The Nazeris fauna of the Nanling Mountain Range, China (Coleoptera, Staphylinidae, Paederinae) Author Lin, Xiao-Bin Department of Biology, College of Life Sciences, Shanghai Normal University, 100 Guilin Road, 1 st Educational Building 423 - A Room, Shanghai, 200234 China Author Hu, Jia-Yao Department of Biology, College of Life Sciences, Shanghai Normal University, 100 Guilin Road, 1 st Educational Building 423 - A Room, Shanghai, 200234 China hujiayaonazeris@gmail.com text ZooKeys 2021 2021-09-08 1059 117 133 http://dx.doi.org/10.3897/zookeys.1059.72240 journal article http://dx.doi.org/10.3897/zookeys.1059.72240 1313-2970-1059-117 74BFDC468DE9424CB1685F03CF818C3C F28E541B35505760B314F23160885A35 Nazeris huaiweni Lin & Hu sp. nov. Figs 2 , 10-14 , 27 Type material. Holotype : China : ♂: "China: Guangdong, Shaoguan, Nanling N. R., 24°56'38"N , 112°59'31"E , 1316-1575 m, 29.vi.2020, Xia, Zhang, Yin and Lin leg." (SNUC). Paratypes : 2 ♀♀, same data, except "Ruyuan, Nanling, nr. Ruyang, Xiaohuangshan, 24°53'44.7"N , 113°1'26.9"E , 1270-1570 m, 2021.v.02, Hu, Lin, Zhou and Li leg." (SNUC). Description. Body length 6.2-6.8 mm; forebody length 3.2-3.3 mm. Body (Fig. 2 ) dark brown; antennae and legs yellowish brown. Figures 5-9. Nazeris xingmini 5 forebody 6 male sternite VII 7 male sternite VIII 8 aedeagus in ventral view 9 aedeagus in lateral view. Scale bars: 1.0 mm ( 5 ); 0.5 mm ( 6-9 ). Head (Fig. 10 ) approximately as long as wide; punctation very dense, moderately coarse, distinctly umbilicate, interstices lacking microsculpture; postocular portion approximately twice as long as eye length. Pronotum (Fig. 10 ) 1.12-1.21 times as long as wide, 0.93-1.02 times as long and 0.83-0.84 times as broad as head; punctation non-umbilicate, moderately dense and as coarse as that of head; midline posteriorly with short and very narrow impunctate elevation; interstices lacking microsculpture. Elytra (Fig. 10 ) 0.67-0.76 times as long as wide, 0.69-0.71 times as long and 1.03-1.12 times as broad as pronotum; punctation slightly denser and coarser than that of pronotum; interstices lacking microsculpture. Abdomen with punctation dense and rather coarse on tergites III-V, dense and less coarse on tergite VI, moderately dense and fine on tergites VII-VIII; interstices lacking microsculpture. Male. Sternite VII (Fig. 11 ) with posterior margin truncate at middle. Sternite VIII (Fig. 12 ) with triangular posterior excision. Aedeagus (Figs 13 , 14 ) with ventral process gradually narrowed in apicad half, with acute apex in ventral view or lateral view, with pair of wing-like basal laminae ventrally; dorso-lateral apophyses moderately slender, slightly widened near middle and apices in ventral view, not reaching apex of ventral process. Distribution and habitat data. The species is known only from Nanling in northern Guangdong (Fig. 27 ). The specimens were collected by sifted leaf litter at altitudes of 1270-1575 m. Comparative notes. The new species is very similar to N. divisus Hu & Li, 2015 in general appearance, but can be separated by the wider and shallower posterior excision of male sternite VIII (Fig. 12 ), by the ventral process with acute apex (Fig. 13 ), and by the wider dorso-lateral apophyses of aedeagus (Fig. 13 ). Etymology. The species is named in honor of Huai-Wen Wang (Administration of Nanling National Nature Reserve) who helped a lot during our collection in Nanling.