Additions to the Neoserica calva group from continental South East Asia (Coleoptera: Scarabaeidae: Melolonthinae: Sericini) Author Ahrens, Dirk Zoologisches Forschungsmuseum A. Koenig, Adenauerallee 160, 53113 Bonn, Germany. 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 text Zootaxa 2021 2021-09-08 5032 3 357 378 journal article 10.11646/zootaxa.5032.3.3 1175-5326 5494695 C4661845-E123-42E7-8689-101E761EB173 Neoserica pingbianensis Ahrens, Fabrizi & Liu, 2019 Additional material examined. 1 ♂ “ Coll. I.R.Sc.N.B. Vietnam , Hoang Lien N.P. 22°21’00’’N , 103°46’20’’E 1- 5.vii.2013 light trap Leg. J. Constant & J. Bresseel , I.G.: 32.454” ( ISNB ), 1 ♂ [ Vietnam ] “ Copia Nature Reserve , Thuan Chau , Son La , UV light trap , 14.V.2017 , leg. P. V. Pham ” ( IEBR ), 1 ♂ [ Vietnam ] “ Copia Nature Reserve , Thuan Chau , Son La , UV light trap , 14.V.2017 , leg. P. V. Pham ” ( IEBR ), 3 ♂♂ “ Vietnam N ( Sa Pa ) Lao Cai Prov. , 250 km from Hanoi bearing 31°, Sa Pa vill. env. Hoang Lien Son Nat. Res. 1.- 6.7.1998 1250 m leg. A. Napolov ” ( CNA , ZFMK ), 2 ♂♂ “ Vietnam N ( Sa Pa ) Lao Cai Prov. , 250 km from Hanoi bearing 31°, Sa Pa vill. env. Hoang Lien Son Nat. Res. 16.- 20.6.1998 1250 m leg. A. Napolov ” ( CNA , ZFMK ), 1 ♀ “ Vietnam N ( Sa Pa ) Lao Cai Prov. , 250 km from Hanoi bearing 31°, Sa Pa vill. env. Hoang Lien Son Nat. Res. 9.- 15.6.1998 1250 m leg. A. Napolov ” ( CNA ) . Remark. The species was so far recorded only from China (Fabrizi et al. 2019); now it is for the first time recorded from Vietnam .