Notes on the Dianous bimaculatus complex with description of a new species from China (Coleoptera, Staphylinidae) Author Tang, Liang Author Huang, Meng-Chi text Zootaxa 2018 2018-12-07 4527 4 560 568 journal article 27834 10.11646/zootaxa.4527.4.6 0517ac4e-b899-47a1-9747-ded2c8475d1d 1175-5326 2612509 6F6BF641-AC42-4A45-968E-4F69B2A99508 Dianous hainanensis Puthz, 1997 ( Figs. 4 , 25–33 ) Dianous hainanensis Puthz, 1997 : 104 . Material examined. China : Hainan : 2♂♂ 1♀ , Ledong County , Jianfengling , 16.XI.2006 , Li-Zhen Li leg. (SHNU); 1♀ , Lingshui County , Diaoluoshan , alt. 900 m , 18.XI.2006 , Li-Zhen Li leg. ( SHNU ) ; 3♂♂ 1♀ , Ledong County , Jianfengling , 18°44′N , 108°50′E , alt. 900 m , 2.V.2009 , Hu & Yin leg. ( SHNU ) ; 1♀ , Changjiang County , Bawangling , alt. 1000 m , 13. IV.2010 , Feng & Yuan leg. ( SHNU ) ; 2♂♂ , Lingshui County , Diaoluoshan , alt. 1000 m , 20. IV.2010 , Yuan leg. ( SHNU ) ; 6♂♂ 3♀♀ , Wuzhishan City , Wuzhishan , 18°54′N , 109°41′E , alt. 650–700 m , 18–21.IV.2012 , Peng & Dai leg. ( SHNU ) ; 1♀ , Lingshui County , Diaoluoshan , 18°43′N , 109°51′E , alt. 1000 m , 24.IV.2012 , Peng & Dai leg. ( SHNU ) ; Yunnan : 5♂♂ 5♀♀ , Xishuangbanna , 55 km , 8.VII.2003 , Hu & Tang leg. ( SHNU ) ; 1♂ 1♀ , Nabanhe N. R., Bengganghani 14.I.2004 , Li & Tang leg. ( SHNU ) ; 1♂ , Nabanhe N. R., Bengganghani , Nanmugahe , 22°08′N , 100°34′E , alt. 1700 m , 13.XI.2008 , Hu & Tang leg. ( SHNU ) ; 1♂ , Nabanhe N. R., Xiaonuoyouxiazhai , 22°13′N , 100°35′E , alt. 1500 m , 19.XI.2008 , Hu & Tang leg. ( SHNU ) ; 1♂ , Nabanhe N. R., Nabancun , 22°10′N , 100°39′E , alt. 720 m , 22.XI.2008 , Hu & Tang leg. ( SHNU ) . Measurements. BL: 6.2–6.6 mm , FL: 3.2–3.4 mm . HW: 1.23–1.34 mm , PL: 0.91–1.00 mm, PW: 0.74–0.82 mm , EL: 1.32–1.41 mm , EW: 1.17–1.29 mm , SL: 1.11–1.22 mm . Head 1.03–1.08 times as wide as elytra, pronotum 1.15–1.27 times as long as wide, elytra 1.09–1.15 times as long as wide. Distribution. China ( Yunnan , Hainan ). Remarks. The species was originally described from Hainan , and this is the first time for the species reported from Yunnan . Aedeagal inner sac with tridentical apex and valvifer with bidentical apical projection are important characters to the speices. Few differences of aedeagus and valvifers between the populations from Hainan and those from Yunnan are considered as the variation of the species.