Maladera detersa (Erichson, 1834) group

Key to species of the Maladera detersa (Erichson, 1834) group occurring in China (³³):

1 Parameres as long or longer than phallobase................................................................ 2

1’ Parameres shorter than phallobase............................................. Maladera detersa (Erichson, 1834)

2 Parameres subsymmetrical.............................................................................. 3

2’ Parameres distinctly asymmetrical................................ Maladera kalawensis Ahrens, Fabrizi & Liu, sp. n.

3 Basal and distal lobes of parameres straight at apex.................. Maladera paradetersa Ahrens, Fabrizi & Liu, sp. n.

3’ Basal and distal lobes of parameres reflexed externally at apex....... Maladera liaochengensis Ahrens, Fabrizi & Liu, sp. n.