Liphistius inthanon Zhan & Xu, 2022
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publication ID |
https://dx.doi.org/10.3897/zookeys.1104.83264 |
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publication LSID |
lsid:zoobank.org:pub:400FB403-5624-4BFA-8C17-F12208C3B564 |
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persistent identifier |
https://treatment.plazi.org/id/59FA29B4-17FA-4613-9689-E6F639EBB8A5 |
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taxon LSID |
lsid:zoobank.org:act:59FA29B4-17FA-4613-9689-E6F639EBB8A5 |
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treatment provided by |
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scientific name |
Liphistius inthanon Zhan & Xu |
| status |
sp. nov. |
Liphistius inthanon Zhan & Xu sp. nov.
Fig. 4 View Figure 4
Type material.
Holotype: Thailand • 1 ♂, Chiang Mai Province, Mae Chaem District, Doi Inthanon National Park, 18.52°N, 98.49°E; alt. 1700 m; 19 November 2017; F.X. Liu, D. Li, X. Xu, V. Sivayyapram leg.; XUX-2017-372A. Paratypes: Thailand • 1 ♂ 7 ♀♀, alt. 1700-1714 m, same data as for the holotype; XUX-2017-373A, XUX-2017-372, 374, 377, 378, 379, 380, 381.
Diagnosis.
The male of L. inthanon sp. nov. resemble males of L. bristowei Platnick & Sedgwick, 1984, L. lannaianus Schwendinger, 1990, L. maewongensis Sivayyapram, Smith, Weingdow & Warrit, 2017, L. marginatus Schwendinger, 1990 and L. yamasakii Ono, 1988 in having adjoining embolic parts (Fig. 4E, G View Figure 4 ) and a distinctly elevated cumulus (Fig. 4C View Figure 4 ), but it can be distinguished from the male of L. bristowei in having the tibial apophysis with more stouter spines (Fig. 4A-C View Figure 4 ) and a larger subtegular apophysis (Fig. 4D-G View Figure 4 ); from males of L. lannaianus , L. maewongensis , and L. marginatus in having the cumulus more elevated (Fig. 4C View Figure 4 ); from the male of L. yamasakii in having the elevated cumulus longer and with fewer spines (Fig. 4B, C View Figure 4 ); from males of L. hatyai sp. nov. and L. keeratikiati sp. nov. in having the tibial apophysis with shorter setae (Fig. 4A-C View Figure 4 ), the cumulus noticeably elevated (Fig. 4C View Figure 4 ), and a larger subtegular apophysis (Fig. 4F View Figure 4 ); from males of other Liphistius species in having adjoining embolic parts (Fig. 4E, G View Figure 4 ) and a strongly elevated cumulus (Fig. 4C View Figure 4 ).
The female of L. inthanon sp. nov. differ from the female of L. bristowei in having the poreplate with an arched anterior margin (Fig. 4H-M View Figure 4 ); from females of L. lannaianus and L. yamasakii in having the central dorsal opening larger oval (Fig. 4H-J View Figure 4 ); from the female of L. maewongensis in having the genital atrium with a wider posterior margin (Fig. 4L, M View Figure 4 ); from females of L. hatyai sp. nov. and L. keeratikiati sp. nov. in having a wider posterior stalk (Fig. 4I, J View Figure 4 ), longer oval central dorsal opening (Fig. 4H-J View Figure 4 ), and larger receptacular cluster (Fig. 4K-M View Figure 4 ); from females of other Liphistius species in having a wider posterior stalk (Fig. 4H-M View Figure 4 ).
Description.
Male (holotype). Carapace reddish brown, with a few short, scattered bristles; opisthosoma olive-green, with 12 dark tergites, close to each other, 2-6 larger than others, fifth largest; chelicerae robust, promargin of cheliceral groove with 9 denticles of variable size; labium yellowish brown, separated from sternum; sternum yellowish brown, with a few weakly setae on the anterior tip and many long setae on the elongated posterior tip; legs dark brown, and with strong setae and spines, without distinct annulations and with 3 tarsal claws; 8 spinnerets. Measurements: BL 17.38, CL 9.25, CW 9.62, OL 7.42, OW 5.66; eye sizes and interdistances: AME 0.18, ALE 0.87, PME 0.49, PLE 0.63, AME-AME 0.09, AME-ALE 0.22, PME-PME 0.12, PME-PLE 0.15, ALE-PLE 0.10, ALE-ALE 0.15, PLE-PLE 0.51, AME-PME 0.13. Labium 1.00 long and 0.51 wide. Sternum 4.49 long and 1.35 wide. Leg I 28.45 (7.56 + 4.16 +6.37 + 6.50 + 3.86), leg II 31.13 (8.54 + 4.01 + 6.63 + 7.70 + 4.25), leg III 34.09 (8.54 + 4.24 + 6.58 + 9.61 + 5.12), leg IV 42.23 (10.62 + 3.78 + 8.60 + 12.70 + 6.53).
Palp: tibial apophysis with 4 stouter spines, and several strong spines on subterminal ledge (Fig. 4A-C View Figure 4 ); paracymbium with many short strong setae situated at the tip (Fig. 4B, C View Figure 4 ); cumulus distinctly elevated with several spines on tip (Fig. 4C View Figure 4 ); subtegular apophysis large, strongly developed (Fig. 4D, F View Figure 4 ); proximal edge of contrategulum elevated (Fig. 4F, G View Figure 4 ); tegulum lunate, with dentate margin (Fig. 4G View Figure 4 ); embolic parts adjoining (Fig. 4E, F, G View Figure 4 ); embolus with 2 longitudinal ridges reaching the tip distally (Fig. 4D, E, G View Figure 4 ).
Female (XUX-2017-372). Carapace reddish brown, with a few short, scattered bristles; opisthosoma olive-green, with 12 dark brown tergites, close to each other, 2-6 larger than others, fifth largest; 8 eyes on dark ocular tubercle; chelicerae robust, reddish brown; promargin of chelicerae groove with 12 denticles of variable size; labium reddish brown, fused with sternum; sternum reddish brown and with several setae; legs reddish brown, with strong setae and spines, without distinct annulations, with 3 tarsal claws; 8 spinnerets. Measurements: BL 30.6, CL 12.18, CW 11.74, OL 17.49, OW 17.38; eye sizes and interdistances: AME 0.14, ALE 1.02, PME 0.52, PLE 0.82, AME-AME 0.19, AME-ALE 0.25, PME-PME 0.09, PME-PLE 0.16, ALE-PLE 0.13, ALE-ALE 0.16, PLE-PLE 0.66, AME-PME 0.12. Labium 2.78 long and 1.85 wide. Sternum 5.15 long, 1.81 wide. Palp 22.82 (7.08 + 4.24 + 5.87 + 5.63), leg I 26.61 (8.27 + 4.51 + 5.71 + 4.80 + 3.32), leg II 26.59 (7.85 + 4.96 + 5.44 + 5.16 + 3.18), leg III 28.88 (8.66 + 4.70 + 5.41 + 6.41 + 3.70), leg IV 33.46 (9.37 + 3.76 + 7.23 + 8.79 + 4.31).
Genitalia: poreplate with a long, oval central dorsal opening, and with projecting posterior corners; receptacular cluster racemose and large; posterior stalk wide, lateral margins of genital atrium with some hairs (Fig. 4H-M View Figure 4 ).
Etymology.
The species epithet “inthanon” is a toponym referring to the type locality, Doi Inthanon National Park.
Distribution.
Northern Thailand (Chiang Mai Province) (Fig. 2 View Figure 2 ).
Variation.
The range of females’ measurements (N = 7): BL 16.92-30.6, CL 7.90-12.18, CW 7.53-11.74, OL 8.5-17.49, OW 6.63-17.38. The number of denticles on the promargin of cheliceral groove varies from 12-14 (N = 7). The examined female genitalia were found to differ in that the posterior margin of genital atrium can be narrow, slightly W-shaped (Fig. 4H, K View Figure 4 ), or wide and straight (Fig. 4I, J, L, M View Figure 4 ), and the shape of poreplate anterior margin can slightly vary (Fig. 4K-M View Figure 4 ).
Remarks.
Liphistius inthanon sp. nov. can be assigned to the Liphistius bristowei -group based on the following characters: the male palp has a pronounced, elevated cumulus (Fig. 4C View Figure 4 ); the embolic parts are adjoining (Fig. 4D, G View Figure 4 ), the sclerotised part of the embolus bears two longitudinal ridges reaching the tip (Fig. 4D, G View Figure 4 ), and, except for L. marginatus , all have a large subtegular apophysis (Fig. 4F View Figure 4 ); the poreplate has a wide posterior stalk and a projecting posterior corner (Fig. 4H-M View Figure 4 ). The Liphistius bristowei -group contains L. bristowei , L. lannaianus , L. maewongensis , L. marginatus , L. yamasakii ( Schwendinger 1990), and L. inthanon sp. nov.
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