Belisana bijie Wang, S. Li & Yao 2024, sp. nov.
Creators: name: Wang, Bing
name: Li, Jinglin
name: Li, Shuqiang
name: Yao, Zhiyuan
Publisher: name: Zenodo
Year: 2024
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Arachnida
Araneae
Pholcidae
Belisana
Belisana bijie

description: Belisana bijie Wang, S. Li & Yao sp. nov.
Figs 2, 3, 22 A, B, 24 A, B
Type material.
Holotype: China • ♂; Guizhou, Bijie, Qixingguan District, Salaxi Town, Shuanglongdao Cave; 27 ° 11.493 ' N, 105 ° 03.850 ' E; alt. 1920 m; 18 Nov. 2011; Z. Chen & Z. Zha leg.; IZCAS - Ar 45175. Paratype: China • 1 ♀; same data as for holotype; IZCAS - Ar 45176.
Diagnosis.
The new species resembles B. wangchengi Wang, Yao & Zhang, 2024 (Wang et al. 2024: 2, figs 1 A – D, 2 A – H, 3 A – D) by having similar male chelicerae (tips of distal apophyses widely separated and pointing inwards; Fig. 3 D), bulbal apophysis (hooked; Fig. 3 C), and epigyne (epigynal pockets on lateral part of epigynal plate; Figs 3 A, 24 A), but can be distinguished by procursus with retrolatero-subdistal membranous process (arrow 3 in Figs 2 D, 22 B vs absent), by vulval pore plates with nearly angular sclerites (arrow in Figs 3 B, 24 B vs blunt), and by dorsal shield of prosoma with lateral brown bands (Fig. 3 E, G vs absent, but with median radiating marks).
Description.
Male (holotype): Total length 1.95 (2.08 with clypeus), prosoma 0.70 long, 0.82 wide, opisthosoma 1.25 long, 0.90 wide. Leg I: 19.96 (5.13, 0.38, 5.05, 7.52, 1.88), leg II: 13.25 (3.52, 0.37, 3.32, 4.70, 1.34), leg III: 7.81 (2.25, 0.30, 1.90, 2.59, 0.77), leg IV: 9.83 (3.09, 0.30, 2.45, 3.16, 0.83); tibia I L / d: 73. Eye interdistances and diameters: PME – PME 0.11, PME 0.10, PME – ALE 0.02. Sternum width / length: 0.63 / 0.56. Habitus as in Fig. 3 E, F. Dorsal shield of prosoma yellowish, with brown lateral bands; clypeus brown; sternum yellowish. Legs whitish, without darker rings. Opisthosoma yellowish, with black spots. Thoracic furrow absent. Clypeus unmodified. Chelicerae with pair of proximo-lateral apophyses (pa in Fig. 3 D) and pair of curved distal apophyses (distance between tips: 0.31; da in Fig. 3 D). Palp as in Fig. 2 A, B; trochanter with ventral apophysis (2 × longer than wide, arrow 1 in Fig. 2 B); femur with retrolatero-proximal protrusion (arrow 2 in Fig. 2 B); procursus simple proximally but complex distally, with prolatero-subdistal sclerite (arrow 1 in Figs 2 C, 22 A), prolatero-distal membranous lamella (arrow 2 in Figs 2 C, 22 A) bearing proximally sclerotized part, sclerotized dorso-subdistal apophysis (arrow 1 in Figs 2 D, 22 B), retrolatero-distal spine (arrow 2 in Figs 2 D, 22 B), retrolatero-subdistal membranous process (arrow 3 in Figs 2 D, 22 B), and retrolateral membranous flap (f in Figs 2 D, 22 B); bulb with hooked apophysis (ba in Fig. 3 C) and simple embolus (e in Fig. 3 C). Retrolateral trichobothria on tibia I at 9 % proximally; legs with short vertical setae on metatarsi; tarsus I with 17 distinct pseudosegments.
Female (paratype, IZCAS - Ar 45176): Similar to male, habitus as in Fig. 3 G, H. Total length 1.96 (2.09 with clypeus), prosoma 0.66 long, 0.83 wide, opisthosoma 1.30 long, 1.01 wide; tibia I: 3.40; tibia I L / d: 49. Eye interdistances and diameters: PME – PME 0.10, PME 0.10, PME – ALE 0.02. Sternum width / length: 0.60 / 0.53. Dorsal shield of prosoma with distinct postero-median marks; clypeus yellowish. Epigyne simple and flat, posteriorly curved, with pair of lateral pockets 0.31 apart (ep in Figs 3 A, 24 A). Vulva with ridge-shaped anterior arch bearing pair of nearly angular sclerites (arrow in Figs 3 B, 24 B), and pair of nearly triangular pore plates (4 × longer than wide, pp in Figs 3 B, 24 B).
Habitat.
The species was found in the dark zone inside the cave.
Distribution.
China (Guizhou, type locality; Fig. 1).
Etymology.
The specific name refers to the type locality; noun in apposition.
description: Published as part of Wang, Bing, Li, Jinglin, Li, Shuqiang & Yao, Zhiyuan, 2024, Nine new spider species of Belisana Thorell, 1898 (Araneae, Pholcidae) from karst caves, with a list of species of the genus from Guizhou, southwestern China, pp. 265-302 in ZooKeys 1216 on pages 265-302, DOI: 10.3897/zookeys.1216.132561