Nazeris, Fauvel, 1873

Li, Li-Zhen, 2017, Four new species of Nazeris Fauvel in Guangxi, China (Coleoptera, Staphylinidae, Paederinae), Zootaxa 4312 (2), pp. 333-342 : 340-341

Key to species of Nazeris in Guangxi, China

1 Head with non-umbilicate punctation ( Fig. 15 )........................................... N. alatus Hu & Li , sp. n.

- Head with umbilicate punctation..........................................................................2

2 Abdomen with fine microsculpture on all tergites........................................... N. qini Hu & Li, 2012

- Abdomen lacking microsculpture.........................................................................3

3 Body reddish brown, less than 6.0 mm.....................................................................4

- Body dark brown, more than 6.4 mm .....................................................................10

4 Dorso-lateral apophyses of aedeagus extending to the same level as or only slightly beyond apex of the median lobe....... 5

- Dorso-lateral apophyses of aedeagus extending much beyond apex of median lobe..................................6

5 Ventral process of aedeagus narrow, constricted to sharp apex in ventral view ( Hu et al. 2012: 36, Fig. 4 ).............................................................................................. N. dayaoensis Hu & Li, 2012

- Ventral process of aedeagus conspicuously broad, with round apex in ventral view ( Assing 2016: 307, Fig. 11 )............

............................................................................... N. latilobatus Assing, 2016 6 Ventral process of aedeagus nearly triangular, with narrow apex in ventral view ( Assing 2016: 309, Fig. 16 )................................................................................................ N. obtortus Assing, 2016

- Ventral process of aedeagus broad, with wide apex in ventral view...............................................7

7 Ventral process of aedeagus provided with a pair of apicad narrow processes on dorsal side of apex ( Hu et al. 2012: 38, Fig. 12 ) N. luoi Hu & Li, 2012

- Ventral process of aedeagus lacking processes near apex.......................................................8

8 Ventral process of aedeagus with round apex in ventral view and with a pair of round basal laminae ventrally ( Hu et al. 2013: 87, Fig. 4 ).................................................................. N. damingshanus Hu & Li, 2013

- Ventral process of aedeagus with truncate apex in ventral view and with a pair of thin basal laminae ventrally............9

9 Dorso-lateral apophyses of aedeagus roundly widened at apex in ventral view ( Fig. 13 )..... N. huapingensis Hu & Li , sp. n.

- Dorso-lateral apophyses of aedeagus narrowed at apex in ventral view ( Hu et al. 2012: 39, Fig. 16 ).... N. tani Hu & Li, 2012

10 Male sternite VII with small semi-circular emargination in middle of posterior margin ( Hu et al. 2012: 41, Fig. 26 )....................................................................................... N. megalobus Hu & Li, 2012

- Male sternite VII lacking emargination in middle of posterior margin............................................ 11

11 Dorso-lateral apophyses of aedeagus extending beyond apex of ventral process ( Fig. 28 )...... N. chenyanae Hu & Li , sp. n.

- Dorso-lateral apophyses of aedeagus not reaching apex of ventral process........................................12

12 Dorso-lateral apophysis of aedeagus greatly expanded in apical half ( Hu et al. 2012: 42, Fig. 34)... N. grandis Hu & Li, 2012

- Dorso-lateral apophysis of aedeagus slender, not expanded in apical half.........................................13

13 Ventral process of aedeagus extremely elongate, about twice as long as dorso-lateral apophysis ( Hu et al. 2013: 88, Fig. 10 )................................................................................ N. longilobus Hu & Li, 2013

- Ventral process of aedeagus not extremely elongate..........................................................14

14 Apex of ventral process of aedeagus divided into two straight branches in ventral view ( Fig. 23 ).... N. exilis Hu & Li , sp. n.

- Ventral process of aedeagus with round apex ( Assing 2016: 307, Fig. 4 )..................... N. bihamatus Assing, 2016

Figures

FIGURES 15 – 19. Nazeris alatus 15 – forebody; 16 – male sternite VII; 17 – male sternite VIII; 18 – aedeagus, in ventral view; 19 – aedeagus, in lateral view. Scale bars: 15: 1 mm, 16 – 19: 0.5 mm

FIGURES 1 – 5. Nazeris obtortus 1 – forebody; 2 – male sternite VII; 3 – male sternite VIII; 4 – aedeagus, in ventral view; 5 – aedeagus, in lateral view. Scale bars: 1: 1 mm, 2 – 5: 0.5 mm

FIGURES 10 – 14. Nazeris huapingensis 10 – forebody; 11 – male sternite VII; 12 – male sternite VIII; 13 – aedeagus, in ventral view; 14 – aedeagus, in lateral view. Scale bars: 10: 1 mm, 11 – 14: 0.5 mm

FIGURES 25 – 29. Nazeris chenyanae 25 – forebody; 26 – male sternite VII; 27 – male sternite VIII; 28 – aedeagus, in ventral view; 29 – aedeagus, in lateral view. Scale bars: 25: 1 mm, 26 – 29: 0.5 mm

FIGURES 20 – 24. Nazeris exilis 20 – forebody; 21 – male sternite VII; 22 – male sternite VIII; 23 – aedeagus, in ventral view; 24 – aedeagus, in lateral view. Scale bars: 20: 1 mm, 21 – 24: 0.5 mm.