Pholcoides erebus Lin & Li, 2022

Lin, Yejie, Zhao, Huifeng, Koh, Joseph K H & Li, Shuqiang, 2022, Taxonomy notes on twenty-eight spider species (Arachnida: Araneae) from Asia, Zoological Systematics 47 (3), pp. 198-270 : 212

Pholcoides erebus Lin & Li , sp. nov. ( Figs 10–11 )

Diagnosis. The male is similar to that of Sahastata sinuspersica Marusik, Zamani & Mirshamsi, 2014 , but the new species has a V-shaped notch on distal tip of cymbium, and the tibia is three times longer than the cymbium, while four times longer in S. sinuspersica .

Description. Male (holotype, Fig. 11 ) total length 6.82. Carapace 2.87 long, 2.90 wide; abdomen 4.27 long, 1.87 wide. Carapace almost round, white. Eye area black, black longitudinal stripe from eye area to fovea. Some long setae in the stripe. Eye sizes and interdistances: AME 0.09, ALE 0.17, PME 0.11, PLE 0.14, AME–AME 0.05, AME–ALE 0.04, PME–PME 0.14, PME–PLE 0.03. AME–PME 0.02. ALE–PLE 0.03. Clypeus height 0.07. Endites yellow, base gradually lighter, conspicuously longer than wide. Labium fused with sternum, yellow, darker anteriorly. Legs yellow-brown, with plumose setae. I 14.02 (3.29, 4.83, 3.79, 2.11); II 11.22 (2.73, 3.96, 3.22, 1.31); III 9.00 (2.40, 2.86, 2.54, 1.20); IV 13.17 (3.14, 4.20, 4.32, 1.51). Leg formula 1423. Abdomen almost cylindrical, widest at middle. Dorsum black-brown with many long, brown hairs, five pairs white spots. Cardiac mark white, sparse setae.

Palp ( Fig. 10 ) simple. Tibia length almost equal to that of femur, three times longer than cymbium. End of cymbium present an apophysis with a long seta. Bulb simple, coiling almost twice. Base hidden in cymbium, thus only one sperm duct coil visible. Embolus long, with bifurcated end.

Material examined. Holotype ♂ (IZCAS-Ar43254), China: Tibet, Qamdo City , Markam County, Qucainka Village (29.0942°N, 98.6083°E, elev. 2320 m), 8 May 2021, Y. Lin & J. Liu leg.

Distribution. Known only from the type locality.

Etymology. The specific name comes from the Greek god “ Erebus ”, because the color of this new species is dark; noun.

Figures

Figure 10. Pholcoides erebus Lin & Li, sp. nov., holotype male, left palp. A. Prolateral view; B. Ventral view; C. Retrolateral view. Scale bars=0.3mm.

Figure 11. Pholcoides erebus Lin & Li, sp. nov., holotype male, habitus.A. Dorsal view; B. Lateral view. Scale bars=1.0mm.