Gastroserica bisignata ( Nomura, 1974 ) Ahrens & Liu & Lukic & Bai, 2023

Ahrens, Dirk, Liu, Wangang, Lukic, Daniel & Bai, Ming, 2023, A taxonomic review of Microserica Brenske, 1894 from continental Asia (Coleoptera: Scarabaeidae: Melolonthinae: Sericini), Zootaxa 5241 (1), pp. 1-115 : 16

Gastroserica bisignata ( Nomura, 1974) new combination

Figs. 4A–D , 24

Microserica bisignata Nomura, 1974: 98 ; Ahrens 2006a: 238; 2007b: 25; Ahrens & Bezděk 2016: 298.

Material examined. 1 Ô “Mt. An-ma-shan Taichung, Taiwan 12th vii 1992 C. Yu leg.” ( ZFMK) .

Gastroserica nitidipyga ( Nomura, 1974) new combination

Figs. 4E–H , 25

Microserica nitidipyga Nomura, 1974: 98 ; Ahrens 2006a: 239; 2007b: 25; Ahrens & Bezděk 2016: 298.

Material examined. 1 Ô [ China] “ Cujiang, Huaping , Guangxi, 7.VI.1963, leg. Yang Jikun / LW-356” ( CAU), 1 Ô “China: Fujian Province; Mt. Liang-shan-ding, Wuping County, July 2- 13, 2009 local collectors Ankauf via Li Jingke 2010” ( ZFMK) .

Figures

FIGURE 4. A–D: Gastroserica bisignata (Nomura, 1974) (Taiwan: Mt.Anmashan); E–H: M. nitidipyga Nomura, 1974 (China: Fujian: Mt. Liangshan-ding); I–L: G. yuebaensis Ahrens, Lukic & Liu, new species (holotype). A, E, I: Aedeagus, left side lateral view; C, G, K: Aedeagus, right side lateral view; B, F, J: Parameres, dorsal view; D, H, L: Habitus (not to scale). Scale: 0.5 mm.

FIGURE 24. Distribution of the genus Gastroserica (Helioserica Ahrens, Lukic & Liu, new subgenus), part 1.

FIGURE 25. Distribution of the genus Gastroserica (Helioserica Ahrens, Lukic & Liu, new subgenus), part 2.