Nazeris

Hu, Jia-Yao, Liu, Yi-Xiao & Li, Li-Zhen, 2018, Two new species of Nazeris Fauvel in the Luoxiao Mountain Range, China (Coleoptera, Staphylinidae, Paederinae), Zootaxa 4370 (2), pp. 180-188 : 187

Key to Nazeris species of Luoxiao Mountain Range

1 Head with umbilicate punctation.......................................................................... 2

- Head with non-umbilicate punctation...................................................................... 8

2 Body reddish brown, less than 4.6 mm ..................................................................... 3

- Body dark brown, more than 5.0 mm...................................................................... 4

3 Apex of ventral process of the aedeagus with dorsal process in lateral view; dorso-lateral apophyses roundly widened at apex in ventral view ( Hu & Li, 2015: 4, Fig. 1D, 1E )..................................... N. luoxiaoshanus Hu & Li, 2015

- Apex of ventral process of the aedeagus simply acute in lateral view; dorso-lateral apophyses triangularly widened at apex in ventral view ( Hu & Li, 2015: 5, Fig. 2D, 2E ).......................................... N. pengzhongi Hu & Li, 2015

4 Apex of ventral process of the aedeagus divided into two branches in ventral view.................................. 5

- Apex of ventral process of the aedeagus without branches in ventral view......................................... 6

5 Apical branches of ventral process of the aedeagus narrow and straight in ventral view ( Hu & Li, 2015: 7, Fig. 3D ).......................................................................................... N. divisus Hu & Li, 2015

- Apical branches of ventral process of the aedeagus wide and curved in ventral view ( Hu & Li, 2015: 9, Fig. 4D ) ......................................................................................... N. paradivisus Hu & Li, 2015

6 Ventral process of the aedeagus shallowly concave at apex in ventral view ( Hu & Li, 2015: 10, Fig. 5D ) ................................................................................................ ... N. xiaobini Hu & Li, 2015

- Ventral process of the aedeagus prominent at apex in ventral view............................................... 7

7 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

8 Abdominal tergites with fine microsculpture................................................................ 9

- Abdominal tergites lacking microsculpture................................................................ 12

9 Body reddish brown, less than 4.7 mm .................................................................... 10

- Body dark brown, more than 5.5 mm ..................................................................... 11

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

- Ventral process of the aedeagus with broad apex in lateral view ( Fig. 21 ); dorso-lateral apophyses not thickened apically in ventral view ( Fig. 20 )........................................................... N. jiaweii Hu, Liu & Li , sp. n.

11 Ventral process of the aedeagus distinctly asymmetric, the left apical process much shorter than the right one in ventral view ( Assing, 2014: 26, Fig. 58)......................................................... N. inaequalis Assing, 2014

- Ventral process of the aedeagus symmetric ( Fig. 15 )................................. N. yipingae Hu, Liu & Li , sp. n.

12 Male sternite VII with posterior margin shallowly concave in the middle......................................... 13

- Male sternite VII with posterior margin distinctly prominent in the middle....................................... 14

13 Male sternite VIII with U-shaped posterior excision; apex of ventral process of the aedeagus prominent in ventral view ( Hu & Li, 2015: 15, Fig. 9C, 9D )............................................................. N. ziweii Hu & Li, 2015

- Male sternite VIII with broadly triangular posterior excision; apex of ventral process of the aedeagus with V-shaped excision in ventral view ( Hu & Li, 2015: 16, Fig. 10C, 10D )..................................... N. daweishanus Hu & Li, 2015

14 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 beyond apex of ventral process................................. 15

15 Ventral process of the aedeagus long, constricted in the middle in ventral view ( Assing, 2014: 26, Fig. 66)................................................................................................ N. proiectus Assing, 2014

- Ventral process of the aedeagus short, widened in the middle in ventral view ( Hu & Li, 2015: 18, Fig. 11D )............................................................................................. N. prominens Hu & Li, 2015

Figures

FIGURES 1–3. Habitus of species 1—Nazeris inaequalis; 2—N. yipingae; 3—N.jiaweii. Scale bars: 1 mm.

FIGURES 4–11. Nazeris inaequalis (4–7: specimen from Nanfengmian, 8–11: specimen from Bamian Shan) 4, 8—male sternite VII; 5, 9—male sternite VIII; 6, 10—aedeagus, in ventral view; 7, 11—aedeagus, in lateral view.Scale bars: 0.5 mm.

FIGURES 17–21. Nazeris jiaweii 17—forebody; 18—male sternite VII; 19—male sternite VIII; 20—aedeagus, in ventral view; 21—aedeagus, in lateral view.Scale bars: 17: 1 mm, 18–21: 0.5 mm.

FIGURES 12–16. Nazeris yipingae 12—forebody; 13—male sternite VII; 14—male sternite VIII; 15—aedeagus, in ventral view; 16—aedeagus, in lateral view.Scale bars: 12: 1 mm, 13–16: 0.5 mm.