Pholcus jingnan Yao & Li, 2020
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publication ID |
https://doi.org/ 10.11646/zootaxa.4758.2.9 |
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publication LSID |
lsid:zoobank.org:pub:ED725D3E-2BA9-4818-A655-FB666EFB60E1 |
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DOI |
https://doi.org/10.5281/zenodo.3812245 |
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persistent identifier |
https://treatment.plazi.org/id/03D30000-FD55-FFBC-FF15-FDBC22BFFE40 |
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treatment provided by |
Plazi |
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scientific name |
Pholcus jingnan Yao & Li |
| status |
sp. nov. |
Pholcus jingnan Yao & Li View in CoL sp. nov.
Figs 1–2 View FIGURE 1 View FIGURE 2
Type material. Holotype: male (IZCAS-Ar39788), Feilong Cave (24°58’13.86”N, 104°52’54.00”E, elevation 1382 m), Jingnan Town, Xingyi, Guizhou, China, 15 April 2018, Z. Chen and J. Liu leg. GoogleMaps Paratypes: 1 male (IZ- CAS-Ar39789) and 2 females (IZCAS-Ar39790–Ar39791), same data as holotype GoogleMaps .
Etymology. The specific name refers to the type locality, and is a noun in apposition.
Diagnosis. This species resembles P. xingyi Chen, Zhang & Zhu, 2011 (see Chen et al. 2011: 57, figs 23–29) with similar male chelicerae ( Fig. 2D View FIGURE 2 ) and uncus ( Fig. 2C View FIGURE 2 ) but can be distinguished by large, nearly trapezoid distal apophysis dorsally on procursus (arrow in Fig. 1D View FIGURE 1 ; small, nearly triangular in P. xingyi ) and by presence of distinct angular apophysis medially on appendix (arrow in Fig. 2C View FIGURE 2 ; absence in P. xingyi ). The females may be distinguished by having epigynum that is not protruding ( Fig. 2A View FIGURE 2 ; epigynum strongly protruding posteriorly in P. xingyi ) and by having sclerite of vulval anterior arch that is not strongly protruding laterally (arrows in Fig. 2B View FIGURE 2 ; sclerite strongly protruding laterally in P. xingyi ).
Description. Male (holotype, IZCAS-Ar39788): Total length 4.36 (4.55 with clypeus), carapace 1.28 long, 1.38 wide, opisthosoma 3.08 long, 1.42 wide. Leg I: 44.24 (10.77 + 0.66 + 10.70 + 19.61 + 2.50), leg II: 27.82 (7.37 + 0.63 + 6.67 + 11.61 + 1.54), leg III: 20.10 (5.71 + 0.62 + 4.62 + 7.81 + 1.34), leg IV: 25.81 (7.31 + 0.62 + 6.09 + 10.32 + 1.47); tibia I L/d: 56. Distance PME-PME 0.53, diameter PME 0.16, distance PME-ALE 0.03, distance AME-AME 0.08, diameter AME 0.05. Sternum wider than long (1.02/0.82). Habitus as in Figs 2 View FIGURE 2 E–F. Carapace yellowish, with brown marks medially; ocular area brownish; clypeus and sternum brown. Legs yellowish, but whitish on distal parts of femora and tibiae, with slightly darker rings on subproximal and subdistal parts of femora and proximal and subdistal parts of tibiae. Opisthosoma yellowish, with spots dorsally and laterally. Ocular area elevated, each eye triad on top of long laterally directed eye-stalk. Thoracic furrow absent. Chelicerae as in Fig. 2D View FIGURE 2 , with pair of proximo-lateral apophyses, pair of distal apophyses and pair of frontal apophyses. Pedipalps as in Figs 1 View FIGURE 1 A–B; trochanter with short ventral apophysis; femur with small dorsal apophysis proximally (arrow in Fig. 1B View FIGURE 1 ) and distinct ventral protuberance; tibia with projection prolaterally; procursus ( Figs 1 View FIGURE 1 C–D) simple proximally but complex distally, with large, nearly trapezoid distal apophysis (arrow in Fig. 1D View FIGURE 1 ); uncus with scales ( Fig. 2C View FIGURE 2 ); appendix curved, with distinct angular apophysis medially (arrow in Fig. 2C View FIGURE 2 ) and scales distally; embolus weakly sclerotized, with some transparent projections distally ( Fig. 2C View FIGURE 2 ). Retrolateral trichobothrium of tibia I at 6% proximally; legs with short vertical setae on tibiae, metatarsi and tarsi, without spines and curved setae; tarsus I with 28 distinct pseudosegments.
Female (paratype, IZCAS-Ar39790): Similar to male, habitus as in Figs 2 View FIGURE 2 G–H. Total length 4.74 (4.98 with clypeus), carapace 1.34 long, 1.38 wide, opisthosoma 3.40 long, 1.62 wide; tibia I: 9.68; tibia I L/d: 51. Distance PME-PME 0.22, diameter PME 0.16, distance PME-ALE 0.04, distance AME-AME 0.06, diameter AME 0.05. Sternum wider than long (0.98/0.80). Epigynum ( Fig. 2A View FIGURE 2 ) strongly sclerotized, not protruding posteriorly, with knob. Vulva ( Fig. 2B View FIGURE 2 ) with anterior arch provided with long sclerite, pair of elliptic pore plates, and pair of sclerites posterior to pore plates.
Variation: Tibia I in male paratype (IZCAS-Ar39789): 9.36. Tibia I in another female paratype: 8.27 (IZCAS- Ar39791).
Distribution. China (Guizhou, type locality; Fig. 5 View FIGURE 5 ).
Natural history. The species was found on the web in the aphotic zone inside the Feilong Cave (karst area).
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.