Belisana martensi sp. nov.

Figs 16–18, 41

Type material. Holotype: Male (SMF), by hand, at night, vegetation, leaf litter, coffee plantation and primary forest, plateau, Tad Fane [15°11.050′N, 106°07.615′E, alt. 952 m], Ban Lak 38, Muang Bachieng, Champasak, Laos, 12 March 2010, leg. P. Jäger and J. Martens.

Etymology. The specific name is a patronym in honor of the collector J. Martens; noun.

Diagnosis. The species can be easily distinguished from all known congeners by different shape of male chelicerae (Figs 17 B and 18C) and different distal elements of procursus (Figs 16 A–D and 18A–B).

Description. Male (holotype): Total length 1.94 (2.03 with clypeus), prosoma 0.64 long, 0.73 wide, opisthosoma 1.30 long, 0.61 wide. Leg I: 17.59 (4.25 + 0.33 + 4.35 + 7.10 + 1.56), leg II: 11.76 (3.06 + 0.31 + 2.91 + 4.45 + 1.03), leg III: 7.50 (2.16 + 0.25 + 1.84 + 2.59 + 0.66), leg IV: 10.52 (2.97 + 0.28 + 2.69 + 3.80 + 0.78); tibia I L/d: 58. Habitus as in Figs 17 C–E. Dorsal shield of prosoma yellowish, with brown lateral margins; sternum yellowish, without marks. Legs yellowish, but dark brown on patellae and tibia-metatarsus joints, without darker rings. Opisthosoma yellowish, without spots. Distance PME-PME 0.14, diameter PME 0.08, distance PME-ALE 0.02, AME absent. Ocular area not elevated. Thoracic furrow absent. Sternum wider than long (0.53/0.49). Chelicerae as in Figs 17 B and 18C, with a pair of thumb-shaped apophyses proximally and a pair of short, pointed apophyses distally (distance between tips: 0.15). Pedipalpi as in Figs 16 A–B and 18A–B; trochanter with a short retrolatero-ventral apophysis; femur with a dorsal apophysis; procursus simple proximally but complex distally, with a stick-shaped apophysis, a bent spine and a triangular, membranous flap retrolaterally; bulb with a hooked apophysis and a simple embolus. Retrolateral trichobothrium of tibia I at 13%; legs with short vertical hairs on metatarsi, without spines and curved hairs; tarsus I with about 15 distinct pseudosegments.

Variation: Unknown.

Female: Unknown.

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