Pholcus duan Yao & Li, 2017
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publication ID |
https://doi.org/ 10.11646/zootaxa.4306.3.3 |
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publication LSID |
lsid:zoobank.org:pub:65F64B80-9766-4AC4-AA6E-6D84014F5E63 |
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DOI |
https://doi.org/10.5281/zenodo.5328529 |
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persistent identifier |
https://treatment.plazi.org/id/CD7487FD-FFF3-FFDF-10EA-FC60FBD8FF63 |
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treatment provided by |
Plazi |
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scientific name |
Pholcus duan Yao & Li |
| status |
sp. nov. |
Pholcus duan Yao & Li View in CoL sp. nov.
Figs 3–4 View FIGURE 3 View FIGURE 4
Type material. Holotype: male (Ar29662), Kuha Sawan Cave (7°37.205′N, 100°04.905′E, elevation 15 m), Mueang District , Rattalung, Thailand, 27 October 2015, Q. Zhao, G. Zhou and Z. Chen leg. Paratypes: 2 females (Ar 29663–29664), same data as holotype. GoogleMaps
Etymology. The specific name is a Chinese pinyin word for short ( duǎn ), in reference to the short procursus; adjective.
Diagnosis. The species can be easily distinguished from all known congeners in the P. bidentatus species group by the very short and simple procursus ( Figs 3 View FIGURE 3 A–D), by the T-shaped appendix ( Fig. 4 View FIGURE 4 C) and by the large, proximally sclerotized embolus ( Fig. 4 View FIGURE 4 C).
Description. Male (holotype): Total length 5.31 (5.58 with clypeus), carapace 1.60 long, 1.80 wide, opisthosoma 3.76 long, 1.13 wide. Leg I missing, leg II: 37.74 (9.94 + 0.75 + 9.55 + 15.71 + 1.79), leg III: 26.72 (7.69 + 0.75 + 6.60 + 10.38 + 1.30), leg IV: 34.08 (9.62 + 0.80 + 8.46 + 13.53 + 1.67). Distance PME-PME 0.66; diameter PME 0.11; distance PME-ALE 0.04; distance AME-AME 0.06; diameter AME 0.06. Sternum wider than long (1.10/0.90). Habitus as in Figs 4 View FIGURE 4 E–F. Carapace yellowish, with brown marks medially; ocular area brownish, with a brown median band; sternum brown. Legs brownish, distal parts of femur and tibiae, and proximal part of metatarsi yellowish, darker rings absent. Opisthosoma yellowish, with brown spots posteriorly. Ocular area elevated; each eye triad on top of a long, laterally directed eye-stalk. Thoracic furrow absent. Chelicerae as in Fig. 3 View FIGURE 3 D, with a pair of proximo-lateral apophyses, distal apophyses absent. Pedipalps as in Figs 3 View FIGURE 3 A–B; trochanter with a short ventral apophysis; femur with a dorsal apophysis proximally (arrow in Fig. 3 View FIGURE 3 B) and a distinct ventral hump; procursus short and simple; bulbal apophyses as in Fig. 4 View FIGURE 4 C; uncus small; appendix T-shaped in prolateral view; embolus large, sclerotized proximally. Legs with short vertical setae on tibiae, metatarsi and tarsi; without spines and curved setae.
Female: Similar to male, habitus as in Figs 4 View FIGURE 4 G–H. Total length 5.86 (6.28 with clypeus), carapace 1.50 long, 1.78 wide, opisthosoma 4.36 long, 1.92 wide; Leg I: 52.11 (12.43 + 0.74 + 12.82 + 24.09 + 2.03); tibia I L/d: 73. Distance PME-PME 0.26; diameter PME 0.12; distance PME-ALE 0.05; distance AME-AME 0.05; diameter AME 0.06. Sternum wider than long (1.09/0.94). Ocular area without eye-stalks. Epigynum ( Fig. 4 View FIGURE 4 A) with a broad knob. Vulva ( Fig. 4 View FIGURE 4 B) with a sclerotized anterior arch and two rounded pore plates. Retrolateral trichobothrium of tibia I at 6%; legs with short vertical setae on tibiae, metatarsi and tarsi; without spines and curved setae; tarsus I with 7 distinct pseudosegments.
Variation: Tibia I in another female paratype: 13.52.
Distribution. Thailand (Rattalung, type locality; Fig. 21 View FIGURE 21 ).
Natural History. The species was found in the aphotic zone inside the cave.
No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.