Belisana tongi Zhang, Li & Yao sp. nov.

Figs 12, 13, 18 K, L, 21 C, D

Type material.

Holotype ♂ (IZCAS - Ar 44975) and paratype s 4 ♀ (IZCAS - Ar 44976–79), Heilongtan Park (26 ° 53.259 ' N, 100 ° 14.034 ' E, 2155 m), Lijiang, Yunnan, China, 15 / 07 / 2021, Y Tong & D Bian leg.

Etymology.

The specific name is a patronym in honour of the collector Yanfeng Tong, which is a noun (name) in the genitive case.

Diagnosis.

The new species resembles B. yangi Zhang & Peng, 2011 (Zhang and Peng 2011: 65, fig. 11 A – H) by having similar male chelicerae, bulbal apophyses, and epigyne (Figs 13 A, C, D, 21 C), but can be distinguished by differences in males: procursus with distal membranous process (arrow 2 in Figs 12 C, 18 K vs absent) and dorso-distal spine (arrow 3 in Figs 12 C, 18 K vs absent); differences in females: epigyne with posterior pockets (Figs 13 A, B, 21 C, D vs anterior), vulva with four distinct median teeth (arrows in Figs 13 B, 21 D vs absent), pore plates nearly triangular (Figs 13 B, 21 D vs elliptic).

Description.

Male (holotype): Total length 1.96 (2.08 with clypeus), carapace 0.71 long, 0.75 wide, opisthosoma 1.25 long, 0.80 wide. Leg I: 12.57 (3.30, 0.32, 3.22, 4.50, 1.23), leg II: 8.49 (2.35, 0.28, 2.03, 2.88, 0.95), leg III missing, leg IV: 7.38 (2.15, 0.26, 1.84, 2.43, 0.70); tibia I L / d: 45. Eye inter-distances and diameters: PME – PME 0.12, PME 0.08, PME – ALE 0.02, AME absent. Sternum width / length: 0.51 / 0.48. Habitus as in Fig. 13 E, F. Carapace yellowish, with a pair of curved median bands; sternum yellowish. Legs yellowish, without darker rings. Opisthosoma yellowish, with dorsal and lateral black spots. Thoracic furrow absent. Clypeus unmodified. Chelicerae (Fig. 13 D) with a pair of proximo-lateral apophyses and a pair of long, curved distal apophyses (distance between tips: 0.49). Palp as in Fig. 12 A, B; trochanter with ventral apophysis (as long as wide; arrow in Fig. 12 A) and small retrolateral apophysis (arrow 1 in Fig. 12 B); femur with distinct ventral protrusion (arrow 2 in Fig. 12 B); procursus simple proximally but complex distally, with narrow sclerite and teeth on prolatero-subdistal part (arrow 1 in Figs 12 C, 18 K), distal membranous process (arrow 2 in Figs 12 C, 18 K), and dorso-distal spine (arrow 3 in Figs 12 C, 18 K); bulb (Fig. 13 C) with hooked apophysis and simple embolus. Retrolateral trichobothria on tibia I at 7 % proximally; legs with short vertical setae on metatarsi; tarsus I with 16 distinct pseudosegments.

Female (paratype, IZCAS - Ar 44976): Similar to male, habitus as in Fig. 13 G, H. Total length 2.13 (2.21 with clypeus), carapace 0.68 long, 0.70 wide, opisthosoma 1.45 long, 1.00 wide; tibia I: 2.91; tibia I L / d: 36. Eye inter-distances and diameters: PME – PME 0.11, PME 0.07, PME – ALE 0.02, AME absent. Sternum width / length: 0.55 / 0.53. Epigyne (Figs 13 A, 21 C) simple and flat, anteriorly slightly sclerotized, with dark internal shade and a pair of postero-lateral pockets 0.46 apart. Vulva (Figs 13 B, 21 D) with ridge-shaped anterior arch, a pair of nearly triangular pore plates bearing distinct teeth, and four distinct median teeth (arrows in Figs 13 B, 21 D).

Variation.

Tibia I in the other three female paratypes (IZCAS - Ar 44977 –79): 2.25, 2.47, 2.55.

Habitat.

The species was found in the leaf litter.

Distribution.

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