Savarna bannang 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.3856750 |
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persistent identifier |
https://treatment.plazi.org/id/971C0A2A-FFD7-F473-FF2A-E3B6FCAFB486 |
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treatment provided by |
Plazi |
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scientific name |
Savarna bannang Yao & Li |
| status |
sp. nov. |
Savarna bannang Yao & Li View in CoL sp. nov.
Figs 1–2 View FIGURE 1 View FIGURE 2
Type material. Holotype: ♂ (IZCAS-Ar39725), Rad Cave (6°16’27.7’’N, 101°15’2.8’’E, elevation 52 m), Ban- nang District, Yala, Thailand, 22 October 2015, P. Wongprom leg. GoogleMaps Paratypes: 2♂♂ (IZCAS-Ar39726–Ar39727), 2♀♀ (IZCAS-Ar39728–Ar39729), same data as holotype GoogleMaps .
Etymology. The specific name is a noun in apposition and refers to the type locality.
Diagnosis. The species resembles S. chiangmai sp. nov. ( Figs 3–4 View FIGURE 3 View FIGURE 4 ) with similar embolus ( Fig. 2C View FIGURE 2 ), male chelicerae ( Fig. 2D View FIGURE 2 ) and epigynum ( Fig. 2A View FIGURE 2 ) and S. tesselata ( Simon, 1901) (see Huber 2005: 78, figs 129–130, 138–140; Huber et al. 2015b: 12, figs 11–13, 32–33, 40–41, 63–73) with male chelicerae ( Fig. 2D View FIGURE 2 ) but can be distinguished by presence of long, spine-shaped subdistal sclerite dorsally (arrow 1 in Fig. 1C View FIGURE 1 ), curved distal apophysis prolaterally (arrow 2 in Fig. 1C View FIGURE 1 ) and two large, distal membranous processes (arrows 3 and 4 in Fig. 1C View FIGURE 1 ) on procursus and by presence of large, elliptic vulval pore plates ( Fig. 2B View FIGURE 2 ); also distinguised from S. chiangmai sp. nov. by presence of ridge-shaped vulval anterior arch ( Fig. 2B View FIGURE 2 ); also distinguished from S. tesselata by short and wide embolus ( Fig. 2C View FIGURE 2 ) and by absence of medial posterior lip on epigynum ( Fig. 2A View FIGURE 2 ).
Description. Male (holotype, IZCAS-Ar39725): Total length 2.78 (2.96 with clypeus), prosoma 0.86 long, 1.02 wide, opisthosoma 1.92 long, 1.28 wide. Leg I: 30.39 (7.51 + 0.43 + 7.24 + 12.30 + 2.91), leg II: 21.46 (5.93 + 0.42 + 5.19 + 8.08 + 1.84), leg III: 14.16 (4.22 + 0.35 + 3.34 + 5.03 + 1.22), leg IV: 18.33 (5.32 + 0.36 + 4.36 + 7.04 + 1.25); tibia I L/d: 59; leg formula: I-II-IV-III. Distance PME-PME 0.18, diameter PME 0.15, distance PME-ALE 0.03, AME absent. Sternum slightly wider than long (0.72/0.66). Habitus as in Figs 2 View FIGURE 2 E–F. Dorsal shield of prosoma yellowish, with black margins and wide, dark median stripe behind ocular area; ocular area and clypeus dark brown; sternum black. Legs brown, but slightly whitish on distal parts of femora and tibiae, with darker rings on subdistal parts of femora and proximal and subdistal parts of tibiae. Opisthosoma yellowish, with black subcuticular spots lying above deeper white spots dorsally and laterally and wide black stripe ventrally. Ocular area elevated, each eye triad on top of short, laterally directed hump. Thoracic furrow deep. Chelicerae as in Fig. 2D View FIGURE 2 , with pair of proximo-lateral apophyses. Palps as in Figs 1 View FIGURE 1 A–B, trochanter with small dorsal apophysis (arrow in Fig. 1A View FIGURE 1 ) and long ventral apophysis proximally attached to femur; procursus simple proximally but complex distally, with long, spine-shaped subdistal sclerite dorsally (arrow 1 in Fig. 1C View FIGURE 1 ), curved distal apophysis prolaterally (arrow 2 in Fig. 1C View FIGURE 1 ) and two large, distal membranous processes (arrows 3 and 4 in Fig. 1C View FIGURE 1 ); bulb ( Fig. 2C View FIGURE 2 ) with proximal sclerite and sclerotized embolus (provided with large, sclerotized distal apophysis, arrow 1 in Fig. 2C View FIGURE 2 ) apparently containing sperm duct (sperm duct opening visible, arrow 2 in Fig. 2C View FIGURE 2 ). Retrolateral trichobothrium of tibia I at 6% proximally; prolateral trichobothrium absent on tibia I, present on other tibiae; legs with short spines in single ventral row on femur I, with vertical hairs in higher than usual density on all tibiae, without curved hairs; tarsus I with 14 distinct pseudosegments.
Female (paratype, IZCAS-Ar39728): Similar to male, habitus as in Figs 2 View FIGURE 2 G–H. Total length 2.90 (3.08 with clypeus), prosoma 0.74 long, 0.92 wide, opisthosoma 2.16 long, 1.48 wide. Leg I: – (7.01 + 0.43 + 6.54 + 10.79 + –), femur II: 5.22 (other segments missing), leg III: 13.05 (3.83 + 0.38 + 3.17 + 4.43 + 1.24), leg IV: 17.25 (5.14 + 0.38 + 4.16 + 6.33 + 1.24); tibia I L/d: 55. Distance PME-PME 0.16, diameter PME 0.10, distance PME-ALE 0.04, AME absent. Sternum slightly wider than long (0.64/0.52). Epigynum ( Fig. 2A View FIGURE 2 ) slightly protruding. Vulva ( Fig. 2B View FIGURE 2 ) with ridge-shaped anterior arch and pair of large elliptic pore plates.
Variation: Tibia I in male paratypes (n = 2): 7.06 (IZCAS-Ar39726), 7.21 (IZCAS-Ar39727). Legs I and II missing in another female paratype (IZCAS-Ar39729).
Natural history. The species was found in the twilight zone of the Rad 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.