Sinoderces dewaroopensis Li & Li

Bai, Zilong, Li, Fengyuan & Li, Shuqiang, 2019, Ten new species of the spider genus Sinoderces Li & Li, 2017 from China, Laos and Thailand (Araneae, Psilodercidae), ZooKeys 886, pp. 79-111 : 79

publication ID	https://dx.doi.org/10.3897/zookeys.886.39212
publication LSID	lsid:zoobank.org:pub:FF4F3062-D283-4B5D-80C3-AEFC6361CE39
persistent identifier	https://treatment.plazi.org/id/D81C6B52-D934-5580-812B-BEEF4341355C
treatment provided by	ZooKeys by Pensoft
scientific name	Sinoderces dewaroopensis Li & Li
status	sp. nov.

Treatment

Sinoderces dewaroopensis Li & Li sp. nov. Figs 7 View Figure 7 , 8 View Figure 8 , 21 View Figure 21 , 22 View Figure 22

Types.

Holotype: ♂, Dewaroop Cave 1, Pak Chong Distict, Musee Village, Nakhon Ratchasima Province, Thailand, 14°33.708'N, 101°24.064'E, 397 m, 23.X.2014, Zhao H., Li Y. and Chen Z. leg. Paratype: 1♀, same data as holotype.

Etymology.

The specific name refers to the name of the cave; adjective.

Diagnosis.

Sinoderces dewaroopensis sp. nov. can be distinguished from all other known species of the genus by the large apical protrusion on the cymbium ( Fig. 7 View Figure 7 ) and a characteristically lamellar embolus. Females can be distinguished by one pair of spherical spermathecae ( Fig. 8A View Figure 8 )

Description.

Male (holotype). Total length 1.44; carapace 0.76 long, 1.69 wide; abdomen 1.06 long, 0.54 wide. Carapace round, pale yellow. The overall color is light yellow ( Fig. 8E View Figure 8 ). Cheliceral promargin with one tooth, connected to a lamina; retromargin with one small tooth ( Fig. 21D View Figure 21 ). Clypeus light brown ( Fig. 8E View Figure 8 ). Labium and sternum almost transparent. Legs light yellow, with dark yellow joints. Legs measurements: I 11.03 (3.20, 0.31, 3.28, 3.16, 1.08), II 11.03 (3.08, 0.31, 3.36, 3.20, 1.08), III 11.63 (3.32, 0.31, 3.72, 3.20, 1.08), IV8.07 (2.28, 0.31, 2.44, 2.20, 0.84). Abdomen elongated, with pale yellow ( Fig. 8E View Figure 8 ). Spinnerets pale yellow.

Male palp ( Fig. 7 A–D View Figure 7 ): Bulb pale yellow, conical. Embolus arising distally from the bulb, slightly curved; no conductor; tibia with a stout apical protrusion, tipped with many bristles ( Fig. 7A View Figure 7 ). Femur and trochanter light yellow with few hairs.

Female (one of the paratypes). Size and color similar to male, but slightly larger and darker ( Fig. 8C, D View Figure 8 ). Total length 1.55; carapace 0.55 long, 0.65 wide; abdomen 1.00 long, 0.55 wide. Carapace round, yellow. Clypeus brown ( Fig. 8C View Figure 8 ). Labium and sternum yellow. Legs light yellow, the joint is dark. Leg measurements: I 9.14 (2.48, 0.25, 2.72, 2.53, 1.16) II 7.06 (1.88, 0.25, 2.05, 1.98, 0.90) III 5.71 (1.53, 0.25, 1.65, 1.50, 0.78), IV 7.81 (2.18, 0.25, 2.33, 2.00, 1.05,). Abdomen elongated, dorsum with black spots and wrinkles, ventrum darkens posteriorly ( Fig. 8C View Figure 8 ). Spinnerets yellow.

Epigyne ( Fig. 8A, B View Figure 8 ): Some bristles on the epigynum ( Fig. 8B View Figure 8 ). It has one pair of global spermathecae ( Fig. 8A View Figure 8 ).

Distribution.

Known only from the type locality ( Fig. 22 View Figure 22 ).

Natural history.

Collected at a cave entrance at an elevation of 397 m.