A revision of the Chilean Brachyglutini. Part 1. Some taxonomic changes in Brachyglutini and preliminary diagnosis of Achilia Reitter, 1890 (Coleoptera: Staphylinidae: Pselaphinae).

This first part of the review of the Chilean Brachyglutini is devoted to analyzing the taxonomic situation within the tribe, and some taxonomic changes are proposed: 1. The subtribe Baradina nominally remains a part of Brachyglutini; 2. Based on the presence of median gular longitudinal elevation laterally delimited by a pair of sutures in Brachyglutina (apomorphy which characterizes the subtribe) the following genera are transferred to Brachyglutina: a) Mangalobythus Tanokuchi from Bythinini; b) Sogaella Jeannel from Iniocyphini; c) Arachis Raffray, Diroptrus Motschulsky, and Obricala Raffray from Brachyglutini incertae sedis (Newton & Chandler, 1989); and also Berlaraxis Jeannel and Araneabaxis Chandler are transferred from Brachyglutini to Iniocyphini subtribe Iniocyphina; 3. Based on the presence of two long, longitudinal lateral carinae on the metathorax the subtribe Pselaptina is reestablished (stat. resurr.). A preliminary diagnosis of Achilia Reitter, 1890 is also given.