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