Baiyuerius zuojiang -species group

Diagnosis. Males of zuojiang- group species can be identified by 1) patella about 2 times wider than long, patellar apophysis strong and cylindrical, with blunt end (Figs 27C, 31C; figs 3C, 5C, 6C in Zhao et al. 2023; fig. 5G in Luo et al. 2023); 2) lateral tibial apophysis short or expanded, situated near the dorsal margin of tibia (Figs 27C, 31C; figs 3C, 5C, 6C in Zhao et al. 2023; fig. 5G in Luo et al. 2023); 3) cymbial furrow short, nearly triangular in shape, with indistinct dorsal margin (Figs 27C, 31C; figs 3C, 5C, 6C in Zhao et al. 2023; fig. 5G in Luo et al. 2023); 4) process of dorsal margin of conductor without basal stalk, serrated and strongly sclerotized (Figs 27B, 31B; figs 3B, 5B, 6B in Zhao et al. 2023; fig. 5F in Luo et al. 2023); 5) dorsal apophysis of conductor extremely long and with large basal lamellar (Figs 27D, E, 31D, E; figs 3B, 5B, 6B in Zhao et al. 2023; fig. 5F in Luo et al. 2023); 6) tegular sclerite short and approximately right-trapezoid-shaped (Figs 27B, 31B; figs 3B, 5B, 6B in Zhao et al. 2023; fig. 5F in Luo et al. 2023); 7) median apophysis small and strongly sclerotized (Figs 27B, 31B; figs 3B, 5B, 6B in Zhao et al. 2023; fig. 5F in Luo et al. 2023). Females can be identified by 1) epigynal teeth absent (Figs 29A, 33A; figs 1A, 7A in Zhao et al. 2023; fig. 5C in Luo et al. 2023); 2) posterior epigynal pocket obviously wider than long (Figs 29A, 33A; figs 1A, 7A in Zhao et al. 2023; fig. 5C in Luo et al. 2023).

Distribution. China (Guangdong Province and Guangxi Zhuang Autonomous Region).

Species included. Six species are included in this group: Baiyuerius carcharus sp. nov., B. daxi Zhao, B. Li & S. Li, 2023, B. fengbini sp. nov., B. pindong Zhao, B. Li & S. Li, 2023, B. shenzhen Luo, Lu, Zhang & Wang, 2023 and B. zuojiang Zhao, B. Li & S. Li, 2023 .