Araneus mayanghe Mi & Wang, 2023
|
publication ID |
https://dx.doi.org/10.3897/zookeys.1160.101594 |
|
publication LSID |
lsid:zoobank.org:pub:25047ED1-4915-4DC4-AF72-3FD0BA7CDB5D |
|
persistent identifier |
https://treatment.plazi.org/id/0151AD54-FB49-424C-980D-21E4D80229DA |
|
taxon LSID |
lsid:zoobank.org:act:0151AD54-FB49-424C-980D-21E4D80229DA |
|
treatment provided by |
|
|
scientific name |
Araneus mayanghe Mi & Wang |
| status |
sp. nov. |
Araneus mayanghe Mi & Wang sp. nov.
Figs 3 View Figure 3 , 4 View Figure 4 , 9E-H View Figure 9 , 10 View Figure 10
Type material.
Holotype ♂ (TRU- Araneidae -147), China: Guizhou Province, Tongren City, Yanhe Tujia Autonomous County, Siqu Township, Dabao Village, Mayanghe National Nature Reserve (28°39.48'N, 108°12.80'E, ca 690 m), 19.IV.2022, X.Q. Mi et al. leg. Paratypes: 4♂10♀ (TRU- Araneidae -148-161), same data as for holotype.
Etymology.
The specific name is a noun in apposition and refers to the type locality.
Diagnosis.
The new species resembles A. ryukyuanus Tanikawa, 2001, A. tsurusakii Tanikawa, 2001, A. polydentatus Yin et al., 2007, and A. yuanminensis Yin, Wang, Xie & Peng, 1990 in appearance, but differs from A. ryukyuanus in having 1) the copulatory openings located on the posterior surface vs the ventral surface ( Tanikawa 2001: fig. 20); 2) the embolus long, reaching the base of the conductor vs short and not reaching the conductor ( Tanikawa 2001: fig. 21); and 3) the embolus somewhat S-shaped distally vs C-shaped ( Tanikawa 2001: fig. 21). It can be distinguished from A. tsurusakii in having 1) the epigyne scape almost straight or slightly twisted vs extremely twisted ( Tanikawa 2001: fig. 14); 2) the copulatory opening about ~0.8 × the median plate width vs ~0.33 × the median plate width ( Tanikawa 2001: fig. 15); and 3) the embolus somewhat S-shaped distally vs C-shaped ( Tanikawa 2001: figs 16-18). It differs from A. polydentatus in having 1) the epigyne scape almost straight vs S-shaped ( Yin et al. 2007: fig. 1g); 2) the embolus S-shaped distally vs straight ( Yin et al. 2007: fig. 1b); and 3) the embolus long, reaching the base of the conductor vs short and not reaching the conductor ( Yin et al. 2007: fig. 1b). It differs from A. yuanminensis in having 1) the copulatory openings located on the posterior surface vs on the ventral surface ( Yin et al. 1990: figs 66-68); 2) the spermathecae oval vs spherical ( Yin et al. 1990: fig. 68); and 3) the spinnerets at the posterior 1/3 of abdomen vs at the middle of abdomen ( Yin et al. 1990: fig. 65).
Description.
Male (holotype, Figs 3I, J View Figure 3 , 4A-D View Figure 4 , 9E-H View Figure 9 ; paratype TRU- Araneidae -148, Fig. 4E View Figure 4 ). Total length 4.00. Carapace 2.05 long, 1.80 wide. Abdomen 2.45 long, 1.65 wide. Clypeus 0.10 high. Eye sizes and interdistances: AME 0.08, ALE 0.08, PME 0.11, PLE 0.08, AME-AME 0.15, AME-ALE 0.23, PME-PME 0.10, PME-PLE 0.28, MOA length 0.30, anterior width 0.33, posterior width 0.33. Leg measurements: I 7.30 (2.30, 2.65, 1.60, 0.75), II 7.05 (2.15, 2.65, 1.55, 0.70), III 3.75 (1.10, 1.35, 0.80, 0.50), IV 5.35 (1.80, 2.00, 1.00, 0.55). Carapace pear-shaped, yellow with dark setae; posterior eyes with brown base. Cervical groove obvious; fovea longitudinal. Chelicerae yellow; four promarginal and three retromarginal teeth. Endites yellow with very narrow, dark anterior edge, with tooth-like process laterally. Labium triangular, yellow. Sternum cordiform, yellow with dark setae. Legs yellow to dark brown, without annuli; femur I with seven macrosetae; tibia I with 11 macrosetae; tibia II with 11 macrosetae; tibia III with 10 macrosetae, tibia IV with 11 macrosetae. Abdomen oval, blunt anteriorly and pointed posteriorly, ~1.5 × longer than wide, covered with gray setae; dorsum yellow with a large terminal dark patch and two pairs of lateral dark patches; venter grayish yellow. Spinnerets dark brown.
Pedipalp (Fig. 4 View Figure 4 ) with basal femoral protrusion; patella with two bristles; median apophysis large, bifurcated, dorsal ramus long, curved, pointed at tip; ventral ramus short with serrated tip; embolus stout at base, slender and twisted into an S-shape distally, without cap; conductor subquadrate in retrolateral view, thickened at tip, with spur at base; terminal apophysis weakly sclerotized, digitiform; subterminal apophysis large, heavily sclerotized, concave medially.
Female (paratype TRU- Araneidae -149, Fig. 3A, C-H View Figure 3 ; paratype TRU- Araneidae -150, Fig. 3B View Figure 3 ). Total length 4.95. Carapace 2.25 long, 1.60 wide. Abdomen 3.45 long, 2.65 wide. Clypeus 0.08 high. Eye sizes and interdistances: AME 0.09, ALE 0.09, PME 0.13, PLE 0.09, AME-AME 0.15, AME-ALE 0.30, PME-PME 0.15, PME-PLE 0.33, MOA length 0.33, anterior width 0.30, posterior width 0.35. Leg measurements: I 7.70 (2.40, 2.90, 1.65, 0.75), II 6.85 (2.10, 2.60, 1.45, 0.70), III 4.15 (1.35, 1.45, 0.85, 0.50), IV 6.10 (2.00, 2.20, 1.35, 0.55). Habitus similar to that of male but pointed anteriorly and abdominal patches much paler.
Epigyne (Fig. 3A, C-E View Figure 3 ) scape almost straight, distally spoon-shaped; copulatory openings on posterior surface; copulatory ducts twisted, longer than spermatheca; spermathecae oval, not touching.
Variation.
Total length: ♂♂ 3.55-4.00 (n = 5); ♀♀ 4.15-5.55 (n = 10). Scape of female paratype TRU- Araneidae -149 slightly twisted into an S-shape (Fig. 3B View Figure 3 ). Abdomen of male paratype TRU- Araneidae -151 dorsally with a large, grayish brown, triangular patch.
Distribution.
Known only from the type locality (Guizhou).
Comment.
The oval, posteriorly pointed abdomen and the long, distally spoon-shaped scape indicate that the new species belongs to the A. sturmi group. Based on the similarities of the somatic morphology and genitalia, the new species is most similar to A. polydentatus , A. ryukyuanus , A. tsurusakii , A. viperifer , and A. yuanminensis .
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.