The Nazeris fauna in Xizang, China (Coleoptera, Staphylinidae, Paederinae) Author Gao, Zhuo-Qun 0009-0003-0596-3607 Laboratory of Systematic Entomology, College of Life Sciences, Shanghai Normal University, 100 Guilin Road, Xuhui District, Shanghai, 200234, China & 303347106 @ qq. com; https: // orcid. org / 0009 - 0003 - 0596 - 3607 303347106@qq.com Author Da, Wa 0000-0002-4856-5233 Tibetan Plateau Institute of Biology, Lhasa 850001, China & tsea 1 @ 163. com; https: // orcid. org / 0000 - 0002 - 4856 - 5233 Author Hu, Jia-Yao 0000-0002-9861-9551 Laboratory of Systematic Entomology, College of Life Sciences, Shanghai Normal University, 100 Guilin Road, Xuhui District, Shanghai, 200234, China & hujiayao @ shnu. edu. cn; https: // orcid. org / 0000 - 0002 - 9861 - 9551 hujiayao@shnu.edu.cn text Zootaxa 2023 2023-11-08 5369 1 131 145 https://www.mapress.com/zt/article/download/zootaxa.5369.1.7/52233 journal article 10.11646/zootaxa.5369.1.7 1175-5326 10144947 9DCFA15A-538D-446C-B468-44276FBB60D3 Nazeris mirabilis sp. n. Figs 1A , 2A , 3A–G , 10G Type material. Holotype : CHINA : male, ‘ Xizang , Dinggyê County , Zhêntang Town , Ganma Zangbo Valley , 27°51′50″N , 87°24′24″E , 2400 m . 28.vi.2021 , Z. Peng leg.(ŮãṪĠƂỆḑạffLjãţffië)’ ( SNUC ) . Paratypes : 2 males , 4 females , same data as holotype . Diagnosis. Body dark brown; head with non-umbilicate punctation, shaped like sunflower seed; abdominal tergites with fine microsculpture on all tergites; aedeagal ventral process with very broad apex; dorso-lateral apophyses slender, not reaching apex of ventral process. Description. Body length 5.6–6.4 mm ; forebody length 3.1–3.3 mm . Body ( Fig. 1A ) dark brown; antennae and legs yellowish brown. Head ( Fig. 2A ) 1.02–1.04 times as long as wide; punctation very dense, moderately coarse and non-umbilicate, shaped like sunflower seed; interstices lacking microsculpture; postocular portion 1.9–2.1 times as long as eye length. Pronotum ( Fig. 2A ) 1.21–1.28 times as long as wide, 0.96–1.04 times as long and 0.80–0.83 times as broad as head; punctation non-umbilicate, moderately dense, slightly coarser than that of head; midline posteriorly with very narrow impunctate elevation; interstices lacking punctation. Elytra ( Fig. 2A ) 0.61–0.69 times as long as wide, 0.51–0.56 times as long and 0.98–1.05 times as broad as pronotum; punctation similar to that of pronotum; interstices lacking microsculpture. Abdomen ( Fig. 1A ) with punctation dense and rather coarse on tergites III–IV, dense and less coarse on tergites V–VI, moderately dense and fine on tergites VII–VIII; with fine microsculpture on all tergites ( Fig. 3A ). Male. Sternite VII ( Fig. 3B ) with posterior margin shallowly emarginated in the middle. Sternite VIII ( Fig. 3C ) with V-shaped posterior excision. Aedeagus ( Figs 3D–G ) with ventral process very broad, with small excision at apex in ventral view; dorso-lateral apophyses slender, distinctly curved near apex in ventral view, not reaching apex of ventral process. Distribution and habitat data. The species is known only from Dinggyê County in southern Xizang ( Fig. 10G ). The specimen was collected by sifting leaf litter at an altitude of 2400 m . Comparative notes. The new species is very similar in general appearance and aedeagal characters to N. confluens Assing, 2014 , but can be separated by the microsculpture on all abdominal tergites ( Fig. 3A ) and the ventral process of aedeagus distinctly widened apicad in ventral view ( Figs 3D, E ), while hardly widened apicad in N. confluens . Etymology. The specific epithet ‘ mirabilis (strange)’ is a Latin adjective referring to the special punctation on its head.