A monograph of the genus Maladera Mulsant & Rey, 1871 of China (Coleoptera: Scarabaeidae: Melolonthinae: Sericini) Author Fabrizi, Silvia 0000-0003-3524-7153 ahrens.dirk_col@gmx.de Author Liu, Wan-Gang 0000-0003-4788-7967 liuwangang@ieecas.cn Author Bai, Ming 0000-0003-3676-6828 liuwangang@ieecas.cn Author Yang, Xing-Ke 0000-0003-3676-6828 liuwangang@ieecas.cn Author Ahrens, Dirk 0000-0003-3524-7153 ahrens.dirk_col@gmx.de text Zootaxa 2021 2021-02-03 4922 1 1 400 journal article 8257 10.11646/zootaxa.4922.1.1 188411de-569c-4408-a016-1a04b858c142 1175-5326 4496316 D7F9C6A3-9C28-4F4C-8E81-BF24849FDD8C 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.