Eleven new species and a new country record of Pselaphodes (Coleoptera: Staphylinidae: Pselaphinae) from China, with a revised ch ecklist of world species

Abstract

<jats:title>Abstract</jats:title> <jats:p>Eleven new species of the ant-loving beetle genus <jats:italic>Pselaphodes</jats:italic> Westwood, 1870 (Pselaphinae: Tyrini) are described from China: <jats:italic>P. aduncus</jats:italic> sp. nov. (Yunnan), <jats:italic>P. anjiensis</jats:italic> sp. nov. (Zhejiang), <jats:italic>P. antennarius</jats:italic> sp. nov. (Guizhou), <jats:italic>P. baoxingensis</jats:italic> sp. nov. (Sichuan), <jats:italic>P. daweishanus</jats:italic> sp. nov. (Yunnan), <jats:italic>P. elongatus</jats:italic> sp. nov. (Yunnan), <jats:italic>P. maolanensis</jats:italic> sp. nov. (Guizhou), <jats:italic>P. paraculeus</jats:italic> sp. nov. (Guangxi, Guizhou), <jats:italic>P. posticus</jats:italic> sp. nov. (Jiangxi), <jats:italic>P. prominulus</jats:italic> sp. nov. (Jiangxi, Guangxi), and <jats:italic>P. songxiaobini</jats:italic> sp. nov. (Xizang). <jats:italic>Pselaphodes spinosus</jats:italic> Champion, 1925, originally known from northern India, is newly recorded from China (Xizang). Male habitus and major diagnostic characters of all treated species are illustrated. A revised checklist and a map summarizing the distributions of the world species of <jats:italic>Pselaphodes</jats:italic> are provided.</jats:p>

In the twilight zone—The head morphology of Bergrothia saulcyi (Pselaphinae, Staphylinidae, Coleoptera), a beetle with adaptations to endogean life but living in leaf litter

“…Taxonomic studies of Pselaphinae and the exploration of the diversity of the group are thriving, with an impressive number of new extant and extinct species from different world regions described in the last years (e.g., Hlav ač et al, 2019;Huang et al, 2018;Nakl adal & Hlav ač, 2018;Park & Chandler, 2017;Parker, 2016;Yin et al, 2019).…”

“…Taxonomic studies of Pselaphinae and the exploration of the diversity of the group are thriving, with an impressive number of new extant and extinct species from different world regions described in the last years (e.g., Hlaváč et al, 2019; Huang et al, 2018; Nakládal & Hlaváč, 2018; Park & Chandler, 2017; Parker, 2016; Yin et al, 2019). However, the investigation of the systematic relationships within the highly diverse subfamily is still in a preliminary stage, despite substantial contributions of Jeannel (1950), Newton and Thayer (1995), Chandler (2001), Kurbatov (2007), Kurbatov et al (2007), Kurbatov and Cuccodoro (2019), Kurbatov and Sabella (2008, 2015), Parker (2016) and others.…”

Notes on the Pselaphodes Westwood complex (Coleoptera, Staphylinidae, Pselaphinae) of Hubei, China, with description of a new species and additional faunistic data

“…This species is placed as a member of the Walkeri group ( sensu Huang et al 2018a ) based on the asymmetric male antennomeres 7. The subtriangular antennomeres 9 of the male resemble those of P. anjiensis Huang, Li & Yin (Zhejiang), P. antennarius Huang, Li & Yin (Guizhou), P. pseudowalkeri Yin & Li (Zhejiang, Fujian, Jiangxi), and Pselaphodes walkeri (Sharp) (Zhejiang), but the new species can be readily separated by the broadly impressed antennomeres 10, basally constricted and apically broadened antennomeres 11, moderately long metaventral processes, the spination of the legs, as well as the configuration of the aedeagus.…”

“…As of 1 st May, 2024, 179 species of this complex have been described ( Newton 2022 ). The most diverse genus, Pselaphodes Westwood, contains 87 species (e.g., Huang et al 2018a , 2018b ; Huang and Yin 2019 , 2020; Yin 2019 ; Yin and Li 2021 ), followed by Labomimus Sharp with 48 species (e.g., Zhang and Yin 2019 ; Zhang et al 2019 ; Li and Yin 2020 ; Yin and Li 2021 ), Linan Hlaváč with 17 species (e.g., Yin et al 2011a ; Yin and Li 2013a ; Zhang et al 2018 ; Zhao et al 2019 ), Lasinus Sharp with 12 species ( Bekchiev et al 2013 ; Yin et al 2014 ), and the other, smaller genera Nomuraius Hlaváč ( Huang and Yin 2018 ), Paralasinus Hlaváč & Nomura ( Hlaváč and Nomura 2001 ), Taiwanophodes Hlaváč ( Bekchiev 2010 ), Dayao Yin, Li & Zhao ( Yin et al 2011b , 2013a ), and Indophodes Hlaváč ( Hlaváč 2003 ), each comprising no more than five species.…”

Description of a new Pselaphodes Westwood (Coleoptera: Staphylinidae: Pselaphinae) from Vietnam

“…The diversity of habitats and environmental conditions in Vietnam implies that the diversity of pselaphine fauna may be much greater. A total of 65 species of Pselaphodes (Tyrini) have been described, all from the Oriental region - China, Nepal, India, Sri Lanka, Thailand, the Philippines and East Malaysia (see Huang et al 2018 for checklist and distributional map) and two additional unnamed species were recently reported from Vietnam (Nomura and Pham 2019).…”