Cossyphodes asiricus sp. nov. is described from an isolated relict mountainous forest in the Asir Mts. in south-western Saudi Arabia. This myrmecophilous species was found in a debris chamber of a Pheidole ant nest. It differs from the Palaearctic and adjacent Ethiopian congeners mainly by the development and orientation of the pronotal and elytral keels. Paramellon sociale was collected on the eastern side of the Arabian Peninsula in the United Arab Emirates in a completely different, but not isolated, and distinctly drier habitat. Both species are photographed, the localities are mapped, and some notes on biology and ecology are given.

The hitherto monotypic subgenus Lasiocassis Gressitt, 1952 of the genus Cassida Linnaeus, 1758 is redefined and reviewed. Cassida vespertina Boheman, 1862 is redescribed and a new species, Cassida koreana, is described from South Korea. The subgenus is distributed in the eastern part of Palaearctic Region south to Taiwan.

Eight new species of the tribe Quasimusini Schimmel et Tarnawski, 2009 from China, Indonesia, and Himalaya (Bhutan and Sikkim) are described and illustrated. New records on two known species from Laos are given. Wittmeroquasimus irianjayensis sp. nov. is the first of the genus Wittmeroquasimus, and Striatoquasimus carinatissimus sp. nov. is the second species of the genus Striatoquasimus recorded from Indonesia. Keys to the species of the genus Wittmeroquasimus from China and from Himalaya are provided. New species: Quasimus wrasei sp. nov., Striatoquasimus carinatissimus sp. nov., Wittmeroquasimus fujianensis sp. nov., W. holzschuhi sp. nov., W. irianjayensis sp. nov., W. shiniushanensis sp. nov. and W. sikkimensis sp. nov.

This is the second paper of a series dealing with the Chinese fauna of the large genus Pselaphodes Westwood, 1870. Twelve new species and a new synonym are presented: P. bomiensis sp. nov. (Xizang); P. biwenxuani sp. nov. (Xizang); P. condylus sp. nov. (Guizhou); P. cuonaus sp. nov. (Xizang); P. fengtingae sp. nov. (Zhejiang); P. gongshanensis sp. nov. (Yunnan); P. hanmiensis sp. nov. (Xizang); P. jizushanus sp. nov. (Yunnan); P. meniscus sp. nov. (Sichuan); P. parvus sp. nov. (Guizhou); P. pectinatus sp. nov. (Hainan); P. wuyinus Yin et al., 2010 syn. nov. = P. tianmuensis Yin et al., 2010; and P. yanbini sp. nov. (Guizhou). New distributional data and discussion on intraspecific variations of P. tianmuensis and P. aculeus are provided. An updated key is given to assist in distinguishing all so far known Chinese species of Pselaphodes. A checklist of world species of Pselaphodes is also provided.

The taxonomical and systematic status of the Oriental species of Hister was analyzed. Hister bitumineus is newly described herein. The following new synonyms have been established: H. apicelaevis Desbordes, 1919 = H. metallicus: Lewis, 1885, syn. nov., H. encaustus Marseul, 1854 = H. duplicatus Marseul, 1854, syn. nov., H. inexspectatus Desbordes, 1923 = H. aheneus Cooman, 1938, syn. nov., H. japonieus Marseul, 1854 = H. fessus Marseul, 1862, syn. nov., H. pransus Lewis, 1892 = H. pauli Desbordes, 1916., syn. nov., H. pteromalus Marseul, 1862 = H. divisifrons Schmidt, 1895, syn. nov. = H. brahminius Lewis, 1900, syn. nov. and H. thibetanus Marseul, 1857 = H. sohieri Marseul, 1870, syn. nov. = H. dauphini Lewis, 1905, syn. nov. Lectotypes for some species are designated. All the species are keyed and a general distribution is given for each of them. H. congener Schmidt, 1885 is new to the Oriental (Bhutan) and H. pullatus Erichson, 1834 to the Ethiopian (Ivory Coast) Region.

Xorides (Moerophora) dorotae Hilszczański sp. nov. and X. (Xorides) minos Hilszczański sp. nov. from Crete are newly described and figured. Species of Xoridinae (Hymenoptera: Ichneumonidae) from Greece are listed. Only X. corcyrensis (Kriechbaumer) and Odontocolon appendiculatum (Gravenhorst) had been known so far from the country. Odontocolon quercinum Thomson, X. berlandi Clèment, X. propinquus (Tschek), X. praecatorius (F.) and X. gravenhorstii Curtis are new for the Greek fauna. Aegomorphus krueperi Kraatz (Coleoptera: Cerambycidae) is recorded as a host for X. propinquus.

So far, besides some specialised Neotropical ant species of the genus Cephalotes Latr., the Palaearctic Myrmica schencki Viereck, M. rubra (L.) and Tetramorium cf. caespitum (L.) were known to be, at least facultative, pollen-eaters. The present paper reports on nine other common Palaearctic ant species occasionally feeding on pine pollen: Myrmica ruginodis Nyl., F. pratensis Retz., F. cinerea Mayr, F. clara For., F. sanguinea Latr., F. exsecta Nyl., Lasius niger (L.), L. platythorax Seifert, and L. fuliginosus (Latr.) and re-confirms pollenivory of M. schencki. Pollenivory of all these species was revealed based on the presence of pollen grains in the alimentary canal of the dissected workers. The possible role of pollen in the diet of ants as a generally omnivorous insect group is discussed.

Five new species found in Pisz Forest (the Polish Lowland) are described: Megaselia basiturgida, M. depililobulus, M. nigricia, M. pallidivanus and M. trochimczuki. M. barbulata (Wood), M. basseti Disney and M. specularis Schmitz are recorded from Poland (Pisz Forest) for the first time.

A redescription of Leptus phalangii (De Geer, 1778) (= L. nemorum (C. L. Koch, 1836), syn. nov., = L. beroni Fain, 1991, syn. nov.) based on adults, deutonymphs and larvae, is supplemented with data on life cycle and ecology of the species. Larvae of L. phalangii developed, under laboratory conditions, into deutonymphs of L. nemorum, species hitherto known only from active postlarval forms. A field-collected female of L. phalangii is designated as the neotype.

The mite Spatulaphorus gorganica Rahiminejad et Hajiqanbar sp. nov. (Acari: Heterostigmatina: Pygmephoridae) collected under elytra of the host beetle, Geotrupes spiniger (Marsham, 1802) (Col: Geotrupidae) is described and illustrated from Oak forests of Golestan province, North of Iran. Moreover, host range of the genus is reviewed and a key to world species of the genus Spatulaphorus is provided.

Seventy three species of jumping spiders are listed from Nigeria in this paper. Among these, the following 26 species are described as new to science: Aelurillus jocquei sp. nov. (♂♀), Ajaraneola mastigophora sp. nov. (♂♀), Brancus occidentalis sp. nov. (♂), Evarcha grandis sp. nov. (♀), Evarcha idanrensis sp. nov. (♀), Habrocestum personatum sp. nov. (♀), Hyllus remotus sp. nov. (♀), Icius olokomei sp. nov. (♀), Langelurillus quadrimaculatus sp. nov. (♂♀), Menemerus nigeriensis sp. nov. (♀), Neaetha maxima sp. nov. (♀), Pachyballus oyo sp. nov. (♂♀), Schenkelia ibadanensis sp. nov. (♂), Stenaelurillus glaber sp. nov. (♂), Stenaelurillus iubatus sp. nov. (♂♀), Stenaelurillus pilosus sp. nov. (♂♀), Stenaelurillus striolatus sp. nov. (♂), Thiratoscirtus alveolus sp. nov. (♀), Thiratoscirtus bipaniculus sp. nov. (♀), Thiratoscirtus gambari sp. nov. (♂♀), Thiratoscirtus harpago sp. nov. (♂), Thiratoscirtus mirabilis sp. nov. (♂♀), Thiratoscirtus monstrum sp. nov. (♀), Thiratoscirtus obudu sp. nov. (♂), Thiratoscirtus vilis sp. nov. (♀) and Thiratoscirtus yorubanus sp. nov. (♂). A new species of Baryphas is described but not formally named here. One new genus, Ajaraneola gen. nov. is described and diagnosed. The female sex of Evarcha bakorensis, Heliophanus robustus, Phlegra gagnoa and Thyene hesperia is described for the first time. Brancus bevisi Lessert, 1925 is proposed as a junior synonym of Brancus muticus Simon, 1902. Two new combinations are proposed, Viciria besanconi Berland & Millot, 1941 and Viciria fuscimana Simon, 1903 are transferred to the genus Brancus. Baryphas albicinctus Berland & Millot, 1941 is removed from synonymy with B. jullieni Simon, 1902. Mithion hesperius Simon, 1910 is removed from synonymy with Modunda aperta Peckham et Peckham, 1903 and transferred to the genus Thyene. The composition of the salticid fauna of this region of West Africa is discussed and compared to that of other regions of Africa.