Rugilus (Rugilus) schuelkei, 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 : 14

Rugilus (Rugilus) schuelkei ASSING, 2012

M a t e r i a l e x a m i n e d: China:Y u n n a n: 3♂♂, 20♀♀, Haba Shan, 27°22'N, 100°06'E, 3270 m, sifted, 29.VI.2012, leg. Grebennikov; 1♀, Haba Shan , 27°21'N, 100°06'E, 4070 m, sifted, 28.VI.2012, leg. Grebennikov; 1♀, Haba Shan, 27°22'N, 100°07'E, 3360 m, sifted, 29.VI.2012, leg. Grebennikov (material in CAS, cSme, cAss) .

C o m m e n t: The known distribution is confined to several localities in the environs of Zhongdian ( ASSING 2012a, 2012b, 2015). This species, too, is subject to a sexual wing-dimorphism (males macropterous; females brachypterous) and a biased sex ratio. The ratio in the material studied up to today is 0.25 (13 males: 53 females).

Rugilus (Rugilus) meilixuensis ASSING, 2012 M a t e r i a l e x a m i n e d: China: Y u n n a n: 5♂♂ [1 macropterous], 20♀♀, 15 km W

Deqin, Mingyong , 28°27'N, 98°45', 3290 m, sifted, 29.VI.2012, leg. Grebennikov; 5♂♂ [2 macropterous], 17♀♀, 15 km W Deqin, Mingyong , 28°27'N, 98°45', 3260 m, sifted, 29.VI.2012, leg. Grebennikov (material in CAS, cSme, cAss) .

C o m m e n t: All known records of R. meilixuensis are from the Meili Xue Shan ( ASSING 2012a, 2012a, 2013). The above material confirms an earlier hypothesis ( ASSING 2012a) that the males are indeed wing-dimorphic. Thus, this species is subject to a sexual wing-trimorphism (males macropterous or brachypterous with the elytra not dilated posteriorly; females brachypterous with the elytra shorter than in brachypterous males and dilated posteriorly). The sex ratio in the material studied up to today is 0.25 (11 males: 44 females); four males are macropterous, the remainder brachypterous.