Baiyuerius acroprocessus (Zhang, Zhu & Wang, 2017) Luo & Lu & Zhang & Wang, 2023

Luo, Bin, Lu, Feng, Zhang, Zhi-Sheng & Wang, Lu-Yu, 2023, A further study on the spider genus Baiyuerius Zhao, Li & Li, 2023, from China (Agelenidae, Coelotinae), ZooKeys 1184, pp. 91-102 : 91

Baiyuerius acroprocessus (Zhang, Zhu & Wang, 2017) comb. nov.

Figs 1 , 7 (顶突百越蛛)

Draconarius acroprocessus Zhang, Zhu & Wang in Zhu et al. 2017: 220, fig. 107A-C (♂).

Material examined.

1 male (holotype, SWUC-T-AG-19-01): China, Hubei Province, Xuanen County, Jiaoyuan Town , 30 Augustus 2004, Z.S. Zhang & H.M. Chen leg.

Diagnosis.

Male resembles that of B. zhuping Zhao, Li & Li, 2023 in having the similar patellar apophysis with a pointed distal end, cymbial furrow almost half the length of cymbium (Fig. 1 ; Zhao et al. 2023: fig. 5A-C), but B. acroprocessus comb. nov. can be distinguished from the latter by the following: conductor dorsal apophysis with bifurcated apex and strongly sclerotized (Fig. 1A-C ) vs unbifurcated in B. zhuping ( Zhao et al. 2023: fig. 5A-C); embolic base margin serrated in retrolateral view (Fig. 1A-C ) vs embolic base smooth in B. zhuping ( Zhao et al. 2023: fig. 5A-C); cymbial base with two hypophyses (Fig. 1A-C ) vs with one hypophysis in B. zhuping ( Zhao et al. 2023: fig. 5A-C).

Description (partial).

Pedipalp (Fig. 1A-C ): patellar apophysis thumb-shaped with pointed end; retrolateral tibial apophysis originating from midway along length of tibia; lateral tibial apophysis somewhat triangular, with blunt end; cymbial furrow half as long as cymbium; cymbial base with two hypophyses; median apophysis spoon-like; embolus originating at 7 o’clock; conductor translucent, with smooth, wrinkled surface and serrated margin; conductor dorsal apophysis with bifurcated apex and strongly sclerotized. Habitus as shown by Zhu et al. (2017). Female unknown.

Distribution.

China (Hubei) (Fig. 7 ).

Figures

Figure 1. Baiyuerius acroprocessus (Zhang, Zhu & Wang, 2017), comb. nov., male holotype A left male pedipalp, prolateral view B same, ventral view C same, retrolateral view. Arrows show the hypophysis of cymbium. Abbreviations: A = atrium; C = conductor; CDA = dorsal apophysis of conductor; CF = cymbial furrow; E = embolus; EB = embolic base; LTA = lateral tibial apophysis; MA = median apophysis; PA = patellar apophysis; PES = posterior epigynal sclerite; RTA = retrolateral tibial apophysis; ST = subtegulum; T = tegulum.

Figure 7. Distribution records of Baiyuerius species. 1 = B. acroprocessus (Zhang, Zhu & Wang, 2017) comb. nov.; 2 = B. daxi Zhao, B. Li & S. Li, 2023; 3 = B. globasus (Wang, Peng & Kim, 1996) comb. nov.; 4 = B. pindong Zhao, B. Li & S. Li, 2023; 5 = B. rugosus (Wang, Peng & Kim, 1996) comb. nov.; 6 = B. shenzhen sp. nov.; 7 = B. tamdao Zhao, B. Li & S. Li, 2023; 8. B. yuelu sp. nov.; 9 = B. zhuping Zhao, B. Li & S. Li, 2023; 10 = B. zuojiang Zhao, B. Li & S. Li, 2023 in China (blue circles indicate the distribution of species presented by Zhao et al. (2023)).