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) Author Ahrens, Dirk 0000-0003-3524-7153 Zoologisches Forschungsmuseum A. Koenig, Adenauerallee 127, 53113 Bonn, Germany ahrens. dirk _ col @ gmx. de; https: // orcid. org / 0000 - 0003 - 3524 - 7153 ahrens.dirk_col@gmx.de Author Zhao, Ming-Zhi 0000-0002-3158-6177 College of Plant Protection, South China Agricultural University, 483 Wushan Road, Guangzhou 510642, P. R. China zhaomzhai @ 126. com; https: // orcid. org / 0000 - 0002 - 3158 - 6177 zhaomzhai@126.com Author Pham, Phu Van 0000-0001-9369-6649 Institute of Ecology and Biological resources, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet, Cau Giay, Hanoi, Vietnam phupham. iebr @ gmail. com; https: // orcid. org / 0000 - 0001 - 9369 - 6649 phupham.iebr@gmail.com Author Liu, Wan-Gang 0000-0003-3524-7153 Zoologisches Forschungsmuseum A. Koenig, Adenauerallee 127, 53113 Bonn, Germany ahrens. dirk _ col @ gmx. de; https: // orcid. org / 0000 - 0003 - 3524 - 7153 & SKLLQG, Institute of Earth and Environment, Chinese Academy of Sciences, Yanxiang Road 97, Yanta District, Xi’an 710061 P. R. China liuwangang @ ieecas. cn; https: // orcid. org / 0000 - 0003 - 4788 - 7967 & Zoologisches Forschungsmuseum A. Koenig, Adenauerallee 127, 53113 Bonn, Germany ahrens. dirk _ col @ gmx. de; https: // orcid. org / 0000 - 0003 - 3524 - 7153 ahrens.dirk_col@gmx.de text Zootaxa 2024 2024-08-01 5491 1 1 89 http://dx.doi.org/10.11646/zootaxa.5491.1.1 journal article 10.11646/zootaxa.5491.1.1 1175-5334 13211849 0612E62C-A53D-42BE-8578-68EC77D34627 Serica ( Serica ) heydeni (Reitter, 1896) Additional material examined. 2ex. “ China : Qinghai province Yunning Si[lamasery], 2890m , 36°45.6′N 102°10.6′E 1.–2.VII.2005 , J. Hájek, D. Král, & J. Růžička leg. ( NMPC ), 14 ex. " China : Gansu province , Sangke env., 3057m , 35°06.7′N 102°25.1′E 21.VI.2005 , J. Hájek, D. Král, & J. Růžička leg.” ( NMPC ), 33 ex. “ China : Gansu province , Lazikou valley, 2120–2510m , 34°09.9–10.1′N 103°48.2–51.9′E 28.VI.2005 , J. Hájek, D. Král, & J. Růžička leg.” ( NMPC ), 1 ex. “ China : Gansu province , Lazikou pass, 3180m , 34°13.8′N 103°54.0′E 29.VI.2005 , J. Hájek, D. Král, & J. Růžička leg.” ( NMPC ), 7 ex. “ China , Sichuan pr., Maoxian env. 29.vi.2003 , 2600–3000m , leg. S. Murzin” ( CP ), 3 ex. “ China , NW Sichuan prov. valley 39km SSW Zamtang, 31,54N / 100,58E , 3700m , coniferous forest/ clearing J.Kaláb leg., 16.–19.vii.2001 ” ( CP ), 1 ex. “ China , NW Sichuan prov. valley 15km SSW Zamtang, 32,09N / 100,55E , 3500m , J.Kaláb leg., 5.–19.vii.2001 , coniferous forest/ clearings” ( CP ), 1 ex. “ China , S. Gansu , 22km N Wen Xian, 33,09N / 104,41E , 2700m , J. Kaláb leg., 3.vii.2004 ” ( CP ), 2 ex. “ China , N Sichuan prov. , valley 50km EN N Heishui, 32,14–21N/ 103,24–27E, 3000–3500m , J.Kaláb leg., 24.–25.vii.2004 ” ( CP ), 2 ♂♂ “ China ( Qinghai Prov. ) Daban Shan, 62 km NNW Honggu 2240m , 36°51′28″N / 102°37′07.6″E (creek valley, Picea-Populus-Betula forest, pitfall traps, vinegar) 26.–29.VI.2011 D.W. Wrase (09A)” ( ZFMK ), 1 ♂ “ China ( Qinghai Prov. ) Daban Shan, 62 km NNW Honggu 2275m , 36°51′26.8″N / 102°36′50.2″E (creek valley, Picea-Populus-Betula forest, litter sifted) 10.VI.2011 D.W. Wrase (09F)” ( ZFMK ), 1 ♂ “ China ( Qinghai Prov. ) Daban Shan, 60 km NNW Honggu 36°49′10.7″N / 102°31′22.8″E (mixed forest Betula, Populus, Picea-, pitfall traps, vinegar) 11.–15.VI.2011 D.W. Wrase (08C)” ( ZFMK ), 13 ex. “China-Sichuan: Nördl. Zhedon-Pass, 3700m 2.7.1996 D. Erber” ( ZMHB ), 1 ♂ [ China ] “Luqu, Gansu , 29.VI.2008 , 3150m , leg. Ren Guodong etc.” ( HBUM ), 4 ♂♂ “Kan-ssu 1885 G. Patanin” ( ZIN ), 1 ♂ “China, W Henan , 7.–8.VII.2007 Funiu Shan, N33°42′, E112°15′, Shirenshan, 1500m , leg. Jaroslav Turna“ ( ZFMK ), 3 ♂♂ “ China : Gansu province , Sangke env., 3057 m , 35°06.7′N 102°25.1′E , 21.VI.2005 , J. Hájek, D. Král, J. Růžička leg.” ( NMPC ), 2 ♂♂ , 2 ♀♀ “ 2022.VI.19 [China] Sichuan , Heishui County, Luhua Town, Simei Village, Simeigou, 2670 m , Hao Xu, Ting Xiong, Xin-Yuan Zhang MYNU” ( CZMZ , MYNU ), 2 ♀♀ “ 2022.VI.23 [ China ] Sichuan , Heishui County, Luhua Town, Rela Village, E’erba, 2640 m , Hao Xu, Ting Xiong, Xin-Yuan Zhang MYNU” ( CZMZ , MYNU ), 2 ♂♂ , 4 ♀♀ “ 2022.VI.21 [China] Sichuan , Heishui County, Shashiduo Township, Gansiba Village, N32.1048, E102.7562, 3070 m , Hao Xu, Ting Xiong, Xin-Yuan Zhang MYNU” ( CZMZ , MYNU ), 2 ♂♂ “ CHINA , Gansu , Diebu, Dian’ga 34.06463611°N , 103.25075450°E 2514 m , 30.VI.2023 at light, Yu-Long Zhang leg.” ( CZMZ ), 1 ♀ “ CHINA , Sichuan , Jiuzhaigou Zhangzha Town 33.308098°N , 103.794914°E 2225 m , 3–4.VII.2023 at light, Yu-Long Zhang leg.” ( CZMZ ), 13 ♂♂ “ CHINA N Sichuan 2018 Sanluogou, Huanglong Shan, N 32°46′5″ E 103°55′25″, 15– 17.6. 2611 m, leg. C. Reuter” ( ZFMK ).