Bifurcia kangding, Yang & Li & Yao, 2024
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publication ID |
https://doi.org/ 10.3897/zse.100.124160 |
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publication LSID |
lsid:zoobank.org:pub:0E190BDE-BF4D-4F7E-A8C0-9AB5383D8BC8 |
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DOI |
https://doi.org/10.5281/zenodo.11474085 |
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persistent identifier |
https://treatment.plazi.org/id/BFCA8CFF-92DE-4C0F-97B3-5A27552EA929 |
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taxon LSID |
lsid:zoobank.org:act:BFCA8CFF-92DE-4C0F-97B3-5A27552EA929 |
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treatment provided by |
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scientific name |
Bifurcia kangding |
| status |
sp. nov. |
Bifurcia kangding sp. nov.
Figs 2 View Figure 2 , 3 View Figure 3 , 4 View Figure 4 , 16 A, D View Figure 16
Type material.
Holotype ♂ ( IZCAS - Ar 44925 ) and paratypes 1 ♂ 2 ♀ ( IZCAS - Ar 44926 –28), Mugecuo Scenic Area (30 ° 11.72 ' N, 101 ° 54.43 ' E, 3760 m elev.), Wangmu Village , Yala Town , Kangding, Garze Tibetan Autonomous Prefecture, Sichuan, China, 14 / 07 / 2004, Lihong Tu leg. GoogleMaps
Etymology.
The specific name refers to the type locality; noun in apposition.
Diagnosis.
The new species resembles B. xiaojin sp. nov. with similar paracymbium (P) and epigyne (Figs 2 B View Figure 2 , 3 A View Figure 3 ), but can be easily distinguished by embolus thumb (TH) with dentate end (Figs 2 B View Figure 2 , 16 D View Figure 16 vs. spinous, Figs 13 B View Figure 13 , 16 J View Figure 16 ), by chitinized basal part of median membrane ( CPM) small with tip end (Fig. 16 A View Figure 16 vs. finger-shaped, Fig. 16 H View Figure 16 ), and by spermathecae (S) separated by diameter less than their inter-distance (Fig. 3 C View Figure 3 vs. inter-distance less than their diameter, Fig. 14 C View Figure 14 ).
Description.
Male (holotype). Total length: 2.12, carapace 0.92 long, 0.74 wide, abdomen 1.30 long, 0.80 wide. Eye inter-distances and diameters: AME 0.06, AME-AME 0.03, ALE 0.08, AME-ALE 0.06, PME 0.08, PME-PME 0.05, PLE 0.07, and PME-PLE 0.06. Sternum 0.54 long, 0.52 wide. Clypeus 0.12 high. Chelicerae promargin with 3 teeth, retromargin with 4 teeth. Length of legs: I 5.50 (1.54, 0.28, 1.44, 1.34, 0.90), II 4.90 (1.26, 0.26, 1.44, 1.14, 0.80), III 3.10 (0.78, 0.22, 0.76, 0.76, 0.58), IV 4.44 (1.24, 0.24, 1.12, 1.10, 0.74). Leg formula: I-II-IV-III. TmI 0.16, TmIV absent. Tibial spine formula: 2-2 - 2 - 2. Carapace brown. Sternum dark brown. Abdomen with greenish gray dorsal spots (Fig. 4 A, B View Figure 4 ).
Palp (Fig. 2 View Figure 2 ). Patella with long dorsal bristle. Tibia unmodified. Cymbium with hook-shaped proximal apophysis ( PCA) pointing retrolaterally. Paracymbium (P) bifurcate with three branches: distally triangular branch, sharp-pointed branch and lower sclerotized branch. Pit hook ( PH) on stout distal part of suprategulum ( SPT) extremely reduced to small outgrowth. Embolic division (Fig. 16 A, D View Figure 16 ): anterior part of radix ( APR) hook-shaped; sperm duct inside the radix ( R) inconspicuous with Fickert’s gland ( FG); pseudolamella ( PL) strongly sclerotized and lamellar extension ( LE) absent. Anterior terminal apophysis ( ATA) short-pointing anterodorsally; median terminal apophysis ( MTA) membranous with many slender branches; posterior terminal apophysis ( PTA) with serrated margin. Embolus (E) with short basal part, apical part with conical embolus proper ( EP), L-shaped thumb (TH), and sharp apex ( AX). Median membrane ( MM) leaf-shaped with numerous papillae, and basal part of median membrane chitinized ( CPM).
Female (paratype). Total length: 2.42, carapace 0.94 long, 0.72 wide, abdomen 1.48 long, 1.10 wide. Eye inter-distances and diameters: AME 0.05, AME-AME 0.02, ALE 0.07, AME-ALE 0.05, PME 0.07, PME-PME 0.05, PLE 0.08, and PME-PLE 0.04. Sternum 0.56 long, 0.52 wide. Clypeus 0.12 high. Chelicerae promargin with 3 teeth, retromargin with 5 teeth. Length of legs: I 5.28 (1.44, 0.32, 1.34, 1.30, 0.88), II 4.74 (1.32, 0.30, 1.18, 1.14, 0.80), III 3.38 (1.02, 0.30, 0.80, 0.72, 0.54), IV 4.36 (1.26, 0.30, 1.06, 1.06, 0.68). Leg formula: I-II-IV-III. TmI 0.15, TmIV absent. Tibial spine formula: 2-2 - 2 - 2. Coloration generally as in male (Fig. 4 C, D View Figure 4 ).
Epigyne (Fig. 3 View Figure 3 ). Basal part of scape ( BS) nearly T-shaped. Posterior part of posterior median plate ( PMP) M-shaped. Distal part of scape ( DPS) forming a circle with basal part of scape. Spermathecae (S) round.
Distribution.
China (Sichuan, type locality; Fig. 1 View Figure 1 ).
| IZCAS |
Institute of Zoology, Chinese Academy of Sciences |
| CPM |
Christoffel Park Museum |
| SPT |
Botanic Gardens Museum |
| R |
Departamento de Geologia, Universidad de Chile |
| FG |
Palaontologische Hauptsammlung der Bergakadmie |
| PL |
Západoceské muzeum v Plzni |
| LE |
Servico de Microbiologia e Imunologia |
| ATA |
Ataturk Universitesi |
| MTA |
Maden Tetkik ve Arama Enstituesue |
| MM |
University of Montpellier |
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.
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