The genus Bryaxis Kugelann (Goniaceritae: Bythinini) is the most species-rich genus of the subfamily Pselaphinae and is mainly distributed in the Palearctic region. Although previous studies have documented 14 species in the Korean Peninsula, the true diversity, ecology, and immature stages of the genus are still inadequately known. In this study, five new Korean species are described: B. grandinodussp. nov., B. uljinensissp. nov., B. fabaiformissp. nov., B. girinensissp. nov., and B. nemorosussp. nov. Illustrations of the habitus and other morphological details, and a distribution map are provided. In addition, Bryaxis leechanyoungi Nomura & Lee, 1993 is proposed as a new synonym of B. mahunkai Löbl, 1975 based on the original description and illustrations of diagnostic characters.

A new genus and three new species of the southwestern Australian pselaphine beetles belonging to the supertribe Faronitae are described: Nornalup Park & Chandler, gen. n., based on Nornalup afoveatus Park & Chandler, sp. n., Nornalup quadratus Park & Chandler, sp. n., and Nornalup minusculus Park & Chandler, sp. n. Illustrations of their habitus and major diagnostic characters are provided, as well as distribution maps and a key to species.

The new Australian genus, Australosagola, gen. nov. supertribe Faronitae, is described with seven new species and three new combinations for species previously assigned to Sagola Sharp, 1874. This genus includes Australosagola tasmaniae (Lea, 1911), comb. nov. (type species), A. rugicornis (Oke, 1932), comb. nov., A. helenae (Oke, 1925), comb. nov., A. minsangisp. nov., A. minhoisp. nov., A. jiwookisp. nov., A. sunheeisp. nov., A. doohyungisp. nov., A. jungjoonisp. nov., and A. yongsoonisp. nov. A key, illustrations of major diagnostic characters, habitus images, and distribution maps are provided.

A new genus and three new species of pselaphine staphylinid beetles, supertribe Faronitae, from Western Australia are described as follows: Porongurupgen. nov. is based on Porongurup angulatussp. nov., with the two additional new species, Porongurup clarkeisp. nov. and Porongurup tenuissp. nov. Illustrations of their habitus, and major diagnostic characters as well as a distribution map are included. A key to the species is provided.

Two new species, Veraphis odaesanensissp. nov. and Veraphis myeonggiensissp. nov., of the ant-like stone beetle, are described from the Korean Peninsula. The Korean fauna of Veraphis Casey now comprises three species, including V. engelmarki koreanus. This study provides habitus images and aedeagus illustrations of the new species.