Cratopetalura petruleviciusi gen. et sp. nov. is the third genus and species of the Mesozoic petalurid family Cretapetaluridae from the Lower Cretaceous of Brazil. With the recent discovery of another representative of this family in the Lower Cretaceous of England, it demonstrates the great diversity of this group during this period.

Paula micra gen. et sp. nov. have been described from Java. The new taxon has been included in the subfamily Amelinae and it bears some similarity to Haldwania liliputana Beier.

A new species of Polydictya Guérin-Méneville, 1844, P. duffelsi sp. nov., is described from Sumatra and illustrated. The species is compared with the other Polydictya species showing hind wings red basally and an identification key to those species is proposed. Hind wing colour variation is reported for P. chantrainei Nagai et Porion, 2004 and the species is mentioned for the first time from Myanmar and Laos. A distribution map is given for P. duffelsi and P. chantrainei.

A new staphylinoid beetle, Capnosolius ariasae gen. et sp. nov. is described from the Valdivian region of Chile. Members of this species display morphological affinities with both Leiodidae and Agyrtidae, including a weakly explanate pronotum, leiodid-like antennal club, and loss of aedeagal parameres. This new species is placed within its own genus on the basis of morphological uniqueness; the genus is tentatively placed within Camiarinae: Neopelatopini, with a discussion of support from morphological and DNA evidence. A key to described genera and a species checklist are provided for world Neopelatopini.

New genus Palpotreta is proposed within the subfamily Ototretinae and one new species P. ramicornis sp. nov. from Sri Lanka is proposed as new to science. Illustrations of diagnostic characters are given.

A new species of the tenebrionid genus Rhopalobates Fairmaire, 1897 (tribe Cnodalonini Gistel, 1856, subfamily Stenochiinae Kirby, 1837) is described from Burma and Bhutan. Until now only the type species R. villardi Fairmaire, 1897 was known, distributed over a wider area in the eastern Himalayas (Sikkim), southern China (Sichuan, Fujian, Guangdong) and in Indochina. Both species display a distinct sexual dimorphism.

Prunaspila bezdeki sp. nov. is described from Mozambique, compared with its relatives and a photo of habitus is provided. New locality records of the genus Prunaspila Koch, 1950 and distributional map of all known species are presented.

Valdivelater gen. nov., with two included species, V. krahmeri sp. nov. and V. oncolensis sp. nov. are described from the Valdivian region of Chile. The relationships of this genus to other Protelaterini and the position of the tribe within the family Elateridae are discussed, and a key to protelaterine genera and related tribes is provided.

Se describe Valdivelater gen. nov., el cual incluye dos especies V. krahmeri sp. nov. y V. oncolensis sp. nov. del Centro Sur de Chile. Se discuten las relaciones de este y otros géneros de Protelaterini, y su posición sistemática en la familia Elateridae, se proporciona además una clave de los géneros de Protelaterini y de las tribus relacionadas con este.

Two African genera Gyponychus Pascoe and Synaptoplus Gerstrecker of the tribe Cneorhinini (Curculionidae: Entiminae) are revised. Phylogenetic analysis of the two genera, with Cneorhinus sensu lato as the out-group, suggests a necessity of changes in the generic-level classification. Gyponychus adomaitisi sp. nov from Mozambique is described. Gyponychus nigripes Hustache, 1931 (initially described as Gyponychus porosus var. nigripes Hustache, 1931) and Gyponychus schliebeni (Günther, 1943) (described as Synaptoplus collaris schliebeni Günther, 1943) are raised to the species rank. Synaptoplus Gerstrecker, 1873 is a junior homonym of Synaptoplus Gerstrecker, 1871. The new synonym is proposed Synaptoplus foveolatus (Günther, 1943) = Gyponychus nigripes Hustache. Lectotypes of Gyponychus porosus var. nigripes Hustache, 1931, Gyponychus foveolatus Günther, 1943, Gyponychus quinquemaculatus Hustache, 1931, Gyponychus socius Hustache, 1931, Synaptoplus collaris Günther, 1943 and Synaptoplus dentipennis Hartmann, 1904 are designated. Descriptions, illustrations and identification keys are provided.

The morphology of all juvenile stages of Eniochthonius minutissimus (Berlese, 1904) is redescribed and illustrated, that of the larva and successive nymphs of Hypochthonius rufulus C. L. Koch, 1835, is described and illustrated for the first time, and the ontogeny of both species is compared. These species differ mainly in the body shape, size and colour, the nature of transverse scissures on the dorsum of hysterosoma, the presence of the e-series setae, some setal formulae (gastronotal, genital, aggenital and segments PS-AN), and ontogeny of leg setation.

All juvenile stages of Limnozetes ciliatus (Schrank, 1803) and deuto- and tritonymph of L. palmerae Behan-Pelletier, 1989 are redescribed and illustrated, and the larva and protonymph of L. palmerae are described and illustrated for the first time. Both species are similar with respect to the body shape, but differ mainly in the shape of some setae in the juveniles, presence of aggenital setae, formula of genital setae, and sculpture of cerotegument in the adult. Relations of species within Limnozetes Hull, 1916 are discussed, and keys to the larvae and nymphs of four European species of this genus are provided.

Allothrombium meridionale Berlese, 1910 is redescribed based on type material originating from Italy and specimens collected in Mosel Valley, Germany. Characteristics of larvae, deutonymphs and adults are provided. Data on habitat specificity and phenology of the species as well as on developmental time of larvae are given. Morphological abnormalities have been observed under laboratory conditions in larvae which hatched from eggs not exposed to lower temperatures, contrary to larvae that hatched from eggs after chilling. Larvae of Allothrombium triticium Zhang, 1995 sensu Goldarazena and Zhang (1997), reported from Spain, are considered to represent A. meridionale. An identification key to species of Allothrombium, including central European members of the genus known from adults and world species known from larvae is provided. Phanolophus oedipodarum (Frauenfeld, 1868), is new to the fauna of Germany.