Pholcus hinsonensis Yao & Li, sp. nov.
Creators: name: Dong, Tingting
name: Zheng, Guo
name: Yao, Zhiyuan
name: Li, Shuqiang
Publisher: name: Zenodo
Year: 2016
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Arachnida
Araneae
Pholcidae
Pholcus
Pholcus hinsonensis

description: Pholcus hinsonensis Yao & Li sp. nov.
Figs 1–2, 31 C–D
Type material. Holotype: male, Tham (cave) Yan Sang Won (14°44.928′N, 101°01.740′E, elevation 130 m), Hin Son Village, Kaeng Koi District, Saraburi, Thailand, 19 October 2014, H. Zhao, Y. Li and Z. Chen leg. Paratypes: 2 females, same data as holotype.
Etymology. The specific name refers to the type locality; adjective.
Diagnosis. This species resembles P. tharnlodensis sp. nov. (Figs 3–4) in having a similar procursus (Figs 1 A– D) and female genitalia (Fig. 2 A) but can be distinguished by short eye-stalks on the male ocular area (Fig. 31 C), by the presence of frontal and distal apophyses on the male chelicerae (Fig. 2 D), by the presence of a pointed apophysis distally on the uncus (Fig. 2 C), and by the absence of hooks distally on the appendix (Fig. 2 C).
Description. Male (holotype): Total length 5.51 (5.93 with clypeus), carapace 1.28 long, 1.36 wide, opisthosoma 4.23 long, 1.39 wide. Leg I: – (11.85 + 0.64 + 11.67 + – + –), leg II: 31.02 (8.40 + 0.63 + 7.76 +13.14 + 1.09), leg III: 20.32 (6.09 + 0.56 + 4.81 + 7.95 + 0.91), leg IV: 26.26 (8.14 + 0.58 + 6.54 + 10.06 + 0.94); tibia I L/d: 93. Distance PME-PME 0.34; diameter PME 0.12; distance PME-ALE 0.05; distance AME-AME 0.03; diameter AME 0.08. Sternum wider than long (0.89/0.67). Habitus as in Figs 2 E–F. Carapace yellowish, with brown marks posteriorly and marginally; ocular area yellowish; sternum yellowish, with radiating marks. Legs yellowish, patellae, distal parts of femora and tibiae, and proximal parts of metatarsus dark brown, subdistal parts of femora and tibiae whitish, darker rings absent. Opisthosoma yellowish, with brown spots dorsally. Ocular area elevated; each eye triad on top of a short, laterally directed eye-stalk, with small median projection between PME (Fig. 31 C). Thoracic furrow absent. Chelicerae as in Fig. 2 D, with a pair of proximo-lateral apophyses, a pair of black distal apophyses, each with two teeth, and a pair of inconspicuous frontal apophyses. Pedipalps as in Figs 1 A–B; trochanter with a long ventral apophysis; femur with a dorsal apophysis proximally; procursus simple, presence of a ventral membranous process and a prolatero-dorsal spine (arrow in Fig. 1 A); uncus with scales; appendix broad and with scales; embolus weakly sclerotized. Retrolateral trichobothrium of tibia I at 6.5%; legs with short vertical setae on tibiae, metatarsi and tarsi; without spines and curved setae.
Female: Similar to male, habitus as in Figs 2 G–H. Total length 6.05 (6.15 with clypeus), carapace 1.50 long, 1.66 wide, opisthosoma 4.55 long, 1.32 wide; tibia I: 10.90; tibia I L/d: 63. Distance PME-PME 0.26; diameter PME 0.12; distance PME-ALE 0.05; distance AME-AME 0.05; diameter AME 0.08. Sternum wider than long (0.98/0.78). Ocular area without eye-stalks and median projections between PME (Fig. 31 D). External genitalia (Fig. 2 A) with a small knob. Vulva (Fig. 2 B) with a sclerotized anterior arch and two oval pore plates.
Distribution. Thailand (Saraburi, type locality; Fig. 32).
Natural history. The species was found in the entrance zone of the cave.
description: Published as part of Dong, Tingting, Zheng, Guo, Yao, Zhiyuan & Li, Shuqiang, 2016, Fifteen new species of the spider genus Pholcus (Araneae: Pholcidae) from Southeast Asia, pp. 201-246 in Zootaxa 4136 (2) on page 203, DOI: 10.11646/zootaxa.4136.2.1, http://zenodo.org/record/260704