Nazeris wenxuani, Gao & Da & Hu, 2023

Gao, Zhuo-Qun, Da, Wa & Hu, Jia-Yao, 2023, The Nazeris fauna in Xizang, China (Coleoptera, Staphylinidae, Paederinae), Zootaxa 5369 (1), pp. 131-145 : 138-139

publication ID	https://doi.org/ 10.11646/zootaxa.5369.1.7
publication LSID	lsid:zoobank.org:pub:9DCFA15A-538D-446C-B468-44276FBB60D3
DOI	https://doi.org/10.5281/zenodo.10166576
persistent identifier	https://treatment.plazi.org/id/03CC87CF-FFFF-855E-0DAD-FF0CFAC9FD17
treatment provided by	Plazi
scientific name	Nazeris wenxuani
status	sp. nov.

Treatment

Nazeris wenxuani sp. n.

Figs 1D View FIGURE 1 , 2D View FIGURE 2 , 6A–F View FIGURE 6 , 10J View FIGURE 10

Type material. Holotype: CHINA: male, ‘ China: Xizang, Gyirong County, Gyirong Valley , pass nr. Ru Kupuqiong , 28°25′47″N, 85°15′50″E, 3000 m, 20.vi.2021, Z. Peng, Z. Yin & W. Zhang leg. (ƱAEƋṞflẘNJĂḎṈĀ)’ ( SNUC) GoogleMaps . Paratypes: 1 male, 1 female, same data as holotype GoogleMaps .

Diagnosis. Body dark brown; head with umbilicate punctation; abdominal tergites lacking microsculpture; aedeagal ventral process with acute apex in ventral view; dorso-lateral apophyses with wide apex in ventral view, not reaching apex of ventral process.

Description. Body length 6.3–6.4 mm; forebody length 3.3–3.6 mm.

Body ( Fig. 1D View FIGURE 1 ) dark brown; antennae and legs yellowish brown.

Head ( Fig. 2D View FIGURE 2 ) 1.01–1.06 times as long as wide; punctation very dense, moderately coarse, distinctly umbilicate, interstices lacking microsculpture; postocular portion 2.1–2.2 times as long as eye length.

Pronotum ( Fig. 2D View FIGURE 2 ) 1.14–1.15 times as long as wide, 0.94–1.00 times as long and 0.87–0.88 times as broad as head; punctation non-umbilicate, dense and as coarse as that of head; midline with very short and narrow impunctate elevation; interstices lacking microsculpture.

Elytra ( Fig. 2D View FIGURE 2 ) 0.69–0.76 times as long as wide, 0.61–0.68 times as long and 1.00–1.03 times as broad as pronotum; punctation similar to that of pronotum; interstices lacking microsculpture.

Abdomen ( Fig. 1D View FIGURE 1 ) 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; interstices lacking microsculpture.

Male. Sternite VII ( Fig. 6A View FIGURE 6 ) with posterior margin triangularly emarginated in the middle. Sternite VIII ( Fig. 6B View FIGURE 6 ) with V-shaped posterior excision. Aedeagus ( Figs 6C–F View FIGURE 6 ) with ventral process long, with acute apex in ventral view; dorso-lateral apophyses moderately slender, distinctly widened and curved near apex in ventral view, nearly straight in lateral view, not reaching apex of ventral process.

Distribution and habitat. The species is only known from Gyirong County in southern Xizang ( Fig. 10J View FIGURE 10 ). The specimen was collected by sifting leaf litter at an altitude of 3000 m.

Comparative notes. This species is very similar in general appearance and aedeagal characters to N. incisus Assing, 2014 , but can be separated by the abdominal tergites lacking microsculpture, and by the slender ventral process of aedeagus in ventral view ( Figs 6C, D View FIGURE 6 ).

Etymology. The species is named in honor of Wen-Xuan Zhang, who collected the type specimens.