| 1 | Four pronotal major setae well-developed, am setae minute | eriobotryae sp.nov. |
| – | Five pronotal major setae well-developed including am setae | 2 |
| 2 | Metathoracic sternopleural sutures absent or vestigial | 3 |
| – | Metathoracic sternopleural sutures distinct | 4 |
| 3 | Antennal segment VIII about as long as VII | leptocerus |
| – | Antennal segment VIII shorter than VII | machili * |
| 4 | Mesopresternum boat-shaped with a sharp median protruding | baiheensis * |
| – | Mesopresternum narrowly connected or separated into 2 parts | cymbidas * |