Endonura cretensis (Ellis, 1976) is redescribed, disscused and illustrated on the basis of the holotype and new specimens. The species is recorded from Israel for the first time. Within the genus it is strongly isolated and the most similar to E. urotuberculata Pomorski et Skarżyński, 2000 from Bulgaria.

A new genus with two new species and one new species of fossil elaterids are described: Paradesmatus baiae sp. nov., Paradesmatus ponomarenkoi sp. nov., Protagrypnus robustus sp. nov. These findings document the fossils from the Middle Jurassic Jiulongshan Formation of Eastern Inner Mongolia, China. Fossil elaterids of Mesozoic with large triangular plates of metacoxae have been discovered only from the Upper Jurassic strata of Karatau so far, Paradesmatus baiae with the unique feature will expand our knowledge on the early diversification of elaterids.

Eleven new species of the genera Chinathous and Gnathodicrus from China, Laos, Nepal and Sikkim (North India) are described and illustrated: Chinathous heinzi sp. nov., C. jitiangensis sp. nov., C. juizhaigouensis sp. nov., C. moxiensis sp. nov., C. xinjiangensis sp. nov., Gnathodicrus daliangshanensis sp. nov., G. dehongdaiensis sp. nov., G. laoticus sp. nov., G. nepalensis sp. nov., G. vietnamensis sp. nov., G. zhongdianensis sp. nov., Chinathous lizipingensis (Schimmel et Tarnawski, 2006) is introduced as comb. nov. Gnathodicrus nepalensis sp. nov. is recorded as the first species of the genus Gnathodicrus from Himalaya (Nepal and North India).

Neotype of Hexarhopalus sculpticollis Fairmaire, 1891 is designated. Redescription and photo of habitus is provided. New species records of the genus Hexarhopalus Fairmaire, 1891 are presented with H. pacholatkoi Bečvář et Purchart, 2008 for the first time recorded from Laos.

The species of the genus Asida Latreille, 1802, belonging to the subgenus Polasida Reitter, 1917 are revised on the basis of an important voucher material. Illustrated keys to subgenera of Asida and species of the subgenus Polasida are provided. Asida pazii Pérez Areas, 1865 is a junior synonym of Asida jurinei Solier, 1836, synonymy confirmed. Asida levantina Escalera, 1922 is reconsidered as a bona species. A lectotype is designated for Asida levantina Escalera, 1922.

The paper describes and illustrates the morphology of all preimaginal stages for Ocypus fulvipennis Erichson, 1840 including a detailed account of chaetotaxy. Diagnostic characters of egg, larva and pupa of this species are given. Morphological differences between the first (L₁) and mature (L₃) larval instars cover: chaetotaxy of head, profemur, protibia, tarsungulus, abdominal tergites, paratergites, sternites, parasternites and urogomphi; structure of antenna, maxillae and urogomphi; microstructure of abdominal tergites, proportions of the body parts, body colour and habitus. Some data on its distribution and biology in the field and laboratory conditions are also provided. All immature stages of O. fulvipennis were compared with those of other members of this genus. Instead of size, following distinguishing characters are provided for respective stages: egg — tubercle simple, without projection and equatorial band medium in width; larvae (L₃) — teeth of nasale very sharp and well marked, apotome with sharply pointed apex, segment II of labial palp about 2.4 times longer than segment III; pupa — 12 setiform projections on pronotum, antennae distinctly protruding beyond apex of middle tibia, hind legs reaching ⅔ of length of 4^th morphological segment.

Previously, workers of species belonging to the pachei-group of the genus Myrmica were characterised by having only transverse rugosity on the alitrunk dorsum. The group contained only M. pachei and M. villosa, both endemic to the Indian side of the Himalaya. Three other species were recently described from China (M. taibaensis, M. polyglypta and M. well) that have at least some transverse rugae mixed with other types of sculpture on various parts of the alitrunk dorsum. Examination of new material collected from southern and south-western China and Kashmir revealed 9 new species sharing this feature. Here we redefine the pachei-group to include all 14 species; we review all the species, making a redescription of M. taibaensis and describe the 9 new species: Myrmica sculptiventris, M. schulzi, M. phalacra, M. varisculpta, M. hlavaci, M. pleiorhytida, M. multiplex, M. yunnanensis and M. heterorhytida. Drawings and measurements are provided together with a conventional key to workers of the pachei-group and a diagnostic table of the species.

The following five species of the genus Dioides from China are described as new to science: Dioides furcatus sp. nov., Dioides incurvatus sp. nov., Dioides jinxiuensis sp. nov., Dioides minutus sp. nov. and Dioides rufescinasus sp. nov. A key to separate them is presented.

Three new species of the subfamily Tydeinae: Brachytydeus quasistigmaeus, B. crassidigitosus and B. incertus from Poland are described, figured and located in a key.

A new species Arctoseius wisniewskii sp. nov. (Acari: Ascidae) is described and illustrated. It was found in litter and soil from rock cracks in the Góry Stołowe National Park in Poland.

The following three new species of the genus Tegolophus Keifer from Oriental China are described and illustrated in this paper. They are: Tegolophus carmonae sp. nov. infesting Carmona microphylla (Lam.) G. Don. (Boraginaceae), Tegolophus corylopsus sp. nov. infesting Corylopsis glandulifera Hemsl. (Hamamelidaceae) and Tegolophus miscanthus sp. nov. infesting Miscanthus floridulus (Lab.) Warb (Poaceae).

Two New Guinean species of Thorelliola: T. dissimilis sp. nov. and T. pallidula sp. nov. are diagnosed, described and illustrated, including new data on female clypeal setae and internal genital accessory glands. Generic relationships of Thorelliola are commented.