A key to Grouvellinus Champion, 1923 from mainland China with descriptions of two new species (Coleoptera, Elmidae)


	Male genitalia. 23–25 Grouvellinus orbiculatus sp. n., holotype 26–28 Grouvellinus sagittatus sp. n., holotype 23, 26 in ventral view 24, 27 in dorsal view; 25, 28 in lateral view. Scale bar: 0.2 mm.

Part of: Dongju B, Sun H (2016) A key to Grouvellinus Champion, 1923 from mainland China with descriptions of two new species (Coleoptera, Elmidae). ZooKeys 623: 89-104. https://doi.org/10.3897/zookeys.623.9610