Belisana daxiangi Li, Zheng & Yao sp. nov.

Figs 4–5, 9C–D

Type material. Holotype: Male (SYNU-Ar00310), near Bubeng Village (21°36.827’N, 101°34.847’E, elevation 690 m), Mengla County, Xishuangbanna, Yunnan, China, 12 August 2012, Guo Zheng, Xue Li, and Wenyue Zhu leg.

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

Diagnosis. The new species resembles B. fengzheni sp. nov. (Figs 6– 7, 9E–F, 10C–D) having similar bulbal apophyses (Fig. 5A) and male chelicerae (Fig. 5B), but it can be distinguished by prolatero-distal membranous lamella of procursus with weakly sclerotized lamella (arrow 1 in Figs 4C, 9C; vs. absent in B. fengzheni sp. nov.), by procursus with two spine-shaped dorso-distal apophyses (arrows 2, 3 in Figs 4C, 9C; vs. only one apophysis in B. fengzheni sp. nov.), and by procursus with ventral membranous lamella (arrow 4 in Figs 4C, 9C; vs. absent in B. fengzheni sp. nov.).

Description. Male (holotype, SYNU-Ar00310): Total length 1.58 (1.66 with clypeus), prosoma 0.57 long, 0.55 wide, opisthosoma 1.01 long, 0.53 wide. Legs I and II missing, leg III: 5.05 (1.37 + 0.19 + 1.23 + 1.74 + 0.52), leg IV: – (2.30 + 0.20 + 2.06 + – + –). Eye interdistances and diameters: PME-PME 0.14, PME 0.06, PME-ALE 0.03, AME absent. Sternum width/length: 0.45/0.45. Habitus as in Figs 5C–E. Dorsal shield of prosoma and sternum whitish, without marks. Legs whitish, without darker rings. Opisthosoma whitish, without spots. Thoracic furrow absent. Clypeus unmodified. Chelicerae (Fig. 5B) with pair of proximo-lateral apophyses and pair of curved distal apophyses (distance between tips: 0.29). Pedipalp as in Figs 4A–B; trochanter as long as wide; femur with retrolatero-proximal apophysis (arrow in Fig. 4B); procursus (Figs 4A–D, 9C–D) simple proximally but complex distally, with prolatero-distal membranous lamella with weakly sclerotized lamella (arrow 1 in Figs 4C, 9C), two spine-shaped dorso-distal apophyses (arrows 2, 3 in Figs 4C, 9C), ventral membranous lamella (arrow 4 in Figs 4C, 9C), retrolatero-distal membranous lamella (arrow in Figs 4D, 9D), and retrolatero-subdistal membranous flap (f in Figs 4D, 9D); bulb (Fig. 5A) with hooked apophysis and simple embolus. Legs with short vertical setae on metatarsi.

Female: Unknown.

Natural history. The species was collected in a seasonal rainforest by canopy fogging.

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