Oxyporus, Fabricius, 1775

Li, Guo-Feng, 2020, A new species of the genus Oxyporus Fabricius (Coleoptera: Staphylinidae Oxyporinae) in Yunnan Province, China, Zootaxa 4786 (1), pp. 145-150 : 148-149

Key to the Oxyporus species of Yunnan Province

1 Body entirely black; male unkown; known from China (Yunnan)................................. O. femoratus Zheng

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

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

- Head yellow to reddish yellow.......................................................................... 11

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

- Maximum length less than 9 mm ......................................................................... 7

4 Pronotal disc without transverse depression; right and left paramere with 1 minute seta at apex; known from China (Yunnan), South Korea, Japan...................................................................... O. germanus Sharp

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

5 Pronotal disc bearing 2 small irregular reddish yellow spots; right and left paramere without minute seta at apex; known from China (Yunnan).................................................................... ………… O. fentianae Li

- Pronotal disc without reddish yellow spots..................................................................6

6 Posterior margins of sternites 7 slightly and broadly emarginated at middle but posterior margins of sternites 8 strongly and broadly emarginated at middle; right and left paramere without minute seta at apex; known from China (Yunnan)................................................................................................... O. wangae Li

- Posterior margins of sternites 7–8 very slightly and broadly emarginated at middle; right and left paramere with two minute setae at apex; known from China (Yunnan)......................................... O. mojiangius Li , sp. n. nov. Li

7 Abdomen brownish yellow, with two longitudinal black fasciae on tergites 3–7; male unkown; known from China (Yunnan)……............................................................................ O. bifasciarius Zheng

- Abdomen without longitudinal black fasciae................................................................ 8

8 Abdominal tergites 3–4 or 3–5 yellow to reddish yellow; right and left paramere with 1 minute seta at apex; known from China (Yunnan)............................................................................... O. riparius Zheng

- Abdominal tergites 3–4 or 3–5 black...................................................................... 9

9 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 apex; known from China (Yunnan)........................................................................................... O. transversesulcatus Bernhauer

- Elytra without black area in basal part of suture............................................................ 10

10 Pronotal disc without transverse depression; right and left paramere without minute seta at apex; known from China (Yunnan)...................................................................................... O. tuantianius 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 apex; known from China (Yunnan)...................................... O. kunmingius Li

11 Abdomen orange yellow, with two longitudinal black fasciae on tergites 3–7; male unkown; known from China (Yunnan)........................................................................................... O. ningerius Li

- Abdomen without longitudinal black fasciae............................................................... 12

12 Abdominal segments 3–5 black; right and left paramere with 2 minute setae different in size at apex; known from China (Yunnan).................................................................................... O. yulong Zheng

- Abdominal segments 3–5 brownish yellow to reddish yellow.................................................. 13

13 Posterior portion of gula and metasternum brownish yellow; left paramere with 1 minute seta and right paramere with 1 slightly longer seta at apex; known from China (Yunnan)................................................... O. lii Zheng

- Posterior portion of gula and metasternum reddish yellow.................................................... 14

14 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 apex; known from China (Yunnan)........................... 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 apex; known from China (Yunnan).... O. bingshengae Li