Belisana jiuxiang Zhang, Li & Yao, 2024

Zhang, Ludan, Wu, Zheng, Li, Shuqiang & Yao, Zhiyuan, 2024, Eight new spider species of Belisana Thorell, 1898 (Araneae, Pholcidae), with an updated overview of Belisana species from Yunnan, China, ZooKeys 1202, pp. 255-286 : 255-286

publication ID

https://doi.org/ 10.3897/zookeys.1202.121633

publication LSID

lsid:zoobank.org:pub:F2DE6CAC-842E-4275-B3C1-C84D7CEDF5B7

DOI

https://doi.org/10.5281/zenodo.11356042

persistent identifier

https://treatment.plazi.org/id/B6A9BEA5-3AF2-5F6D-A8B4-C5D3C57E57CD

treatment provided by

ZooKeys by Pensoft

scientific name

Belisana jiuxiang Zhang, Li & Yao
status

sp. nov.

Belisana jiuxiang Zhang, Li & Yao sp. nov.

Figs 4 View Figure 4 , 5 View Figure 5 , 18 C, D View Figure 18 , 20 C, D View Figure 20

Type material.

Holotype ♂ ( IZCAS - Ar 44955 ) and paratypes 2 ♂ ( IZCAS - Ar 44956–57 ) 4 ♀ ( IZCAS - Ar 44958–61 ), Sanjiao Cave (25 ° 8.059 ' N, 103 ° 23.969 ' E, 1795 m), Jiuxiang Town , Yiliang County, Kunming, Yunnan, China, 08 / 04 / 2007, J Liu & Y Lin leg. GoogleMaps

Etymology.

The specific name refers to the type locality, which is a noun in apposition.

Diagnosis.

The new species resembles B. tianlinensis Zhang & Peng, 2011 ( Zhang and Peng 2011: 65, fig. 10 A – G) by having similar male chelicerae and bulbal apophyses (Fig. 5 C, D View Figure 5 ), but can be distinguished by differences in males: clypeus unmodified (Fig. 5 E View Figure 5 vs with front apophysis), procursus with pointed, sclerotized distal apophysis (arrow 1 in Figs 4 C View Figure 4 , 18 C View Figure 18 vs with dorso-distal spine) and dorso-subdistal membranous process (arrow 2 in Figs 4 C View Figure 4 , 18 C View Figure 18 vs absent); differences in females: epigyne with median pockets (Figs 5 A, B View Figure 5 , 20 C, D View Figure 20 vs lateral), pore plates quadrilateral (Figs 5 B View Figure 5 , 20 D View Figure 20 vs nearly triangular).

Description.

Male (holotype): Total length 1.64 (1.74 with clypeus), carapace 0.63 long, 0.67 wide, opisthosoma 1.01 long, 0.80 wide. Leg I: 14.84 (3.86, 0.33, 3.80, 5.15, 1.70), leg II: 9.62 (2.64, 0.26, 2.45, 3.17, 1.10), leg III: 6.82 (2.03, 0.19, 1.66, 2.28, 0.66), leg IV: 8.79 (2.56, 0.26, 2.25, 2.94, 0.78); tibia I L / d: 56. Eye inter-distances and diameters: PME – PME 0.13, PME 0.07, PME – ALE 0.02, AME absent. Sternum width / length: 0.53 / 0.48. Habitus as in Fig. 5 E, F View Figure 5 . Carapace and sternum yellowish, without marks. Legs whitish, without darker rings. Opisthosoma yellowish, without spots. Thoracic furrow absent. Clypeus unmodified. Chelicerae (Fig. 5 D View Figure 5 ) with a pair of proximo-lateral apophyses and a pair of curved distal apophyses (distance between tips: 0.16). Palp as in Fig. 4 A, B View Figure 4 ; trochanter with ventral apophysis (as long as wide, arrow 1 in Fig. 4 B View Figure 4 ); femur with tiny retrolatero-proximal protrusion (arrow 2 in Fig. 4 B View Figure 4 ); procursus simple proximally but complex distally, with pointed, sclerotized distal apophysis (arrow 1 in Figs 4 C View Figure 4 , 18 C View Figure 18 ), dorso-subdistal membranous process (arrow 2 in Figs 4 C View Figure 4 , 18 C View Figure 18 ), and nearly elliptic retrolateral flap (Figs 4 D View Figure 4 , 18 D View Figure 18 ); bulb (Fig. 5 C View Figure 5 ) with hooked apophysis and simple embolus. Retrolateral trichobothria on tibia I at 8 % proximally; legs with short vertical setae on metatarsi; tarsus I with 19 distinct pseudosegments.

Female (paratype, IZCAS - Ar 44958 ): Similar to male, habitus as in Fig. 5 G, H View Figure 5 . Total length 1.82 (1.92 with clypeus), carapace 0.73 long, 0.80 wide, opisthosoma 1.09 long, 0.83 wide; tibia I: 2.37; tibia I L / d: 36. Eye inter-distances and diameters: PME – PME 0.14, PME 0.06, PME – ALE 0.02, AME absent. Sternum width / length: 0.61 / 0.60. Epigyne (Figs 5 A View Figure 5 , 20 C View Figure 20 ) simple and flat, anteriorly slightly sclerotized, with a pair of median pockets 0.15 apart. Vulva (Figs 5 B View Figure 5 , 20 D View Figure 20 ) with ridge-shaped anterior arch bearing a pair of angular lateral sclerites (arrow in Figs 5 B View Figure 5 , 20 D View Figure 20 ) and a pair of quadrilateral pore plates.

Variation.

Tibia I in two male paratypes ( IZCAS - Ar 44956 –57 ): 3.91, 4.36. Tibia I in the other three female paratypes ( IZCAS - Ar 44959 –61 ): 2.84, 3.72, 3.78.

Habitat.

The species was found in the dark zone inside the cave.

Distribution.

China (Yunnan, type locality; Fig. 1 View Figure 1 ).

IZCAS

Institute of Zoology, Chinese Academy of Sciences

Kingdom

Animalia

Phylum

Arthropoda

Class

Arachnida

Order

Araneae

Family

Pholcidae

Genus

Belisana