Pholcus worak sp. nov.

Figs 6, 8D

Material examined.

Holotype: South Korea • ♂; Chungcheongbuk-do, Jecheon-si, Hansu-myeon, Songgye-ri, Mt. Woraksan National Park; 36°51.7'N, 128°5.7'E, 295 m; 10 September 2019; S.T. Kim & S.Y. Lee leg.; NIBR ##NUHGIV0000000003 . Paratypes: South Korea • 4♂♂ and 5♀♀ same data as for holotype; NIBR #NUHGIV00000000032-40 .

Diagnosis.

Pholcus worak sp. nov. can be easily distinguished from the other species within the P. phungiformes species group by the combination of the following characters: male - embolus slender, conspicuously long, and straight (Fig. 6H, K); procursus with large and broadly swollen ventral knee, roundly depressed dorsodistal apophysis with pointed tip (numbered 1 in Fig. 6H-J), and long membranous ventrodistal apophysis with pointed tip (numbered 2 in Fig. 6H-J). Female - epigynum with a pair of sclerotized fried egg-shaped protuberances in median portion, pore plates elliptical, slanted, and far apart from each other in internal genitalia (Fig. 6G).

Description.

Male (holotype). Habitus as in Fig. 6A. Total length 5.17. Carapace: 1.72 long/1.75 wide. Eyes: AER 0.81, PER 0.86, ALE 0.20, AME 0.14, PLE 0.20, PME 0.18, ALE-PLE contiguous, ALE-AME 0.07, AME-AME 0.08, AME-PME 0.07, PME-PLE 0.05, PME-PME 0.31. Chelicera: 1.17 long/0.34 wide. Endite: 0.58 long/0.39 wide. Labium: 0.31 long/0.38 wide. Sternum: 0.87 long/1.15 wide. Legs: I 43.79 (11.03, 0.77, 11.22, 18.29, 2.48), II 29.24 (8.09, 0.59, 7.41, 11.69, 1.46), III 21.04 (6.12, 0.68, 5.10, 7.90, 1.24), IV 27.83 (8.11, 0.61, 6.97, 10.67, 1.47), tibia I L/d 58. Palp: 4.37 (0.80, 0.36, 1.31, -, 1.90). Abdomen: 3.45 long/1.52 wide.

Carapace pale yellowish brown, cephalic region with a pale blackish brown median band, thoracic region with pale blackish brown radial and marginal bands (Fig. 6A). Chelicera with three apophyses; blunt proximo-lateral apophysis protruding diagonally upward out of chelicera, small and blunt frontal apophysis protruding forward, and thick and pointed distal apophysis slightly protruding diagonally downward (Fig. 6C, D). Legs yellowish brown, retrolateral trichobothrium on tibia I at 5% proximally, tarsus I with 29 pseudosegments, femora, tibiae, and metatarsi with one or two pale blackish brown proximal and distal annuli, leg formula I-II-IV-III. Abdomen elliptical, turbid gray with a long cardiac pattern and many black irregular spots (Fig. 6A). Palp (Fig. 6H-K): trochanter with blunt and finger-like retrolatero-ventral apophysis, shorter than femur; palpal tibia with an eyebrow-shaped and rudimentary prolatero-ventral modification hidden by uncus; bulb pale yellowish brown, pocket-shaped, pseudo-appendix absent; uncus dark blackish brown and rectangular with a rounded edge having fine scales, edge finely serrated, pseudo-appendix absent; embolus slender and weakly sclerotized with some semitransparent fringed distal processes, conspicuously long and straight (Fig. 6H, K); procursus large and long, pale yellowish brown dorsally and brown with blackish brown margin ventrally, large ventral knee broadly swollen and smoothly curved, two distal apophyses present, dorsodistal apophysis roundly depressed with a pointed tip (numbered 1 in Fig. 6H-J) and membranous ventrodistal apophysis long with a pointed tip (numbered 2 in Fig. 6H-J), one thin and short with two short and spike like dorsal spines present on the round ridge (Fig. 8D).

Female (paratype). General appearance similar to male, habitus as in Fig. 6B. Total length 5.33. Carapace: 1.72 long/1.86 wide. Eyes: AER 0.75, PER 0.83, ALE 0.21, AME 0.14, PLE 0.20, PME 0.16, ALE-PLE contiguous, ALE-AME 0.04, AME-AME 0.07, AME-PME 0.09, PME-PLE 0.06, PME-PME 0.31. Chelicera: 1.08 long/0.34 wide. Endite: 0.56 long/0.32 wide. Labium: 0.33 long/0.39 wide. Sternum: 0.86 long/1.17 wide. Legs: I 39.33 (9.81, 0.70, 10.14, 16.42, 2.26), II 27.04 (7.34, 0.69, 6.91, 10.60, 1.50), III 19.96 (5.69, 0.64, 4.95, 7.51, 1.17), IV 27.20 (7.81, 0.66, 6.92, 10.29, 1.52), tibia I L/d 49. Palp: 1.62 (0.50, 0.21, 0.32, -, 0.59). Abdomen: 3.61 long/1.74 wide. Epigynum: 1.17 wide.

Legs yellowish brown, femora, tibiae, and metatarsi with one or two pale blackish brown proximal and distal annuli, leg formula I-IV≒II-III. Epigynum (Fig. 6E, F): sclerotized, anterior epigynal plate strongly protruding, anterior arch with median portion slightly curved, anterior epigynal plate and posterior epigynal plate far apart, both sides of median portion with a pair of sclerotized fried egg-shaped protuberances; small and short knob with a blunt tip. Internal genitalia (Fig. 6G): pore plates elliptical, slanted, and far apart from each other.

Variation.

Tibia I in four paratype males (NIBR #NUHGIV00000000032-35): 12.98 ± 0.76 (13.74, 12.48, 12.18, 13.50). Tibia I in other four paratype female (NIBR #NUHGIV00000000037-40): 9.91 ± 0.40 (10.04, 9.89, 9.38, 10.33).

Habitat.

Rock walls and under rocks in a mountainous mixed forest (Fig. 1E).

Distribution.

South Korea (Mt. Woraksan, Chungcheongbuk-do) (Fig. 1A).

Etymology.

The specific name is a noun in apposition referring to the type locality, Mt. Woraksan.