Bifurcia labahe, 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.11474087 |
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persistent identifier |
https://treatment.plazi.org/id/0C7C6235-50F6-4DAE-B2AB-C1B996ACE792 |
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taxon LSID |
lsid:zoobank.org:act:0C7C6235-50F6-4DAE-B2AB-C1B996ACE792 |
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treatment provided by |
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scientific name |
Bifurcia labahe |
| status |
sp. nov. |
Bifurcia labahe sp. nov.
Figs 5 View Figure 5 , 6 View Figure 6 , 16 B, E View Figure 16
Type material.
Holotype ♂ ( IZCAS - Ar 44929 ), Labahe Nature Reserve (30 ° 9.89 ' N, 102 ° 27.24 ' E), Tianquan County, Ya’an, Sichuan, China, 10 / 07 / 2004, Lihong Tu leg. GoogleMaps
Etymology.
The specific name refers to the type locality; noun in apposition.
Diagnosis.
The species resembles B. kangding sp. nov. with similar pseudolamella ( PL) and median membrane ( MM) (Fig. 16 B, E View Figure 16 ), but can be easily distinguished by thumb of embolus (TH) 0.6 times radix ( R) length (Figs 5 A View Figure 5 , 16 B View Figure 16 vs. 0.3, Figs 2 A View Figure 2 , 16 A View Figure 16 ), by anterior part of radix ( APR) round (Fig. 16 E View Figure 16 vs. hooked, Fig. 16 D View Figure 16 ), by median terminal apophysis ( MTA) with jagged edge (Fig. 16 B View Figure 16 vs. branched, Fig. 16 A View Figure 16 ), and by posterior terminal apophysis ( PTA) thick and 0.7 times pseudolamella ( PL) length (Fig. 16 B View Figure 16 vs. thin and 0.2, Fig. 16 A View Figure 16 ).
Description.
Male (holotype). Total length: 2.24, carapace 1.06 long, 0.96 wide, abdomen 1.18 long, 0.78 wide. Eye inter-distances and diameters: AME 0.05, AME-AME 0.02, ALE 0.09, AME-ALE 0.06, PME 0.06, PME-PME 0.07, PLE 0.09, and PME-PLE 0.05. Sternum 0.61 long, 0.45 wide. Clypeus 0.08 high. Chelicerae promargin with 2 teeth, retromargin with 1 tooth. Length of legs: I 7.00 (1.84, 0.34, 1.92, 1.80, 1.10), II 5.80 (1.64, 0.28, 1.62, 1.44, 0.82), III 4.34 (1.27, 0.27, 1.08, 1.09, 0.63), IV 5.70 (1.68, 0.28, 1.54, 1.48, 0.72). Leg formula: I-II-IV-III. TmI 0.17, TmIV absent. Tibial spine formula: 2-2 - 2 - 2. Carapace brown. Sternum dark brown. Abdomen with greenish gray dorsal spots (Fig. 6 View Figure 6 ).
Palp (Fig. 5 View Figure 5 ). Patella with long dorsal bristle. Tibia unmodified. Cymbium with hook-shaped proximal apophysis ( PCA) pointing retrolaterally. Paracymbium (P) bifurcate with three branches: mushroom-shaped branch and two short branches proximally. Pit hook ( PH) on stout distal part of suprategulum ( SPT) extremely reduced to small outgrowth. Embolic division (Fig. 16 B, E View Figure 16 ): anterior part of radix ( APR) round; sperm duct inside the radix ( R) inconspicuous with Fickert’s gland ( FG); pseudolamella ( PL) smooth and pointed; lamellar extension ( LE) absent. Anterior terminal apophysis ( ATA) short; median terminal apophysis ( MTA) board; posterior terminal apophysis ( PTA) thick with dentate anterior margin. Embolus (E) with conical embolus proper ( EP), large thumb (TH), and apex ( AX). Median membrane ( MM) round with numerous papillae, and basal part of median membrane chitinized ( CPM).
Female. Unknown.
Distribution.
China (Sichuan, type locality; Fig. 1 View Figure 1 ).
| IZCAS |
Institute of Zoology, Chinese Academy of Sciences |
| PL |
Západoceské muzeum v Plzni |
| MM |
University of Montpellier |
| R |
Departamento de Geologia, Universidad de Chile |
| MTA |
Maden Tetkik ve Arama Enstituesue |
| SPT |
Botanic Gardens Museum |
| FG |
Palaontologische Hauptsammlung der Bergakadmie |
| LE |
Servico de Microbiologia e Imunologia |
| ATA |
Ataturk Universitesi |
| CPM |
Christoffel Park Museum |
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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