Belisana yunnan Zhang, Li & Yao, 2024
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publication ID |
https://doi.org/ 10.3897/zookeys.1202.121633 |
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publication LSID |
lsid:zoobank.org:pub:F2DE6CAC-842E-4275-B3C1-C84D7CEDF5B7 |
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DOI |
https://doi.org/10.5281/zenodo.11356058 |
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persistent identifier |
https://treatment.plazi.org/id/1BB74B62-D952-5B7A-88A8-9E7FCBC129FE |
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treatment provided by |
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scientific name |
Belisana yunnan Zhang, Li & Yao |
| status |
sp. nov. |
Belisana yunnan Zhang, Li & Yao sp. nov.
Figs 16 View Figure 16 , 17 View Figure 17 , 19 C, D View Figure 19 , 21 E, F View Figure 21
Type material.
Holotype ♂ ( IZCAS - Ar 44981 ) and paratype s 2 ♂ ( IZCAS - Ar 44982–83 ) 3 ♀ ( IZCAS - Ar 44984–86 ), Xianren Cave (24 ° 13.929 ' N, 98 ° 25.563 ' E, 1636 m), Luxi, Dehong, Yunnan, China, 24 / 08 / 2010, C Wang, Q Zhao & L Lin leg. GoogleMaps
Etymology.
The specific name refers to the type locality, which is a noun in apposition.
Diagnosis.
The new species resembles B. yuhaoi Yang & Yao, 2023 ( Yang et al. 2023: 178, figs 2 A, B, 3 A – D, 4 A – H) by having similar bulbal apophyses and epigyne (Figs 17 A, C View Figure 17 , 21 E View Figure 21 ), but can be distinguished by differences in males: tips of cheliceral distal apophyses closer to each other (Fig. 17 D View Figure 17 vs widely separated), procursus without sclerotized dorso-subdistal apophysis (Figs 16 C View Figure 16 , 19 C View Figure 19 vs present) and with nearly half-round retrolateral flap (Figs 16 D View Figure 16 , 19 D View Figure 19 vs angular); differences in females: epigynal pockets closer to each other (Figs 17 A, B View Figure 17 , 21 E, F View Figure 21 vs widely separated), pore plates nearly isosceles triangle-shaped (Figs 17 B View Figure 17 , 21 F View Figure 21 vs scalene triangle-shaped).
Description.
Male (holotype): Total length 1.90 (1.98 with clypeus), carapace 0.79 long, 0.71 wide, opisthosoma 1.11 long, 0.87 wide. Leg I: 18.71 (4.85, 0.56, 4.75, 7.05, 1.50), leg III: 9.35 (2.66, 0.30, 2.25, 3.25, 0.89), legs II and IV missing; tibia I L / d: 59. Eye inter-distances and diameters: PME – PME 0.11, PME 0.08, PME – ALE 0.03, AME absent. Sternum width / length: 0.63 / 0.60. Habitus as in Fig. 17 E, F View Figure 17 . Carapace yellowish, with brown radiating marks; sternum yellowish. Legs whitish, without darker rings. Opisthosoma yellowish, without spots. Thoracic furrow absent. Clypeus unmodified. Chelicerae (Fig. 17 D View Figure 17 ) with a pair of proximo-lateral apophyses and a pair of curved distal apophyses (distance between tips: 0.19). Palp as in Fig. 16 A, B View Figure 16 ; trochanter with ventral apophysis (as long as wide, arrow 1 in Fig. 16 B View Figure 16 ); femur with tiny retrolatero-proximal protrusion (arrow 2 in Fig. 16 B View Figure 16 ); procursus simple proximally but complex distally, with prolatero-ventral membranous lamella (arrow 1 in Figs 16 C View Figure 16 , 19 C View Figure 19 ) bearing median sclerotized part, distal membranous lamella (arrow 2 in Figs 16 C View Figure 16 , 19 C View Figure 19 ) bearing median sclerotized part, distal spine (arrow 3 in Figs 16 C View Figure 16 , 19 C View Figure 19 ), and nearly half-round retrolateral flap (Figs 16 D View Figure 16 , 19 D View Figure 19 ); bulb (Fig. 17 C View Figure 17 ) with hooked apophysis and simple embolus. Retrolateral trichobothria on tibia I at 14 % proximally; legs with short vertical setae on metatarsi; tarsus I with 21 distinct pseudosegments.
Female (paratype, IZCAS - Ar 44984 ): Similar to male, habitus as in Fig. 17 G, H View Figure 17 . Total length 2.14 (2.20 with clypeus), carapace 0.78 long, 0.77 wide, opisthosoma 1.36 long, 1.00 wide; tibia I: 3.88; tibia I L / d: 52. Eye inter-distances and diameters: PME – PME 0.13, PME 0.07, PME – ALE 0.02. Sternum width / length: 0.62 / 0.56. Epigyne (Figs 17 A View Figure 17 , 21 E View Figure 21 ) simple and flat, anteriorly slightly sclerotized, with a pair of postero-median pockets 0.12 apart. Vulva (Figs 17 B View Figure 17 , 21 F View Figure 21 ) with ridge-shaped anterior arch and a pair of nearly triangular pore plates.
Variation.
Tibia I in two male paratypes ( IZCAS - Ar 44982 –83 ): 5.38, 6.73. Tibia I in the other two female paratypes ( IZCAS - Ar 44985 –86 ): 3.72, 3.85.
Habitat.
The species was found in the dark zone inside the cave.
Distribution.
China (Yunnan, type locality; Fig. 1 View Figure 1 ).
| IZCAS |
Institute of Zoology, Chinese Academy of Sciences |
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.