Belisana chuandiani Li, Zheng & Yao, 2023

Zhao, Fangyu, Yang, Lan, Li, Shuqiang, Zheng, Guo & Yao, Zhiyuan, 2023, A further study on the Belisana spiders (Araneae: Pholcidae) from Xishuangbanna, Yunnan, China, Zootaxa 5351 (5), pp. 543-558 : 546-549

publication ID	https://doi.org/ 10.11646/zootaxa.5351.5.3
publication LSID	lsid:zoobank.org:pub:1BD2A231-4D66-47A7-8EE6-4A1C241C4190
DOI	https://doi.org/10.5281/zenodo.8392329
persistent identifier	https://treatment.plazi.org/id/03CA8799-E728-FFC1-12C1-D475DD78FE0A
treatment provided by	Plazi
scientific name	Belisana chuandiani Li, Zheng & Yao
status	sp. nov.

Treatment

Belisana chuandiani Li, Zheng & Yao sp. nov.

Figs 2–3 View FIGURE 2 View FIGURE 3 , 9A–B View FIGURE 9 , 10A–B View FIGURE 10

Type material. Holotype: Male (SYNU-Ar00308), near Mandian Falls (22°7.845’N, 100°39.749’E, elevation 736 m), Nabanhe Nature Reserve, Xishuangbanna, Yunnan, China, 22 August 2012, Guo Zheng, Xue Li, and Wenyue Zhu leg. GoogleMaps Paratype: 1 female (SYNU-Ar00309), same data as holotype GoogleMaps .

Etymology. The specific name is a patronym in honor of the late Chinese arachnologist Chuandian Zhu; noun (name) in the genitive case.

Diagnosis. The new species resembles B. gupian Yao & Li, 2018 ( Yao et al. 2018: 247, figs 3–4, 11B, 12B) having similar bulbal apophyses ( Fig. 3C View FIGURE 3 ), male chelicerae ( Fig. 3D View FIGURE 3 ), and shape of epigyne ( Fig. 3A View FIGURE 3 ), but it can be distinguished by prolatero-subdistal sclerite of procursus nearly angular (arrow 1 in Figs 2C View FIGURE 2 , 9A View FIGURE 9 ; vs. half-round in B. gupian ), by procursus straight ( Figs 2A–B View FIGURE 2 , 9A–B View FIGURE 9 ; vs.distal part of procursus directed towards antero-ventrally in B. gupian ), and by vulval pore plates nearly elliptic ( Figs 3B View FIGURE 3 , 10B View FIGURE 10 ; vs. anteriorly strongly widened in B. gupian ).

Description. Male (holotype, SYNU-Ar00308): Total length 1.47 (1.56 with clypeus), prosoma 0.61 long, 0.55 wide, opisthosoma 0.86 long, 0.75 wide. Leg I: – (4.08 + 0.30 + – + – + –), leg II missing, leg III: 6.34 (1.74 + 0.23 + 1.54 + 2.16 + 0.67), leg IV: – (2.49 + 0.23 + 2.28 + – + –). Eye interdistances and diameters: PME-PME 0.06, PME 0.06, PME-ALE 0.03, AME absent. Sternum width/length: 0.46/0.43. Habitus as in Figs 3E–F View FIGURE 3 . Dorsal shield of prosoma and sternum yellowish, without marks. Legs whitish, without darker rings. Opisthosoma yellowish, with dorsal and lateral black spots. Thoracic furrow absent. Clypeus unmodified. Chelicerae ( Fig. 3D View FIGURE 3 ) with pair of proximo-lateral apophyses and pair of curved distal apophyses (distance between tips: 0.46). Pedipalp as in Figs 2A–B View FIGURE 2 ; trochanter two times longer than wide, with small retrolateral apophysis (arrow 1 in Fig. 2B View FIGURE 2 ); femur with retrolatero-proximal apophysis (arrow 2 in Fig. 2B View FIGURE 2 ); procursus ( Figs 2A–D View FIGURE 2 , 9A–B View FIGURE 9 ) simple proximally but complex distally, with nearly angular prolatero-subdistal sclerite (arrow 1 in Figs 2C View FIGURE 2 , 9A View FIGURE 9 ), nearly half-round, distally pointed distal membranous lamella (arrow 2 in Figs 2C View FIGURE 2 , 9A View FIGURE 9 ), and two retrolateral membranous lamellae (arrows in Figs 2D View FIGURE 2 , 9B View FIGURE 9 ); bulb ( Fig. 3C View FIGURE 3 ) with hooked apophysis and simple embolus. Legs with short vertical setae on metatarsi.

Female (paratype, SYNU-Ar00309): Similar to male, habitus as in Figs 3G–H View FIGURE 3 . Total length 1.63 (1.71 with clypeus), prosoma 0.60 long, 0.58 wide, opisthosoma 1.03 long, 0.70 wide; leg I missing. Eye interdistances and diameters: PME-PME 0.03, PME 0.08, PME-ALE 0.03. Sternum width/length: 0.44/0.47. Epigyne ( Figs 3A View FIGURE 3 , 10A View FIGURE 10 ) simple and flat, with pair of postero-lateral pockets 0.41 apart (ep in Figs 3A–B View FIGURE 3 , 10A–B View FIGURE 10 ). Vulva ( Figs 3B View FIGURE 3 , 10B View FIGURE 10 ) with ridge-shaped anterior arch and pair of curved, long elliptic pore plates.