Anchocerus

Hu, Jiayao, Li, Lizhen & Zhao, Meijun, 2012, Three new species of Anchocerus Fauvel (Coleoptera: Staphylinidae: Staphylininae), with an updated key to Chinese species, Zootaxa 3318, pp. 57-62 : 62

Key to Anchocerus species of China

1. Head densely punctate by non-setiferous punctures.......................................................... 2

- Head almost impunctate, at most with scattered fine and sparse micropunctation.................................... 4

2. Head not dilated behind eyes. Paramere without sensory peg setae. (Yunnan)................... A. yunnanensis sp. nov.

- Head dilated behind eyes. Paramere with sensory peg setae.................................................... 3

3. Temples more than 2.2 times as long as eyes. Aedeagus with median lobe slightly emarginate at apex in ventral view, paramere without branches. (Yunnan)........................................................... A. pengzhongi sp. nov.

- Temples twice as long as eyes. Aedeagus with median lobe not emarginate at apex in ventral view, paramere with two very short branches. (Fujian, Zhejiang)............................................ A. giganteus Hu, Li & Zhao, 2010

4. Body length more than 9 mm. Paramere of aedeagus with sensory peg setae...................................... 5

- Body length less than 8 mm. Paramere of aedeagus without sensory peg setae..................................... 6

5. Body length more than 11 mm. Abdominal tergites lacking microsculpture. (Yunnan).......... A. smetanai Schülke, 2011

- Body length less than 10 mm. Abdominal tergites with dense transverse microsculpture. ( Taiwan). A. shibatai Smetana, 1995

6. Temples more than 2.5 times as long as eyes. Pronotum with two lateral macrosetae at each side. (Yunnan).. A. yini sp. nov.

- Temples twice as long as eyes. Pronotum with single lateral macrosetae at each side. (Sichuan, Yunnan).............................................................................................. A. schuelkei Smetana, 2005