A contribution to knowledge of Procloeon Bengtsson, 1915 from the Chinese mainland (Ephemeroptera: Baetidae) with description of a new species Author Chen, Xiao-Fang 0000-0002-8918-7785 The Key Laboratory of Jiangsu Biodiversity and Biotechnology, College of Life Sciences, Nanjing Normal University, Nanjing 210023, China & cxf 7968 @ 163. com; https: // orcid. org / 0000 - 0002 - 8918 - 7785 Author Zhou, Chang-Fa The Key Laboratory of Jiangsu Biodiversity and Biotechnology, College of Life Sciences, Nanjing Normal University, Nanjing 210023, China text Zootaxa 2023 2023-10-09 5353 2 163 175 http://dx.doi.org/10.11646/zootaxa.5353.2.6 journal article 272247 10.11646/zootaxa.5353.2.6 cda8f7e4-eda2-4280-ab69-19437c20dcdb 1175-5326 8427226 FC763CA9-E0E3-4C6F-AC9E-0E33980816A5 Procloeon Bengtsson, 1915 Procloeon Bengtsson, 1915: 34 . Type species: Cloeon bifidum Bengtsson, 1912: 109 . Pseudocloeon Bengtsson, 1914: 218 ( nec Pseudocloeon Matsumura, 1931: 1473 )(Synonymized by Bengtsson 1915: 34 ). Cloeoptilum Kazlauskas, 1972: 338 (unavailable name) (Synonymized to Pseudocentroptilum by Keffermüller & Sowa 1984: 311 ). Subgenus Procloeon : Kluge & Novikova, 1992: 43 . Procloeon : Bauernfeind & Soldán, 2012: 201 . Remarks. The definition of the genus Procloeon adopted here follows the broad concept of Bauernfeind & Soldán (2012) and Kawai & Tanida (2005) . The main diagnostic characters are: nymphal incisors of mandibles are shallowly divided except P. macronyx , male imaginal genitalia have a broad truncate plate between two forceps but without a prominent or finger-like projection.