Key to species of the Maladera sinica (Hope, 1845) group occurring in China (³³):

1 Basal third of metatibia with a serrate line beside dorsal margin.................... Maladera kreyenbergi (Moser, 1918)

1’ Base metatibia without a serrate line beside dorsal margin, or, if present, very short................................. 2 2 Base of metatibia without a serrate line beside dorsal margin. Left paramere without blunt lateral extension.............. 3

2’ Base metatibia with a serrate line beside dorsal margin in basal quarter. Left paramere with a blunt lateral extension....... 4

3 Filiform distal process of basal lobe of right paramere hooked at apex..................... Maladera sinica (Hope, 1845)

3’ Filiform distal process of basal lobe of right paramere straight at apex............. Maladera opacifrons (Fairmaire, 1891)

4 Filiform distal process of basal lobe of right paramere weakly curved, with base of distal process covered by the basal lobe............................................................ Maladera danfengensis Ahrens, Fabrizi & Liu, sp. n.

4’ Filiform distal process of basal lobe of right paramere strongly curved with base of distal process not covered by the basal lobe.................................................................. Maladera nigrobrunnea (Moser, 1926)