Notes on the Dianous aereus complex with description of a new species (Coleoptera, Staphylinidae) Author Tang, Liang Author Hu, Cheng-Zhi text Zootaxa 2018 2018-11-09 4514 4 573 582 journal article 27985 10.11646/zootaxa.4514.4.10 73db70ae-7c5e-4172-8a21-0643f4b41b1a 1175-5326 2609283 07D68293-B735-4AEA-BB5A-1C104207A569 Dianous vietnamensis Puthz, 1980 ( Figs. 1 , 7, 13, 23, 29) Dianous vietnamensis Puthz, 1980 : 234 ; Puthz, 2000 : 452 ; Puthz, 2016 : 751 . Material examined. China : Guangxi : 42♂♂ 44♀♀ , Jingxi County , Tonglinxiagu , 25.VII.2006 , Li-Zhen Li leg. (SHNU); 7♂♂ 12♀♀ , Shangsi County , Shiwandashan , alt. 300–400m , Peng , Zhai & Zhu leg. ( SHNU ) ; Yunnan : 24♂♂ 26♀♀ , Xishuangbanna , Nabanhe N. R., Nabancun , alt. 700m , 26.VII.2005 , Li & Li leg. ( SHNU ) ; Hainan : 11♂♂ 24♀♀ , Linshui County , Diaoluoshan , alt. 900m , 18.XI.2006 , Li leg. ( SHNU ) ; 1♂ , Changjiang County , Bawangling , alt. 1000m , 13.IV.2010 , Feng & Yuan leg. ( SHNU ) ; 1♂ 1♀ , Ledong County , Jianfengling , alt. 900 m , 16.IV.2010 , Feng & Yuan leg. ( SHNU ) ; 18♂♂ 24♀♀ , Linshui County , Diaoluoshan , alt. 930–1000m , 21–23.IV.2010 , Yuan & Feng leg. ( SHNU ) ; 4♂♂ 2♀♀ , Ledong County , Jianfengling , 800 m , 17.V.2011 , Wen-Xuan Bi leg. ( SHNU ) ; 3♂♂ 3♀♀ , Baishan County , Yuanmenxiang , Yinggezui , 600 m , 26.IV.2011 , Wen-Xuan Bi leg. ( SHNU ) ; 1♂ 1♀ , Wuzhishan , 700 m , 04.II.2012 , He & Tang leg. ( SHNU ) ; 11♂♂ 10♀♀ , Wuzhishan , Guanshandian , 18°53′N , 109°41′E , 650 m , 19.IV.2012 , Dai & Peng leg. ( SHNU ) ; 120♂♂ 146♀♀ , Wuzhishan , 18°54′N , 109°41′E , alt. 650–700 m , 18–21.IV.2012 , Peng , Dai , Yin , Li & Pan leg. ( SHNU ) ; 6♂♂ 6♀♀ , Linshui County , Diaoluoshan , 18°43′N , 109°51′E , alt. 1000 m , 24.IV.2012 , Dai & Peng leg. ( SHNU ) ; 1♂ 1♀ , Linshui County , Diaoluoshan , Shuiku , 18°43′N , 109°53′E , alt. 950–1000 m , 25.IV.2012 , Dai & Peng leg. ( SHNU ) ; 4♂♂ 6♀♀ , Ledong County , Jianfengling , 18°44′N , 108°50′E , alt. 900 m , 2.V.2012 , Dai & Peng leg. ( SHNU ) Measurements. BL: 3.9–4.7 mm , FL: 2.4–2.7 mm . HW: 0.88–0.97 mm , PL: 0.74–0.80 mm , PW: 0.74–0.82 mm , EL: 1.11–1.23 mm , EW: 1.11–1.25 mm , SL: 0.96–1.06 mm . Head 0.74–0.80 times as wide as elytra, pronotum 0.95–1.00 times as long as wide, elytra 0.97–1.01 times as long as wide. Distribution. China ( Yunnan , Guangxi , Hainan ), Vietnam , Laos . Remarks. The species is similar to D. rougemontianus Puthz, 2000 from Sichuan and Hubei , D. ruginosus Zheng, 1993 from Sichuan , and D. aerator Puthz, 2016 widely distributed in China , but can be easily distinguished from them by body with blue metallic tinge and smaller ratio of HW/EW. The species is new to Guangxi .