Pholcus schawalleri, Yao, Zhiyuan, Li, Shuqiang & Jäger, Peter, 2014

Yao, Zhiyuan, Li, Shuqiang & Jäger, Peter, 2014, Four new species of pholcine spiders (Araneae: Pholcidae) from Southeast Asia, Zootaxa 3793 (3), pp. 331-349 : 340-344

Pholcus schawalleri spec. nov.

Figs 30–43

Type material. PHILIPPINES: Leyte: holotype male, Visca, N. of Baybay, 10°39′N, 124°51′E, alt. 200–500 m, primary forest, 22 February 1991, W. Schawaller et al. ( SMF). Paratype: 1 male, same data as holotype ( SMF).

Etymology. The specific name is a patronym in honour of the collector Wolfgang Schawaller; noun (name) in genitive case.

Diagnosis. Pholcus schawalleri spec. nov. resembles P. arayat Huber, 2011 (see Huber 2011a, figs 1514–1515, 1541–1542, 1574–1578) and P. pagbilao Huber, 2011 (see Huber 2011a, figs 1516–1521, 1543–1544, 1579–1584) in the shape of the male chelicerae and appendix, but can be distinguished by the short pedipalpal trochanter ( Figs 30–31 , 40–41 ; pedipalpal trochanter relatively long and with a slender subdistal apophysis in P. arayat and with a small, proximal median protuberance in P. pagbilao ); and by the different shapes of the distal sclerites of the procursus ( Figs 30–33 , 40–41 ). This species can be further distinguished from P. arayat by the wide uncus ( Figs 30 , 40 ; uncus narrow in P. arayat ).

Description. Male (holotype): Total length 7.75 (7.89 with clypeus), prosoma 1.30 long, 1.37 wide, opisthosoma 6.45 long, 0.96 wide. Leg I: 51.93 (12.31 + 0.71 + 12.12 + 23.91 + 2.88), leg II: 33.20 (8.78 + 0.58 + 8.08 + 13.97 + 1.79), leg III: 21.15 (6.28 + 0.55 + 5.13 + 8.01 + 1.18), leg IV: 30.96 (8.97 + 0.64 + 7.44 + 12.18 + 1.73); tibia I L/d: 73. Habitus as in Figs 37–39 . Dorsal shield of prosoma and sternum yellowish. Legs light brown, but yellowish on distal parts of femora and tibiae, without darker rings. Opisthosoma grey, with distinctive brown pattern dorsally and ventrally. Distance PME-PME 0.33, diameter PME 0.17, distance PME-ALE 0.04, distance AME-AME 0.08, diameter AME 0.08. Ocular area ( Figs 35–36 ) elevated, with a median elevation carrying dense brushes of hairs; each eye triad on top of a relatively short eye-stalk, the latter laterad. Thoracic furrow absent. Sternum wider than long (0.99/0.89). Chelicerae as in Figs 34 , 42–43 , with a pair of black distal apophyses provided with two modified hairs each, a pair of thumb-shaped proximo-lateral apophyses, and a pair of nippleshaped frontal apophyses. Pedipalp as in Figs 30–31 , 40–41 ; trochanter with a short retrolateral apophysis; femur with a slender retrolateral apophysis (arrow in Figs 31 , 41 ) and a distinct ventral modification; procursus strongly bent, simple proximally but complex distally, with a slender, membranous subdistal apophysis (arrow in Figs 30 , 40 ); uncus large and flat, with a scaly edge; appendix pointed distally, retrolaterad; embolus weakly sclerotized. Retrolateral trichobothrium of tibia I at 5% of length; most hairs missing on legs; tarsus I with more than 30 distinct pseudosegments.

Female: Unknown.

Distribution. Known only from the type locality ( Fig. 57 ).

Figures

FIGURE 57. Known distribution records of four new pholcine species from Southeast Asia. 1, Belisana protumida spec. nov.; 2, Khorata bayeri spec. nov.; 3, Pholcus schawalleri spec. nov.; 4, Uthina khaosokensis spec. nov.

FIGURES 30 – 33. Pholcus schawalleri spec. nov., holotype male. 30 – 31 Pedipalp (30 prolateral view, arrow points at a slender membranous apophysis on procursus; 31 retrolateral view, arrow points at a slender apophysis on pedipalpal femur); 32 – 33 Distal part of procursus (32 prolateral view, 33 retrolateral view). a = appendix, b = bulb, e = embolus, pr = procursus, u = uncus.

FIGURES 34 – 39. Pholcus schawalleri spec. nov., holotype male. 34 Chelicerae, frontal view; 35 – 36 Ocular area (35 dorsal view, 36 lateral view); 37 – 39 Habitus (37 dorsal view, 38 ventral view, 39 lateral view). da = distal apophysis, fa = frontal apophysis, pa = proximo-lateral apophysis.

FIGURES 40 – 43. Pholcus schawalleri spec. nov., holotype male. 40 – 41 Pedipalp (40 prolateral view, arrow points at a slender membranous apophysis on procursus; 41 retrolateral view, arrow points at a slender apophysis on pedipalpal femur); 42 – 43 Chelicerae (42 frontal view, 43 lateral view). a = appendix, b = bulb, da = distal apophysis, e = embolus, fa = frontal apophysis, pa = proximo-lateral apophysis, pr = procursus, u = uncus.