Belisana luxi 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.11356050
persistent identifier	https://treatment.plazi.org/id/07669D20-542E-5102-A1E8-096AD1457AE7
treatment provided by	ZooKeys by Pensoft
scientific name	Belisana luxi Zhang, Li & Yao
status	sp. nov.

Treatment

Belisana luxi Zhang, Li & Yao sp. nov.

Figs 8 View Figure 8 , 9 View Figure 9 , 18 G, H View Figure 18 , 20 G, H View Figure 20

Type material.

Holotype ♂ ( IZCAS - Ar 44964 ) and paratypes 1 ♂ ( IZCAS - Ar 44965 ) 3 ♀ ( IZCAS - Ar 44966–68 ), Xianfo Cave (24 ° 19.971 ' N, 98 ° 30.943 ' E, 1081 m), Mangliu Village , Luxi, Dehong, Yunnan, China, 03 / 08 / 2010, C Wang, Q Zhao & L Lin leg. GoogleMaps

Etymology.

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

Diagnosis.

The new species resembles B. lincang sp. nov. (Figs 6 View Figure 6 , 7 View Figure 7 , 18 E, F View Figure 18 , 20 E, F View Figure 20 ) by having similar epigyne and pore plates (Figs 9 A, B View Figure 9 , 20 G, H View Figure 20 ), but can be distinguished by differences in males: cheliceral distal apophyses pointing downwards (Fig. 9 D View Figure 9 vs inwards), procursus without dorso-distal membranous lamella (Figs 8 C View Figure 8 , 18 G View Figure 18 vs present) and with angular ventro-subdistal membranous process (arrow 3 in Figs 8 C View Figure 8 , 18 G View Figure 18 vs distally pointed), bulbal apophysis distally blunt (Fig. 9 C View Figure 9 vs distally angular); differences in females: epigynal pockets widely separated (Figs 9 A, B View Figure 9 , 20 G, H View Figure 20 vs closer to each other), vulva without sac-like structure (Figs 9 B View Figure 9 , 20 H View Figure 20 vs present), sclerotized part of anterior arch strongly curved (Figs 9 B View Figure 9 , 20 H View Figure 20 vs straight).

Description.

Male (holotype): Total length 2.25 (2.40 with clypeus), carapace 0.83 long, 0.84 wide, opisthosoma 1.42 long, 1.08 wide. Leg I: 15.92 (4.30, 0.33, 4.20, 5.75, 1.34), leg II: 9.31 (2.48, 0.31, 2.35, 3.40, 0.77), leg III: 6.39 (1.64, 0.29, 1.56, 2.25, 0.65), leg IV: 9.07 (2.56, 0.31, 2.35, 3.09, 0.76); tibia I L / d: 53. Eye inter-distances and diameters: PME – PME 0.11, PME 0.10, PME – ALE 0.04, AME absent. Sternum width / length: 0.65 / 0.63. Habitus as in Fig. 9 E, F View Figure 9 . Carapace yellowish, with brown median band; sternum yellowish. Legs whitish, without darker rings. Opisthosoma yellowish, without spots. Thoracic furrow absent. Clypeus unmodified. Chelicerae (Fig. 9 D View Figure 9 ) with a pair of proximo-lateral apophyses and a pair of curved distal apophyses (distance between tips: 0.41). Palp as in Fig. 8 A, B View Figure 8 ; trochanter with ventral apophysis (as long as wide, arrow in Fig. 8 B View Figure 8 ); procursus simple proximally but complex distally, with prolatero-distal membranous process (arrow 1 in Figs 8 C View Figure 8 , 18 G View Figure 18 ) bearing narrow lateral sclerite, sclerotized dorso-subdistal apophysis (arrow 2 in Figs 8 C View Figure 8 , 18 G View Figure 18 ), and angular ventro-subdistal membranous process (arrow 3 in Figs 8 C View Figure 8 , 18 G View Figure 18 ); bulb (Fig. 9 C View Figure 9 ) with distally blunt apophysis and simple embolus. Retrolateral trichobothria on tibia I at 14 % proximally; legs with short vertical setae on metatarsi; tarsus I with 20 distinct pseudosegments.

Female (paratype, IZCAS - Ar 44966 ): Similar to male, habitus as in Fig. 9 G, H View Figure 9 . Total length 2.51 (2.65 with clypeus), carapace 0.89 long, 0.89 wide, opisthosoma 1.62 long, 1.36 wide; tibia I: 2.37; tibia I L / d: 30. Eye inter-distances and diameters: PME – PME 0.09, PME 0.08, PME – ALE 0.03, AME absent. Sternum width / length: 0.61 / 0.56. Epigyne (Figs 9 A View Figure 9 , 20 G View Figure 20 ) simple and flat, with a pair of postero-lateral pockets 0.38 apart. Vulva (Figs 9 B View Figure 9 , 20 H View Figure 20 ) with ridge-shaped, posteriorly sclerotized anterior arch and a pair of curved, long elliptic pore plates (6 × longer than wide).