Taxonomy Of The Genera Oedichirus And Procirrus (Coleoptera:Staphylinidae:Paederinae) From China

Members of the staphylinid genera Oedichirus Erichson,1839 and Procirrus Latreille,1829(Coleoptera: Staphylinidae: Paederinae: Pinophilini: Procirrina)can be commonly found in leaf litter layer of forest or surroundings near stream.The body size of them are medium to large.All the species are predators feeding on small invertebrates in damp environment.They play important roles in ecosystem and have a close relationship with human beings.They are also regarded as an entomological indicator of environment and an important part of natural resources.At present,395 species of Oedichirus have been known worldwide including Palaearctic region,the Oriental region,the Australian region,the Neotropic region and the Paleotropical region.Among them,13 species are recorded from China.There are29 species of Procirrus have been known worldwide,widely scattered in the Palaearctic region,the Oriental region,the Australian region,and the Paleotropical region.One species originally described from Bangladesh are also recorded from Hongkong and Taiwan.Relevant reports on Oedichirus and Procirrus in China are mostly published by foreign scholars.The domestic research foundation is relatively weak,and there is no systematic research on these groups.By examining specimens collected from 9provinces of China,using traditional morphological taxonomic methods,a taxonomic study on Chinese species of Oedichirus and Procirrus is treated here.The results of the study can be summarized as follows:1.Sixteen species of Oedichirus were recognized,of which eleven species are new species: O.menglunensis sp.nov.,O.qiniangensis sp.nov.,O.nabangensis sp.nov.,O.liushengnanae sp.nov.,O.falsinigellus sp.nov.,O.hamus sp.nov.,O.hujiayaoi sp.nov.,O.menglongensis sp.nov.,O.maolanensis sp.nov.,O.jinxiuensis sp.nov.;of which five species are known species: O.astoni Rougemont,2017,O.longipennis Kraatz,1859,O.flammeus Koch,1939,O.pengzhongi Li,Xie & Li,2015,O.damingensis Li,Xie & Li,2015.Three species of Procirrus were recognized,of whichone new species: P.hainanensis sp.nov.;one new record of China species: P.fusculus;one known species: P.lewisii.2.All species treated in this paper were described in detail and compared with related species.Habitus and major diagnostic characters for all species were illustrated.3.Databases of the genera Oedichirus and Procirrus were built.4.Lists for Chinese species of Oedichirus and Procirrus were provided.5.Keys to Chinese species of Oedichirus and Procirrus were separately presented.6.The distributions of Oedichirus and Procirrus in china were mapped,and their distributional pattern were analyzed.