Savarna chiangmai Yao & Li, 2020
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publication ID |
https://doi.org/ 10.11646/zootaxa.4778.2.4 |
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publication LSID |
lsid:zoobank.org:pub:5ACCAA9D-0C9B-4435-B665-15A0C79E2D6E |
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DOI |
https://doi.org/10.5281/zenodo.3856758 |
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persistent identifier |
https://treatment.plazi.org/id/971C0A2A-FFD2-F470-FF2A-E4CBFCAFB5CA |
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treatment provided by |
Plazi |
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scientific name |
Savarna chiangmai Yao & Li |
| status |
sp. nov. |
Savarna chiangmai Yao & Li View in CoL sp. nov.
Figs 3–4 View FIGURE 3 View FIGURE 4
Type material. Holotype: ♂ (IZCAS-Ar39730), Tham Mongkhon Wissuti Taeb Cave (19°34’2.87”N, 99°10’6.53”E, elevation 662 m), Chiangmai, Thailand, 27 June 2014, P. Wongprom leg. GoogleMaps Paratypes: 2♂♂ (IZCAS-Ar39731– Ar39732), 2♀♀ (IZCAS-Ar39733–Ar39734), same data as holotype GoogleMaps .
Etymology. The specific name is a noun in apposition and refers to the type locality.
Diagnosis. This species resembles S. bannang sp. nov. ( Figs 1–2 View FIGURE 1 View FIGURE 2 ) with similar embolus ( Fig. 4C View FIGURE 4 ), male chelicerae ( Fig. 4D View FIGURE 4 ) and epigynum ( Fig. 4A View FIGURE 4 ) and S. kraburiensis Wongprom & Wiwatwitaya, 2015 (see Wongprom & Wiwatwitaya 2015: 2, figs 1–2) with similar male chelicerae ( Fig. 4D View FIGURE 4 ) but can be distinguished by presence of angular subdistal sclerite dorsally (arrow 1 in Fig. 3C View FIGURE 3 ), short distal spine prolaterally (arrow 2 in Fig. 3C View FIGURE 3 ) and two small, distal membranous processes (arrows 1 and 2 in Fig. 3D View FIGURE 3 ) on procursus and by presence of wavy vulval anterior arch and long elliptic vulval pore plates ( Fig. 4B View FIGURE 4 ); also distinguished from S. kraburiensis by short and wide embolus ( Fig. 4C View FIGURE 4 ), by slightly protruding epigynum ( Fig. 4A View FIGURE 4 ) and by elliptic vulval pore plates ( Fig. 4B View FIGURE 4 ).
Description. Male (holotype, IZCAS-Ar39730): Total length 2.49 (2.63 with clypeus), prosoma 0.90 long, 0.96 wide, opisthosoma 1.59 long, 1.08 wide. Leg I: 27.11 (7.02 + 0.41 + 6.58 + 10.54 + 2.56), leg II: 17.44 (4.99 + 0.38 + 4.17 + 6.67 + 1.23), leg III: 12.95 (3.83 + 0.35 + 3.14 + 4.72 + 0.91), leg IV: 14.21 (4.16 + 0.36 + 3.32 + 5.43 + 0.94); tibia I L/d: 59; leg formula: I-II-IV-III. Distance PME-PME 0.15, diameter PME 0.12, distance PME- ALE 0.05, AME absent. Sternum wider than long (0.74/0.56). Habitus as in Figs 4 View FIGURE 4 E–F. Dorsal shield of prosoma yellowish, with brown margins and wide, brown median stripe behind ocular area; ocular area brown, but yellowish medially; clypeus brown; sternum black. Legs brownish, but slightly whitish on distal parts of femora and tibiae, with darker rings on subdistal parts of femora and proximal, median and subdistal parts of tibiae. Opisthosoma yellowish, with black subcuticular spots lying above deeper white spots dorsally and laterally and distinct ventral pattern consisting of three interconnected black marks. Ocular area elevated, each eye triad on top of short, laterally directed hump. Thoracic furrow deep. Chelicerae as in Fig. 4D View FIGURE 4 , with pair of proximo-lateral apophyses. Palps as in Figs 3 View FIGURE 3 A–B, trochanter with small dorsal apophysis (arrow in Fig. 3A View FIGURE 3 ) and long ventral apophysis proximally attached to femur ( Fig. 3B View FIGURE 3 ); procursus simple proximally but complex distally, with angular subdistal sclerite dorsally (arrow 1 in Fig. 3C View FIGURE 3 ), short distal spine prolaterally (arrow 2 in Fig. 3C View FIGURE 3 ) and two small, distal membranous processes (arrows 1 and 2 in Fig. 3D View FIGURE 3 ); bulb ( Fig. 4C View FIGURE 4 ) with proximal sclerite and sclerotized embolus (provided with large, sclerotized distal apophysis, arrow 1 in Fig. 4C View FIGURE 4 ) apparently containing sperm duct (sperm duct opening visible, arrow 2 in Fig. 4C View FIGURE 4 ). Retrolateral trichobothrium of tibia I at 8% proximally; prolateral trichobothrium absent on tibia I, present on other tibiae; legs with vertical hairs in higher than usual density on all tibiae, without short spines and curved hairs; tarsus I with 19 distinct pseudosegments.
Female (paratype, IZCAS-Ar39733): Similar to male, habitus as in Figs 4 View FIGURE 4 G–H. Total length 2.72 (2.84 with clypeus), prosoma 0.88 long, 0.88 wide, opisthosoma 1.84 long, 1.48 wide. Legs I and IV missing (see variation), leg II: 14.43 (4.16 + 0.35 + 3.44 + 5.23 + 1.25), leg III: 10.09 (3.11 + 0.31 + 2.34 + 3.52 + 0.81). Distance PME- PME 0.14, diameter PME 0.11, distance PME-ALE 0.04, AME absent. Sternum slightly wider than long (0.62/0.52). Ocular area black, but brown medially. Epigynum ( Fig. 4A View FIGURE 4 ) slightly protruding. Vulva ( Fig. 4B View FIGURE 4 ) with wavy anterior arch and pair of long elliptic pore plates.
Variation: Tibia I in one male paratype (leg I missing in another specimen): 6.01 (IZCAS-Ar39731). In another female paratype (IZCAS-Ar39734): Leg I: 22.23 (5.19 + 0.37 + 5.08 + 9.12 + 2.47), leg IV: 13.72 (4.14 + 0.33 + 3.31 + 5.10 + 0.84); tibia I L/d: 46.
Natural history. The species was found in the twilight zone of the Tham Mongkhon Wissuti Taeb Cave (karst area).
Distribution. Known only from the type locality ( Fig. 11 View FIGURE 11 ).
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.