Nesticella sumatrana, Lin, Yucheng, Ballarin, Francesco & Li, Shuqiang, 2016

Lin, Yucheng, Ballarin, Francesco & Li, Shuqiang, 2016, A survey of the spider family Nesticidae (Arachnida, Araneae) in Asia and Madagascar, with the description of forty-three new species, ZooKeys 627, pp. 1-168 : 54-56

Taxon classification Animalia Araneae Nesticidae

Nesticella sumatrana sp. n. Figs 67, 83

Type material.

Holotype ♂ (IZCAS), INDONESIA: West Sumatra Province, Payakumbuh City, Koto Tiggi Village, a cave without name, close to the Imam Bonjol Cave (00.06368°S, 100.34513°E, 962 m), 17.V.2014, Z. Yao leg.

Etymology.

The specific name is derived from the type locality; adjective.

Diagnosis.

Nesticella sumatrana sp. n. can be distinguished from Nesticella phami sp. n. (Figs 65 A–D, 66 A–B) by the lobed ventral apophysis of the paracymbium (Va), strongly reduced in the latter species (Fig. 67A vs. Fig. 65A), by the shorter distal process of the paracymbium (Dp) (Fig. 67B vs. Fig. 65B), by the smaller tegular apophysis (Tg) lacking a serrated boarder and by the membranous, translucent terminal apophysis (Ta) (Fig. 67A vs. Fig. 65A). Furthermore, the two species can be distinguished by the darker body color of Nesticella sumatrana sp. n. (Fig. 67 E–G vs. Fig. 66 A–B).

Description.

Habitus as in Fig. 67 E–G. Carapace very dark. Cervical groove distinct, fovea deep and black. Thoracic area dark. Mouthparts brown-yellowish. Sternum greyish, with sparse long setae. Legs yellowish, distally darker in each segment. Opisthosoma uniformly black, with a yellowish lanceolate mark on the dorsal side.

Male palp (Fig. 67 A–D): paracymbium relatively simple. Ventral apophysis lobed, distal process triangular (Fig. 67A, D), short, flat and squared, apically wrinkled (Fig. 67 A–B, D). Terminal apophysis membranous, triangular and laminar, located near the process of the conductor (Fig. 67A, D). Tegular apophysis laminar, weakly sclerotized and protruding outward (Fig. 67A, 67C). Conductor ending with a small, hook-shaped, sclerotized process (Fig. 67A, C–D).

Male (holotype). Total length 1.81. Carapace 0.92 long, 0.85 wide. Opisthosoma 0.96 long, 0.86 wide. Clypeus height 0.17. Sternum 0.56 long, 0.57 wide. Leg measurements: see Appendix A.

Female. Unknown.

Habitat.

Cave.

Distribution.

Known only from the type locality (Fig. 83).