An overview on the genus Amiserica Nomura, 1974 (Coleoptera: Scarabaeidae: Melolonthinae: Sericini) Author Ahrens, Dirk 0000-0003-3524-7153 ahrens.dirk_col@gmx.de Author Liu, Wangang 0000-0003-3524-7153 ahrens.dirk_col@gmx.de Author Pham, Phu Van 0000-0001-9369-6649 phupham.iebr@gmail.com Author Fabrizi, Silvia 0000-0003-3524-7153 ahrens.dirk_col@gmx.de text Zootaxa 2021 2021-10-11 5050 1 1 63 http://dx.doi.org/10.11646/zootaxa.5050.1.1 journal article 3968 10.11646/zootaxa.5050.1.1 81282108-3550-4a28-83ca-15bb5b23881a 1175-5326 5560512 C0BF369D-F7CB-4139-A466-21E402A119B9 Amiserica jizuensis group Key to the species of the Amiserica jizuensis group ( ♂♂ ) 1 Elytral surface shiny................................................................................... 2 - Elytral surface dull.................................................................................... 4 2 Insertion of parameres at the same level. Antennal club twice as long as remaining antennomeres combined.................................................................. A. carolusholzschuhi Ahrens, Fabrizi & Liu , new species - Insertion of left paramere distinctly displaced distally......................................................... 3 3 Long erect setae on pronotum directed anteriad. Phallobase on dorsal subapical part with a strong gibbosity. Antennal club as long as remaining antennomeres combined...................... A. gibbosiforceps Ahrens, Fabrizi & Liu , new species - Long erect setae on pronotum erect or directed posteriad. Phallobase on dorsal subapical part simple, without any gibbosity. Antennal club nearly twice as long as remaining antennomeres combined.................................................................................................. A. ventriscalptus Ahrens, Fabrizi & Liu , new species 4 Left paramere elongate, three times as long as wide. Right paramere longer, nearly twice as long as wide............................................................................. A. jizuensis Ahrens, Fabrizi & Liu , new species - Left paramere short, as long as wide. Right paramere short, subtriangluar................................................................................................... A. panghongae Ahrens, Fabrizi & Liu , new species