Belisana khanensis Yao & Li, 2013, sp. nov.

Belisana khanensis sp. nov.

Figs 10–12, 41

Type material. Holotype: Male (IZCAS), Khan Cave [18°55.592′N, 102°23.718′E, alt. 270 m], 5.35 km west of Vieng keo Village, Vang Vieng District, Vien Tiane, Laos, 1 December 2012, leg. Z. Yao (Yao-LA 076–078). Paratype: 1 female (IZCAS), same data as holotype.

Etymology. The specific name refers to the type locality; adjective.

Diagnosis. The species resembles B. sepaku (Huber 2005a: 74, figs 432–436 and 444–448), but can be distinguished by absence of eyes (Figs 11 E–F), protruding posterior of epigynum (Figs 11 A and 12D), absence of transversal grooves on pockets (Figs 11 A–B and 12D–E) and different position of pockets (Figs 11 A–B and 12D– E).

Description. Male (holotype): Total length 1.34 (1.40 with clypeus), prosoma 0.52 long, 0.58 wide, opisthosoma 0.82 long, 0.55 wide. Leg I: 14.28 (3.35 + 0.31 + 3.48 + 5.64 + 1.50), leg II: 11.00 (2.76 + 0.29 + 2.69 + 4.19 + 1.07), leg III: 7.96 (2.10 + 0.26 + 1.94 + 2.91 + 0.75), leg IV: 10.04 (2.75 + 0.28 + 2.50 + 3.75 + 0.76); tibia I L/d: 58. Habitus as in Fig. 11 E. Dorsal shield of prosoma and sternum whitish, without marks. Legs yellowish, but dark brown on patellae and tibia-metatarsus joints, without darker rings. Opisthosoma yellowish, without spots. Eyes absent. Ocular area not elevated. Thoracic furrow absent. Sternum about as wide as long (0.43). Chelicerae as in Figs 11 D and 12C, with a pair of thumb-shaped apophyses proximally and a pair of short, pointed apophyses distally (distance between tips: 0.08). Pedipalpi as in Figs 10 A–B and 12A–B; trochanter with a short retrolatero-ventral apophysis; femur with a dorsal apophysis; procursus simple proximally but complex distally, with a membranous flap retrolaterally and a bent spine; bulb with a hooked apophysis and a simple embolus. Retrolateral trichobothrium of tibia I at 15%; legs with short vertical hairs on metatarsi, without spines and curved hairs; tarsus I with about 11 distinct pseudosegments.

Variation: Unknown.

Female: Similar to male, habitus as in Figs 11 F–G. Total length 1.68 (1.76 with clypeus), prosoma 0.60 long, 0.63 wide, opisthosoma 1.08 long, 0.79 wide; tibia I: 3.72. Eyes absent. Epigynum (Figs 11 A and 12D) simple, with a pair of pockets 6 Μm apart. Vulva (Figs 11 B and 12E) with a ridge-shaped arch anteriorly and a pair of long, narrow pore plates.

Distribution. Known only from the type locality (Fig. 41).