Rugilus (Rugilus) emeiensis, Assing, 2012

Assing, Volker, 2019, A revision of Palaearctic and Oriental Rugilus. VI. Two new species Irom China, a new synonymy, and additional records (Coleoptera, Staphylinidae, Paederinae), Linzer biologische Beiträge 51 (1), pp. 5-20 : 13-14

Rugilus (Rugilus) emeiensis ASSING, 2012

M a t e r i a l e x a m i n e d: China: S i c h u a n: 5♀♀, Emei Shan, 29°33'N, 103°21'E, 2290 m, sifted, 16.VI.2010, leg. Grebennikov; 4♂♂, 9♀♀, Emei Shan , 29°33'N, 103°20'E, 2340 m, sifted, 17.VI.2010, leg. Grebennikov ; 1♂, 21♀♀, Emei Shan , 29°33'N, 103°21'E, 2440 m, sifted, 18.VI.2010, leg. Grebennikov (material in CAS, cSme, cAss) ; 11♀♀, Emei Shan , Taiziping Temple, 29°32'N, 103°20'E, 2820 m, mixed forest with Abies and bamboo undergrowth, sifted, 8.& 10.VI.2014, leg. Hảjek & Růžička ( NMP, cAss) ; 2♂♂, 1♀, Emei Shan , Jieyingdian Temple, 29°32'N, 103°20'E, 2480 m, bamboo and mixed forest, sifted, 7.VI.2014, leg. Hảjek & Růžička ( NMP, cAss) ; 1♀, Emei Shan , Jieyingdian Temple, 29°32'N, 103°20'E, 2420 m, secondary mixed forest above temple, sifted, 10.VI.2014, leg. Hảjek & Růžička ( NMP) ; 1♀, same data, but 8.VI.2014 ( NMP) ; 1♀, Emei Shan , Leidongping env., 29°33'N, 103°20'E, 2410 m, bamboo, debris sifted, 9.VI.2014, leg. Hảjek & Růžička ( NMP) ; 1♀, SSW Chengdu , Emei Shan, 2200-3000 m, pitfall trap, 22.-26.VI.2016, leg. Reuter (cFel) .

C o m m e n t: Like most other Chinese representatives of the nominal subgenus, this endemic of the Emei Shan is subject to a sexual wing dimorphism (males macropterous; female brachypterous) and a biased sex ratio. Previously, only two in a total of 45 specimens studied were males ( ASSING 2012a, 2012b, 2014, 2015). Including the new material, the sex ratio now stands at 0.1 (9 males: 94 females).