Acusilas tongi, Mi & Li, 2021
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publication ID |
https://dx.doi.org/10.3897/zookeys.1072.73345 |
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persistent identifier |
https://treatment.plazi.org/id/07C2A2E8-A856-51C2-A78D-7D4B1DE4E466 |
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treatment provided by |
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scientific name |
Acusilas tongi |
| status |
sp. nov. |
Acusilas tongi View in CoL sp. nov.
Figs 1 View Figure 1 , 2 View Figure 2 , 20A View Figure 20
Type material
. Holotype. ♂ (IZCAS-Ar42503), China: Yunnan, Xishuangbanna, Mengla County, Menglun Township, Menglun Nature Reserve, primary tropical seasonal rainforest (21°57.43'N, 101°12.28'E, ca 792 m), 19-25. XI.2006, G. Zheng leg. Paratypes: 1♂ (IZCAS-Ar42504), rubber plantation (approx. 20 years old) (21°54.47'N, 101°15.98'E, ca 570 m), 5-12.XI.2006, G. Zheng leg.; 1♀ (IZCAS-Ar42505), rubber plantation (approx. 20 years old) (21°54.65'N, 101°16.26'E, ca 570 m), 5-12.XII.2006, G. Zheng leg.; 1♀ (IZCAS-Ar42506), secondary tropical seasonal moist forest (21°54.61'N, 101°17.01'E, ca 630 m), 28.VII.2007, G. Zheng leg.; 1♂ (IZCAS-Ar42507), low evergreen forest along G213 roadside (21°53.79'N, 101°17.15'E, ca 590 m), 27.XI.2009, G. Tang leg.; 1♀ (IZCAS-Ar42508), Xishuangbanna Tropical Botanical Garden, grapefruit plantation (21°54.07'N, 101°16.36'E, ca 540 m), 22.VII.2018, X. Mi leg.; 1♂ (IZCAS-Ar42509), Xishuangbanna Tropical Botanical Garden, Yulinjiegou scenic spot (21°55.13'N, 101°16.08'E, ca 550 m), 29.VII.2018, X. Mi leg.; 1♀(IZCAS-Ar42510), Teak plantation (21°54.03'N, 101°16.39'E, ca 550 m), 10.VIII.2018, Z. Bai et al. leg.; 1♂ (IZCAS-Ar42511), site 5 around the dump (21°54.37'N, 101°16.07'E, ca 620 m), 6.V.2019, Y. Tong leg.
Etymology
. The species is named after Dr. Yanfeng Tong (Shenyang Normal University), one of the collectors of the type specimens; noun (name) in genitive case.
Diagnosis
. The new species resembles A. malaccensis in habitus but can be distinguished by the: 1) interrupted stripes on the female abdomen vs. uninterrupted (Murphy and Murphy, 1983: fig. 16); 2) spermatheca ovoid vs. globular (Murphy and Murphy, 1983: fig. 12).
Description
. Male (holotype, Figs 1A, B View Figure 1 , 2D, E View Figure 2 , 20A View Figure 20 ). Total length 2.15. Carapace 1.15 long, 0.90 wide. Abdomen 1.05 long, 1.15 wide. Clypeus 0.08 high. Eye sizes and interdistances: AME 0.13, ALE 0.05, PME 0.10, PLE 0.08, AME-AME 0.08, AME-ALE 0.03, PME-PME 0.10, PME-PLE 0.08, MOA length 0.28, anterior width 0.28, posterior width 0.28. Leg measurements: I 2.75 (0.90, 0.95, 0.50, 0.40), II 2.55 (0.80, 0.85, 0.50, 0.40), III 1.65 (0.55, 0.55, 0.30, 0.25), IV 2.25 (0.75, 0.75, 0.40, 0.35). Carapace pear-shaped, yellowish brown, cervical groove obvious, posterior eyes surrounded with black. Chelicerae yellowish brown, four promarginal teeth, lacking retromarginal teeth. Endites, labium yellow. Sternum yellow, with sparse, dark setae. Legs yellowish brown without annulations. Abdomen blunt anteriorly, pointed posteriorly, about 1.1 times wider than long, dorsum grayish yellow with irregular dark patches; venter grayish yellow with darker spots forming inconspicuous stripes. Spinnerets yellow.
Palp (Figs 1A-C View Figure 1 , 20A View Figure 20 ): median apophysis prominent, about 4/5 length of cymbium; embolus about two times length of cymbium, runs anti-clockwise, curved about 180° from its origin, with two thorns at base (embolic thorn, stipes extended), distal end pointed toward tip of median apophysis.
Female (paratype IZCAS-Ar42505, Fig. 2A-C, F-H View Figure 2 ). Total length 8.20. Carapace 4.20 long, 3.20 wide. Abdomen 5.10 long, 4.40 wide. Clypeus 0.15 high. Eye sizes and interdistances: AME 0.18, ALE 0.13, PME 0.18, PLE 0.15, AME-AME 0.22, AME-ALE 0.10, PME-PME 0.25, PME-PLE 0.18, MOA length 0.55, anterior width 0.55, posterior width 0.55. Leg measurements: I 12.00 (3.60, 4.50, 2.70, 1.20), II 11.30 (3.50, 4.00, 2.60, 1.20), III 7.30 (2.50, 2.60, 1.30, 0.90), IV 11.10 (3.50, 4.00, 2.50, 1.10). Carapace pear-shaped, yellow, cervical groove obvious, posterior eyes surrounded with black. Chelicerae yellow, four promarginal teeth, three retromarginal teeth. Endites and labium yellow. Sternum yellow, with sparse, dark setae. Legs: femur, patella, and basal 1/4 of tibia yellow, remaining 3/4 of tibia, metatarsus, and tarsus dark brown. Abdomen triangular in dorsal view, slightly longer than wide, yellow with nine transverse black stripes; venter yellow with dozens of white spots medially.
Epigyne (Fig. 2A-C View Figure 2 ): wider than long, with narrow rim anteriorly and laterally, concave anteriorly; posterior lip hooked (see arrow in Fig. 2C View Figure 2 ); copulatory openings narrow, located posteriorly; copulatory ducts shorter than spermatheca; spermathecae oval.
Variation
. Total length: ♂♂ 1.75-2.25; ♀♀ 8.2-10.80.
Distribution
. China (Yunnan).
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.