Psiloderces wangou Li & Chang, 2020

Chang, Wan-Jin & Li, Shuqiang, 2020, Fourteen new species of the spider genus Psiloderces Simon, 1892 from Southeast Asia (Araneae, Psilodercidae), ZooKeys 902, pp. 61-105 : 61

publication ID	https://dx.doi.org/10.3897/zookeys.902.38967
publication LSID	lsid:zoobank.org:pub:2DB04880-0FB8-48BF-AAF3-5EC2176F8D6E
persistent identifier	https://treatment.plazi.org/id/696D6C23-F5FC-496D-95BB-30BA6F6EBAEC
taxon LSID	lsid:zoobank.org:act:696D6C23-F5FC-496D-95BB-30BA6F6EBAEC
treatment provided by	ZooKeys by Pensoft
scientific name	Psiloderces wangou Li & Chang
status	sp. nov.

Treatment

Psiloderces wangou Li & Chang sp. nov. Figs 24 View Figure 24 , 25 View Figure 25 , 28B View Figure 28 , 30 View Figure 30

Types.

Holotype: ♂ (IZCAS), Indonesia, South Sulawesi, Maros, Cenrana Village, East of Maros Water Park, 5°3.2573'S, 119°44.3747'E, 229 m, 24.VII.2014, Y. Li. Paratype: 1♀ (IZCAS), same data as holotype.

Etymology.

The species name is a noun in apposition derived from the Chinese pinyin “wāngōu” (hook) and refers to the hook-shaped embolus.

Diagnosis.

Males of P. wangou sp. nov. resemble those of P. malinoensis sp. nov. but can be distinguished by the relatively long, protruding, bent embolus (vs. relatively short and embedded embolus in P. malinoensis sp. nov.); females can be distinguished by the enclosed spermathecae (vs. ribbon-like spermathecae with 3 branches).

Description.

Male (Holotype). Total length 1.30; carapace 0.50 long, 0.56 wide; abdomen 0.80 long, 0.50 wide. Carapace round and brown, with 3 longitudinal dark brown bands, median band half length of carapace, lateral bands 2 times wider than median band (Fig. 24C View Figure 24 ). Chelicerae brown, promargin with lamina bearing 2 triangular extensions (Fig. 28B View Figure 28 ). Clypeus dark brown. Endites dark brown, light brown basally. Labium dark brown with pair of light brown circular dots. Sternum dark brown, with light brown median stripe. Abdomen elongated, dorsum with dark brown stripes concentrated posteriorly, antero-ventrally dark brown with elliptical patch, posterior with pair of lateral light brown longitudinal lines. Legs uniformly brown; measurements: I 8.13 (2.19, 0.16, 2.50, 2.19, 1.09), II missing, III 5.04 (1.25, 0.20, 1.25, 1.71, 0.63), IV 6.55 (1.75, 0.20, 2.00, 1.70, 0.90). Palp (Fig. 25A-D View Figure 25 ): femur slender, 3 times longer than patella; patella not swollen; tibia 2 times shorter than femur; cymbium 1.5 times shorter than femur, protrusion darkens distally; bulb pale brown, pyriform, with embolus arising apically; embolus protruded and slightly bent at tip, resembling a hook, almost 4 times thinner than width of tegulum, length of embolus 2.5 times shorter than tegulum (Fig. 25B View Figure 25 ).

Female (Paratype). General features and coloration similar to those of male (Fig. 24D, E View Figure 24 ). Measurements: total length 1.50; carapace 0.50 long, 0.63 wide; abdomen 1.00 long, 0.75 wide. Leg measurements: I 6.33 (1.63, 0.20, 2.00, 1.60, 0.90), II missing, III missing, IV 4.90 (1.50, 0.20, 1.70, 0.94, 0.56). Endogyne (Fig. 24A View Figure 24 ): enclosed spermathecae formed by a horizontal posterior part, and pair of anterior part slanted at 45°, resembling a clothes hanger (Fig. 24A View Figure 24 ).

Distribution.

Known only from the type locality (Fig. 30 View Figure 30 ).