Notiocoelotes membranaceus Liu & Li, 2010

Zhang, Xiaoqing, Zhao, Zhe, Zheng, Guo & Li, Shuqiang, 2016, A further study of the spider genus Notiocoelotes (Araneae, Agelenidae) from Hainan Island, China, ZooKeys 601, pp. 75-87 : 78-80

Taxon classification Animalia Araneae Agelenidae

Notiocoelotes membranaceus Liu & Li, 2010 Figs 3, 4, 7

Notiocoelotes membranaceus Liu & Li, 2010: 33, figs 2 A–C, 3 A–D (♂).

Type material.

Holotype ♂: China: Hainan: Qiongzhong County: Mt. Limushan Nature Reserve, 13 August 2007, S. Li, C. Wang, L. Lin & J. Xu leg.

Other material examined.

3♀3♂: China: Hainan: Qiongzhong County: Mt. Limushan Nature Reserve, Binlang Lake, N19°11'59", E109°43'45", 576 m, 4.XII.2015, X. Zhang & Z. Chen; 2♀, China: Hainan: Qiongzhong County: Mt. Limushan, N19°10'52", E109°45'19", 962 m, 2.V.2011, Y. Zhou.

Diagnosis.

The female of Notiocoelotes membranaceus can be distinguished from all the other Notiocoelotes , except Notiocoelotes orbiculatus , by the almost oval atrium. From Notiocoelotes orbiculatus , the new species can be distinguished by the egg-shaped receptacles (while Notiocoelotes orbiculatus has globular and widely separated receptacles) (cf. Fig. 4 A–B; Liu and Li 2010: fig. 7B).

Description.

Male: described in detail by Liu and Li (2010: fig. 2 A–C) (Fig. 3 A–C).

Female: Total length 4.75. Carapace 2.50 long, 1.75 wide. Abdomen 2.25 long, 1.75 wide. Eye sizes and interdistances: AME 0.08, ALE 0.15, PME 0.15, PLE 0.15; AME-AME 0.03, AME-ALE 0.01, PME-PME 0.05, PME-PLE 0.06. Leg measurements: I: 7.00 (2.05, 2.25, 1.60, 1.10); II: 6.10 (1.85, 1.90, 1.55, 0.80); III: 5.50 (1.70, 1.75, 1.30, 0.75); IV: 7.50 (2.25, 2.30, 2.00, 0.95). Carapace yellowish, with black dark lateral margins; sternum yellow, margins darker than median part. Abdomen yellowish-brown, with black and nearly chevrons-shaped stripes, nearly pineapple-shaped. Legs yellowish, with black annulations. Epigyne: atrium semicircular, about 1.5 times as long as wide, with distinct septum; epigynal scape wide; copulatory ducts long, about 0.9 times as long as receptacles, well sclerotized; receptacles long, about 1.5 times as long as wide; copulatory openings distinct (Fig. 4 A–B).

Distribution.

China (Hainan) (Fig. 7).

Remarks.

Female of this species is described for the first time. Although the shape of the palp and epigyne of Notiocoelotes membranaceus are a little different from those of the type species of the genus Notiocoelotes , the taxonomic placement of this species is supported by the following two features. First, according to the molecular data (our COI sequences, unpublished), Notiocoelotes membranaceus is closely related to Notiocoelotes orbiculatus and Notiocoelotes qiongzhongensis sp. n. Second, the male of Notiocoelotes membranaceus has a strongly bifurcated lateral tibial apophysis, characteristic for the males of all Notiocoelotes species; the female of Notiocoelotes membranaceus has a tongue-shaped epigynal scape, characteristic for the females of all Notiocoelotes species.