Yaginumaella curvata, Li & Liu & Peng, 2024

Li, Song-Lin, Liu, Ping & Peng, Xian-Jin, 2024, Three new species of jumping spiders (Araneae, Salticidae) from Hunan, China, ZooKeys 1204, pp. 301-312 : 301-312

Yaginumaella curvata sp. nov.

Figs 4 , 5 , 6

Type material.

Holotype ♂ ( HNU-BMS- 1901 ), China, Hunan Prov., Chenzhou City, Guidong Co., Bamian Mountain National Nature Reserve , 25.975914 ° N, 113.708825 ° E, 1001 m, 15 Sept. 2019, Cheng Wang, Bo Lü and Xuan-Wei Zhou leg. ; paratypes: ♀ ( HNU-BMS- 2202 ), China, Hunan Prov., Chenzhou City, Guidong Co., Bamian Mountain National Nature Reserve , 25.975568 ° N, 113.705383 ° E, 1143 m, 19 Aug. 2022, Song-Lin Li, Peng Yong, Li-Fen Li, Yu-Chen Zhou, Zi-Yue Liu leg. ; 2 ♀ ( HNU-BMS- 2205 ), China, Hunan Prov., Chenzhou City, Guidong Co., Bamian Mountain National Nature Reserve , 25.986542 ° N, 113.705841 ° E, 1250 m, 22 Aug. 2022, Song-Lin Li, Peng Yong, Li-Fen Li, Yu-Chen Zhou, Zi-Yue Liu leg.

Etymology.

The specific epithet is derived from the Latin “ curvata ” (curved), referring to the curved retrolateral tibial apophysis, adjective.

Diagnosis.

The male of this new species is similar to that of Yaginumaella bulbosa Peng, Tang & Li, 2008 ( Peng et al. 2008: figs 26–28) in habitus and the curved RTA, but can be distinguished by: 1) cymbium longer than wide (Fig. 4 A ), while wider than long in Y. bulbosa (fig. 27); 2) length of RTA is about 1 / 3 of the palpal bulb (Fig. 4 B ), while about 1 / 2 of the palpal bulb in Y. bulbosa (fig. 28); 3) RTA only extended to the basal 1 / 6 position of cymbium in retrolateral view (Fig. 4 B ), while to the basal 1 / 2 position of cymbium in retrolateral view in Y. bulbosa (fig. 28); and 4) embolus originates at about 7: 00 o’clock position (Fig. 4 A ), while originates at about 9: 00 o’clock position in Y. bulbosa (fig. 27). The female of this new species is similar to that of Yaginumaella lushiensis Zhang & Zhu, 2007 ( Zhu and Zhang 2011: fig. 384 A, D, E) in the short and stout copulatory ducts and the shape of spermathecae, but can be distinguished by the following characters: 1) distance of copulatory openings as wide as the vulva (Fig. 4 C ), while about 1 / 3 width of the vulva in Y. lushiensis (fig. 384 D); 2) epigynal pockets located at the median portion of epigyne (Fig. 4 C ), while located on the anterior portion in Y. lushiensis (fig. 384 D); and 3) fertilisation duct about transverse (Fig. 4 D ), while oblique in Y. lushiensis (fig. 384 E).

Description.

Male (holotype) (Fig. 5 A, B ). Total length 5.14; carapace 2.60 long, 2.06 wide; abdomen 2.52 long, 1.59 wide. Carapace brown, with three longitudinal yellow stripes on the median and lateral margins, eye field and lateral margins covered with white setae. Fovea longitudinal, cervical and radial grooves distinct. Eye sizes and interdistances: AME 0.49, ALE 0.28, PME 0.08, PLE 0.21, AER 1.75, PER 1.65, EFL 0.78. Chelicerae light brown, promargin with two teeth, and retromargin with one tooth. Endites and labium light brown, distal end pale yellow. Sternum pale yellow. Legs yellow except for femora, patellae and tibiae of leg I brown. Measurements of legs: I 5.99 (1.76, 2.38, 1.17, 0.68), II 4.89 (1.59, 1.91, 0.67, 0.72), III 5.39 (1.70, 1.94, 1.14, 0.61), IV 5.50 (1.76, 1.79, 1.32, 0.63). Leg formula: 1432. Abdomen oval, dorsum with sparse long black hair, anterior margin black, the posterior median with two gray herringbone patterns and four chevrons; venter light yellow, with black maculation.

Palp (Fig. 4 A, B ). Embolus long and thin, originates at about 7: 00 o’clock position; tegular lobe folds to retrolateral side; retrolateral tibial apophysis curved towards dorsal side at right angle from the middle.

Female. (paratype) (Fig. 5 C, D ). Total length 4.94; carapace 2.74 long, 2.04 wide; abdomen 2.54 long, 1.63 wide. Eye sizes and interdistances: AME 0.41, ALE 0.27, PME 0.11, PLE 0.23, AER 1.81, PER 1.79, EFL 0.72. Chelicerae promargin with two teeth, retromargin with one tooth. Legs pale yellow. Measurements of legs: I 4.79 (1.63, 1.80, 0.76, 0.60), II 4.44 (1.71, 1.49, 0.69, 0.55), III 5.49 (1.82, 1.94, 1.08, 0.65), IV 5.23 (1.63, 1.87, 1.03, 0.70). Leg formula: 3412. Abdomen oval, dorsum black, with symmetric lighter yellowish central area, posterior portion covered with dense black and white long hairs; venter light yellow, with three longitudinal black stripes. Color darker than that in male.

Epigyne (Fig. 4 C, D ). Epigynal window oval, located at anterior portion of epigyne. Copulatory openings slit-shaped, located at the lower lateral margin of the epigynal window. Copulatory ducts short and stout. Spermathecae tubular and intertwined.

Distribution.

Known only from the type locality (Fig. 6 ).

GenBank accession number.

Paratype (( HNU-BMS- 2205 ): PP 786561.

Figures

Figure 4. Yaginumaella curvata sp. nov. A left palp, ventral view B ditto, retrolateral view C epigyne, ventral view D vulva, dorsal view. Scale bars: 0.2 mm.

Figure 5. Yaginumaella curvata sp. nov. A male holotype, habitus, dorsal view B ditto, ventral view C female paratype, habitus, dorsal view D ditto, ventral view. Scale bars: 1 mm.

Figure 6. Collection localities of Thiania bamian sp. nov., Thiania flacata sp. nov. and Yaginumaella curvata sp. nov.