A taxonomic review of Microserica Brenske, 1894 from continental Asia (Coleoptera: Scarabaeidae: Melolonthinae: Sericini) Author Ahrens, Dirk 0000-0003-3524-7153 ahrens.dirk_col@gmx.de Author Liu, Wangang 0000-0003-4788-7967 liuwangang@ieecas.cn Author Lukic, Daniel 0000-0003-3524-7153 ahrens.dirk_col@gmx.de Author Bai, Ming 0000-0003-3524-7153 ahrens.dirk_col@gmx.de text Zootaxa 2023 2023-02-14 5241 1 1 115 http://dx.doi.org/10.11646/zootaxa.5241.1.1 journal article 264123 10.11646/zootaxa.5241.1.1 a71faa3e-24ed-473b-ab98-030b12ae9979 1175-5326 7639734 BBC27B5B-C657-469C-8F31-16E267B1DFF2 Microserica avicula group Key to species of the Microserica avicula group (♁♁): 1 Phallobase at apex with one or two dorsal processes.......................................................... 2 - Phallobase at apex without dorsal processes................................................................. 4 2 Dorsal process simple, not split at apex........................ Mic. multipunctata Ahrens, Lukic & Liu, new species - Dorsal process double or split at apex..................................................................... 3 3 Phallobase at apex with two dorsal processes...................... Mic. paravicula Ahrens, Lukic & Liu, new species - Phallobase at apex with one dorsal process that is split into two tips before apex. ................................................................................................. Mic. avicula (Arrow, 1946) new combination 4 Dorsal surface and elytra yellow, with multiple small dark spots, almost glabrous.................................. 5 - Dorsal surface and elytra brown, without dark spots, elytra with sparse white scales................................. 8 5 Insertion of left paramere displaced dorsally at phallobase..................................................... 6 - Insertion of left paramere lateral......................................................................... 7 6 Left paramere subequal in length to the right one. Antennal club 1.5 times as long as remaining antennomeres combined.............................................................. Mic. cucphuong Ahrens, Lukic & Liu, new species - Left paramere much shorter than the right one. Antennal club little longer than remaining antennomeres combined................................................................... Mic. ferestictica Ahrens, Lukic & Liu, new species 7 Antennal club slightly shorter, 1.7 times as long as remaining antennomeres combined. Left paramere shorter and stouter........................................................... Mic. hieroglyphica Ahrens, Lukic & Liu, new species - Antennal club longer, twice as long as remaining antennomeres combined. Left paramere longer and narrower................................................................... Mic. caiyangheana Ahrens, Lukic & Liu, new species 8 Left paramere very short, less than half as long as right one................................................................................................ Mic. costisquamosa (Ahrens, Fabrizi & Liu, 2019 ) new combination - Left paramere longer, subequal in length to the right one................ Mic. vinden Ahrens, Lukic & Liu, new species