New Species, New Synonymy, and Additional Records ofSyndicusMotschulsky (Coleoptera: Staphylinidae: Scydmaeninae) Author Yin, Zi-Wei Author Zhou, De-Yao text The Coleopterists Bulletin 2016 2016-12-31 70 4 871 879 http://dx.doi.org/10.1649/0010-065x-70.4.871 journal article 10.1649/0010-065X-70.4.871 5340480 Syndicus ( Semisyndicus ) sichuanicus Yin and Zhou , new species ( Fig. 5B, D, F ) Type Material. Holotype ♂ : ‘ CHINA : W. Sichuan , Ya’ an Pref., Shimian Co. , Xiaoxiang Ling , side-valley ab. Nanya Cun near Caluo , 11 km S Shimian , 1250 m , 7.VII.1999 , leg. A. Pütz / HOLOTYPE (red), ♂ , Syndicus sichuanicus sp. n. , det. Yin & Zhou, 2016’ (cPüt). Paratype : 1 ♀ : same data, except for ‘leg. M. Schülke / PARATYPE (yellow), ♀ ’ (cSch). Diagnosis. Male. Length 3.02–3.05 mm ; antennomere II distinctly shorter than III; pronotal disc coarsely punctate; aedeagus relatively slender, parameres much longer than median lobe. Female: spermatheca nearly oval, slightly elongate. Description. See Jałoszyński (2008 , as S . sinensis ), with illustrations of habitus and aedeagus. Comparative Notes. Both specimens examined here, previously published as S . sinensis ( Jałoszyński 2008 ) , have a coarsely punctate pronotal disc ( Fig. 5D ) and relatively shorter antennomere II ( Fig. 5F ) in comparison to antennomere III. The male ( Fig. 5B ) has a slender aedeagus ( Jałoszyński 2008 : figs 2–3), and the female has an oval, slightly elongate spermatheca. This new species is similar to S . sinensis by sharing similar body shape, proportions of the body parts, structure of the aedeagal endophallus, and shape of the spermatheca, but can be readily separated by the characters listed in the diagnosis section. Fig. 5. Syndicus sinensis , holotype female: A) Dorsal habitus, C) Head and pronotum, E) Antennomeres I–III. Syndicus sichuanicus , male: B) Dorsal habitus, D) Head and pronotum, F) Antennomeres I–III. Distribution. China : Sichuan . Etymology. The new species is named after the Sichuan Province where the type locality is situated.