Hamus luzon, 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 : 8

Taxon classification Animalia Araneae Nesticidae

Hamus luzon sp. n. Figs 4, 81

Type material.

Holotype ♀ and paratype 1♀ (IZCAS), Philippines: Luzon Island, Mountain Province, in rainforest along the road from Bontoc to Gawana Village, leaf litter (17.06066°N, 121.05067°E, 1674 m), 26.V.2015, F. Ballarin & Y. Li leg.

Etymology.

The specific name is derived from the type locality, the island of Luzon in the Philippines; noun in apposition.

Diagnosis.

Females can be distinguished from those of Hamus bowoensis and Hamus cornutus sp. n. by the almost perfectly round spermathecae (S) and the shorter, narrower fertilization ducts (Fd) (Fig. 4 E–F). In the other two species, the shape of the spermathecae are more pyriform, and the fertilization ducts are longer and wider (see Fig. 2 F–G vs. Ballarin and Li 2015: 180, fig. 2 B–C with Fd reported as Id).

Description.

Habitus as in Fig. 4 A–C. Carapace yellow. Thoracic area with four long setae in the center. Mouthparts brown-yellowish. Sternum yellow. Legs uniformly yellow. Opisthosoma, grey-bluish.

Epigyne (Fig. 4 D–F): translucent (Fig. 4D). Spermathecae wide, strongly sclerotized, almost round and close to each other. (Fig. 4 E–F). Fertilization ducts short and narrow, connected to the base of the spermathecae and located in the front of the copulatory ducts. Together they form an upturned structure (Fig. 4 E–F). Copulatory ducts short, forming a coiled structure in the center (Fig. 4F).

Female (holotype). Total length 2.10. Carapace 0.95 long, 0.80 wide. Opisthosoma 1.34 long, 0.94 wide. Clypeus height 0.20. Sternum 0.57 long, 0.55 wide. Leg measurements: see Appendix A.

Male. Unknown.

Habitat.

Rainforest leaf litter.

Distribution.

Known only from the type locality (Fig. 81).