Pachyserica albosignata ( Moser, 1915 )

Zhao, Ming-Zhi & Ahrens, Dirk, 2023, New species of the tribe Sericini Kirby, 1837 from China, with further updates on their taxonomy and distribution (Coleoptera: Scarabaeidae: Sericinae), Zootaxa 5361 (2), pp. 181-220 : 215

Pachyserica albosignata ( Moser, 1915)

( Figs 3A , 4D )

Material examined. 1♂ ( CZMZ), “ CHINA: Guangdong, Shaoguan, Nanling N. R., nr. Shikengkong, N 24°55′40″, E 112°59′2″, 1660 m, 30.V–4.VI.2022 (at light), lgt. Ye XH, Zhan BX & Ma YS” ; 1♂ ( CZMZ), “ CHINA: Guangdong, Shaoguan, Ruyuan Co., Nanling N. R., N 24°55′32″, E 113°1′19″, 1027 m, 26–28.V.2022 (at light), lgt. Ming-Zhi Zhao et al. ” ; 1♂ ( SCAU), “ Guangdong, Nanling, leg. Rui-He Zhu, 2010.IV.26 ”; 1♂ ( SYSU), “ Mts. Nanling , 700- 1400m, Guangdong, 2005.v.11-16, Zhang C.T.” .

Remarks. This species was previously known from its type locality “Kiautschou” (i.e. Jiaozhou, a city in Shandong, northern China) and Fujian, while the record from Fujian is actually referring to Pachyserica dongnanensis Zhao & Ahrens , new species. A small series of P. albosignata was collected from Nanling Nature Reserve recently.

Kiautschou is the type locality of some other scarabs with farther southern distributions, e.g. Serica maculosa Moser, 1915 , Ischnopopillia erythropteroides Machatschke, 1975 , Cyphochilus ochraceus Moser, 1915 and Hoplosternus pygidialis Moser, 1915 (a junior subjective synonym of Tocama tonkinensis (Moser, 1913)) . Consequently, these specimens are supposed to be gathered from various areas of China and exported through Kiautschou. The data based merely on “Kiautschou” should be assigned to uncertain status in future works.

Figures

FIGURE 3. Habitus in dorsal view. A, Pachyserica albosignata (Moser, 1915), male (Guangdong); B, P. dongnanensis Zhao & Ahrens, new species, holotype; C, P. dongnanensis, male paratype (Guangdong); D, P. dongnanensis, female paratype (Fujian); E, P. jianfengensis Zhao & Ahrens, new species, holotype. Scale bar = 5 mm.

FIGURE 4. Aedeagus. A, Pachyserica dongnanensis Zhao & Ahrens, new species, holotype; B, P. dongnanensis, paratype (Guangxi); C, P. dongnanensis, paratype (Guangdong); D, P. albosignata (Moser, 1915), male (Guangdong); E, P. jianfengensis Zhao & Ahrens, new species, holotype. a, aedeagus in left lateral view; b, parameres in dorsal view; c, aedeagus in right lateral view. Scale bar = 1 mm.