Serica (Serica) pigrans Ahrens & Fabrizi, 2009

Ahrens, Dirk, Zhao, Ming-Zhi, Pham, Phu Van & Liu, Wan-Gang, 2024, Taxonomic updates on Pachyserica Brenske, 1898 and Serica MacLeay, 1819 reveal 38 new species and new challenges of Sericini systematics regarding DNA barcodes and genus-level diagnostic key characters (Coleoptera: Scarabaeidae: Sericinae), Zootaxa 5491 (1), pp. 1-89 : 57-58

Serica (Serica) pigrans Ahrens & Fabrizi, 2009

Additional material examined. 1 ♂ [ China ] “Chayu, Xizang, 22.VII.2009, leg. Ren Guodong ” ( HBUM) , 1 ♂ [ China ] “Yigong, Xizang, 30.VII.1978, 2300m, leg. Li Fasheng ” ( CAU) , 2 ♂♂ [ China ] “Yigong, Bomi, Xizang, 14, 22.VIII.1983, 2300m, leg. Han Yinheng ” ( IZAS) , 1 ♂ “ China: Tibet, Nyingchi Pélung ( Pailong ), 2130 m 1-VI-2021 Si-Yao Huang leg. / Serica rectidens Ahrens & Fabrizi, 2009 det. Zhao Ming-zhi, 2022” ( ZFMK) , 8 ♂♂, 7 ♀♀ “ CHINA: Tibet, Nyingchi Pélung ( Pailong ), 2130 m 1-VI-2021 Si-Yao Huang leg. / Serica rectidens Ahrens & Fabrizi, 2009 det. Zhao Ming-Zhi, 2022” ( CZMZ) .

Remarks. These specimens of Serica pigrans from Xizang show somewhat intermediate features in apical phallobase (indistinct concave fold (in lateral view) beside median distal emargination, which is entirely absent in S. daliensis ) with Serica khaijiaris Mittal, 1988 , but the small spiniform basolateral process is always present (it is lacking in S. khaijiaris ). Compared to S. daliensis , in which the right paramere is straighter and narrower (in lateral view), the right paramere in S. pigrans is more robust and slightly curved (in lateral view).