Gastroserica (Gastroserica) vinhphuensis Ahrens, 2000 Material examined. 1 ♂ “N-Vietnam, Cao Bang Pr.Vic.Tinh Tuc, Pia Oac Top, Nui Pia Oac Nature Res. 22°36’50’’N, 105°53’20’’E 13.V.2014, 1400–1800 m leg. A. Weigel ” (NME), 1 ♂ “N-Vietnam, Cao Bang Pr. Vic. Tinh Tuc, Pia Oac Top, Nui Pia Oac Nature Res. 09–15.V.2014,850– 1300 m, 22°37’55’’N, 105°52’98’’E leg. A. Weigel ” (NME), 14 ♂♂ “N-Vietnam, Cao Bang Pr., Nguyen Binh Dis., Phia Oac-Phia Den N.P., light trap, 20.v.2020, 22°37’41’’N, 105°54’41’’E, 857 m leg. T.V. Hoang & P.V. Pham ” (IEBR), 1 ♂ “N-Vietnam, Cao Bang Pr., Nguyen Binh Dis., Phia Oac-Phia Den N.P., light trap, 25.v–7.vi.2011 ” (IEBR), 1 ♂ “ VIETNAM: Vinh Phu: Tam Dao Hill Stn; 2 km along 1°forest trail at W edge of town; 4–31.v.1996; B. Hubley; ROM 961005” (ROMC), 1 ♂ “ VIETNAM: Vinh Phu: Tam Dao Hill Stn; 1°forest edge SE town; fine mesh Malaise trap no pans; 930m; 6–31.v.1996; B. Hubley; ROM 961010 / 1233 Sericini Asia spec.” (ROMC), 13 ♂♂ “N-Vietnam, Vinh Phuc Pr., Tam Dao N.P., light trap, 15–28.v.2004 ” (IEBR).

Published as part of Ahrens, Dirk & Pham, Phu, 2023, Updates on the taxonomy and distribution of Gastroserica Brenske, 1897, Microserica Brenske, 1894, and Moronoserica Ahrens, Lukic & Liu, 2023 (Coleoptera: Scarabaeidae: Sericinae: Sericini), pp. 551-566 in Zootaxa 5346 (5) on page 559, DOI: 10.11646/zootaxa.5346.5.3, http://zenodo.org/record/8390721