Maladera detersa ( Erichson, 1834 )

Fabrizi, Silvia, Liu, Wan-Gang, Bai, Ming, Yang, Xing-Ke & Ahrens, Dirk, 2021, A monograph of the genus Maladera Mulsant & Rey, 1871 of China (Coleoptera: Scarabaeidae: Melolonthinae: Sericini), Zootaxa 4922 (1), pp. 1-400 : 173

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.