Key to Rismethus species from China *

1. Body smaller, stout, 2.0– 2.8 mm; lateral angles of elytra angular; hind wings absence............................... 2

- Body larger, elongate, 2.5–4.0 mm; lateral angles of elytra rounded; hind wings present.................... R. scobinula

2. Body light-colored; middle tooth of hind angle of pronotum sharp and protruding..................... R. jiangi sp. nov.

- Body dark-colored; middle tooth of hind angle of pronotum short and blunt............................ R. ryukyuensis