as M. tuberculatus, is a member of the Fusinus colus (Linnaeus, 1758) species group.Beetles of the Socotra Archipelago, Yemen, were catalogued. Altogether, 645 morphospecies from 56 families have been recognised from the Archipelago, of which 516 species (one with an additional two subspecies) were identified to the species level. Twenty-four, mostly widely distributed, species are recorded from the Socotra Archipelago for the first time, and three species are newly recorded for the islands Abd el Kuri (1) and Samha (2). Lithocharis socotrana Assing, 2015 (Staphylinidae), described from Socotra, is recorded from continental Yemen for the first time. Five incomplete or incorrect previous records are corrected. A total of 305 (47%) of all recorded species are considered to be endemic to the Socotra Archipelago. A total of 62 (10%) species are widely distributed Afrotropical species, and 35 (5.5%) East African species, often reaching also the Arabian Peninsula; 16 (2.5%) species occur in the eremial zone of Saharo-Arabian (or Saharo-Sindian) region. Only 14 (2%) species were previously known solely from the Arabian Peninsula; 30 (4.5%) species have cosmopolitan (and often anthropogenic) distributions; 28 (4.5%) species are widely distributed in (sub)tropical areas of the Old World; and 26 (4%) species have a predominantly western Palaearctic distribution. At present, 129 (20%) morphospecies remain unidentified; however, we expect that many of them represent as yet undescribed taxa endemic to the Archipelago.This paper presents a Catalogue of oribatid mites (Acari, Oribatida) recorded from the Malay Archipelago covering 113 years from 1905 to the end of 2018. The Malay Archipelago comprises countries located in the maritime area of Southeast Asia between the Indian and Pacific Oceans, viz., Malaysia, Singapore, Brunei, Indonesia, East Timor and the Philippines. Information compiled for each species includes references to the original description, subsequent re-combinations of specific name with other genera, and junior synonyms, if any, as well as the type locality, type habitat, later recorded habitats, and geographic distribution within and outside the Malay Archipelago. A historical review of explorations and taxonomic studies on oribatids in the various countries is also provided.                A total of 1,030 valid species including subspecies and 6 doubtful species have been recorded from the Malay Archipelago from 1905 to 2018. The valid species belong to 323 genera, 98 families and 34 superfamilies in all of the five infraorders and two hyporders of the Suborder Oribatida.