Nazeris, Fauvel, 1873

Hu, Jia-Yao, Xiu, Mei-Ling & Song, Xiao-Bin, 2025, A new species of Nazeris Fauvel from Zhangjiajie, Hunan, China (Coleoptera, Staphylinidae, Paederinae), Zootaxa 5717 (4), pp. 585-588 : 587

Key to species of Nazeris in Hunan, China

1. Head with non-umbilicate punctation ( Fig. 2 )............................................................... 2

- Head with umbilicate punctation ( Hu & Li, 2015: 7, fig. 3A)................................................... 7

2. Abdominal tergites with fine microsculpture................................................................ 3

- Abdominal tergites lacking microsculpture................................................................. 5

3. Body dark brown, at least 6.3 mm ( Hu et al., 2018: 182, fig. 1)............................ N. inaequalis Assing, 2014

- Body reddish brown, at most 4.6 mm ( Hu & Li, 2015: 14, fig. 8A).............................................. 4

4. Ventral process of the aedeagus with acute apex in lateral view; dorso-lateral apophyses distinctly thickened apically in ventral view ( Hu & Li, 2015: 14, figs 8D, 8E)................................................... N. rufus Hu & Li, 2015

- Ventral process of the aedeagus with broad apex in lateral view; dorso-lateral apophyses not thickened apically in ventral view ( Hu et al., 2018: 185, figs 20, 21)................................................. N. jiaweii Hu, Liu & Li, 2018

5. Male sternite VII with posterior margin shallowly concave at middle ( Hu & Li, 2015: 16, fig. 10B)................................................................................................ N. daweishanus Hu & Li, 2015

- Male sternite VII with posterior margin distinctly prominent at middle ( Fig. 3 )..................................... 6

6. Dorso-lateral apophyses of the aedeagus not reaching apex of ventral process ( Hu & Li, 2015: 19, fig. 12D).............................................................................................. N. zekani Hu & Li, 2015

- Dorso-lateral apophyses of the aedeagus extending much beyond apex of ventral process ( Fig. 5 )......................................................................................................... N. hunanensis sp. nov.

7. Body dark brown, at least 5.2 mm ( Hu & Li, 2015: 7, fig. 3A).................................................. 8

- Body reddish brown, at most 4.7 mm ( Hu & Li, 2015: 6, fig. 2A).............................................. 10

8. Apex of ventral process of the aedeagus divided into two branches in ventral view ( Hu & Li, 2015: 7, fig. 3D)............................................................................................ N. divisus Hu & Li, 2015

- Apex of ventral process of the aedeagus without branches in ventral view ( Hu & Li, 2015: 11, fig. 6D)................. 9

9. Ventral process of the aedeagus with parallel sides in apical third in ventral view ( Hu & Li, 2015: 11, fig. 6D).......................................................................................... N. congchaoi Hu & Li, 2015

- Ventral process of the aedeagus triangularly widened in apical third in ventral view ( Hu & Li, 2015: 13, fig. 7D).......................................................................................... N. nannani Hu & Li, 2015

10. Dorso-lateral apophyses of the aedeagus triangularly widened at apex in ventral view ( Hu & Li, 2015: 6, fig. 2D)...................................................................................... N. pengzhongi Hu & Li, 2015

- Dorso-lateral apophyses of the aedeagus not widened at apex in ventral view ( Lin & Hu, 2021: 129, fig. 25)............................................................................................ N. lichongi Lin & Hu, 2021

Figures

FIGURES 1–8. Nazeris hunanensis sp. nov. 1 habitus; 2 forebody; 3 male sternite VII; 4 male sternite VIII; 5, 6 aedeagus in ventral view; 7, 8 aedeagus in lateral view. Scale bars: 1–2 1.0 mm; 3–8 0.5 mm.