Oxyporus, Fabricius, 1775

Li, Guo-Feng, Wang, Chun-Mei, Li, Hua-Feng, Li, Zhu-Jie & Wu, Xing-Xing, 2019, A new species of the genus Oxyporus Fabricius (Coleoptera: Staphylinidae: Oxyporinae) in Yunnan Province, China, Zootaxa 4551 (2), pp. 231-236 : 235

Key to the Oxyporus species of Yunnan Province

1 Body entirely black; male unkown; known from Baoshan....................................... O. femoratus Zheng

- Body bicolored....................................................................................... 2

2 Head black to brownish black............................................................................ 3

- Head yellow to reddish yellow.......................................................................... 10

3 Maximum length more than 9 mm ........................................................................ 4

- Maximum length less than 9 mm ......................................................................... 6

4 Pronotal disc without transverse depression; right and left paramere with 1 minute seta at each apex; known from Lijiang......................................................................................... O. germanus Sharp

- Pronotal disc with 1 deep, transverse depression located just before middle........................................ 5

5 Pronotal disc without reddish yellow spots; right and left paramere without minute seta at each apex; known from Mojiang............................................................................................ O. wangae Li

- Pronotal disc bearing 2 small irregular reddish yellow spots; right and left paramere without minute seta at each apex; known from Mojiang.............................................................................. O. fentianae Li

6 Abdomen brownish yellow, with two longitudinal black fasciae on tergites 3–7; male unkown; known from Binchuan........................................................................................... O.bifasciarius Zheng

- Abdomen without longitudinal black fasciae................................................................ 7

7 Abdominal tergites 3–4 or 3–5 yellow to reddish yellow; right and left paramere with 1 minute seta at each apex; known from Dali.................................................................................. O. riparius Zheng

- Abdominal tergites 3–4 or 3–5 black..................................................................... 8

8 Elytra with black area in basal part of suture; pronotal disc bearing 2 vague longitudinal depressions in middle just behind the transverse depression; right and left paramere without minute seta at each apex; known from Lijiang............................................................................................... O. transversesulcatus Bernhauer

- Elytra without black area in basal part of suture.............................................................. 9

9 Pronotal disc without transverse depression; right and left paramere without minute seta at each apex; known from Xinping.................................................................................. O. tuantianius sp. nov. Li

- Pronotal disc with one transverse depression located just before middle; the right paramere with 1 minute seta and the left paramere without seta at each apex; known from Kunming........................................ O. kunmingius Li

10 Abdomen orange yellow, with two longitudinal black fasciae on tergites 3–7; male unkown; known from Ninger................................................................................................... O. ningerius Li

- Abdomen without longitudinal black fasciae............................................................... 11

11 Abdominal segments 3–5 black; right and left paramere with 2 minute setae different in size at each apex; known from Lijiang....................................................................................... O. yulong Zheng

- Abdominal segments 3–5 brownish yellow to reddish yellow.................................................. 12

12 Posterior portion of gula and metasternum brownish yellow; left paramere with 1 minute seta and right paramere with 1 slightly longer seta at each apex; known from Puer................................................... O. lii Zheng

- Posterior portion of gula and metasternum reddish yellow..................................................... 13

13 Pronotal anterior without macula, disc with 2 deep, transverse depressions before middle; right paramere with 1 minute seta and left paramere with 1 slightly longer seta at each apex; known from Puer............................. O. puerius Li

- Pronotal anterior 1/2 bearing a black small subquadrate macula, disc with 1 deep, transverse depression before middle; the left paramere with 1 minute seta and the right paramere without seta at each apex; known from Mojiang...... O. bingshengae Li