Yaginumaella qianlei C. Wang, Mi & Li, 2025

Wang, Cheng, Wang, Ying, Mi, Xiaoqi & Li, Shuqiang, 2025, Description of two new genera and seven new species of Plexippina Simon, 1901 (Araneae, Salticidae, Plexippini) from Southwest China, with a review of Yaginumaella Prószyński, 1979, ZooKeys 1257, pp. 215-247 : 215-247

Yaginumaella qianlei C. Wang, Mi & Li sp. nov.

Figs 11 , 12

Type material.

Holotype • ♂ ( TRU -JS 0846 ), China: Sichuan: Jiulong County, Wuxuhai ( 29°6.91'N, 101°24.04'E, ca 3,470 m), 1. ix. 2020, Q. L. Lu leg. Paratypes • 1 ♂ 1 ♀ ( TRU -JS 0847 –0848), same data as for holotype .

Diagnosis.

The male of Yaginumaella qianlei sp. nov. is unique for having a triangular process medially on the retrolateral cymbial margin. It somewhat resembles that of Y. pulchella Li, Wang, Irfan & Peng, 2018 , comb. rest. in having a similar palpal structure, but it differs in: 1) the tegulum is almost 1.16 × longer than wide in ventral view (Fig. 11 B ) vs ~ 1.5 × longer than wide in Y. pulchella ( Li et al. 2018: figs 1 B, 2 A); 2) the retrolateral tibial apophysis is slightly curved inward in retrolateral view (Fig. 11 C ) vs straight in Y. pulchella ( Li et al. 2018: figs 1 C, 2 B). The female of this new species resembles that of Y. medvedevi Prószyński, 1979 in having broad epigynal hoods, but can be easily distinguished by the epigynal hoods are far away from the atrium (Fig. 12 A ) vs touching the lowest margin of the atrium in Y. medvedevi ( Prószyński 1979: fig. 318).

Description.

Male (Figs 11 A – C , 12 C, E – G ). Total length 4.12. Cephalothorax 1.81 long, 1.41 wide. Abdomen 2.18 long, 1.52 wide. Eye sizes and inter distances: AME 0.36, ALE 0.23, PLE 0.21, AERW 1.14, PERW 1.09, EFL 0.74. Legs: I 3.46 (1.00, 0.63, 0.80, 0.55, 0.48), II 2.99 (0.95, 0.53, 0.63, 0.50, 0.38), III 3.18 (1.00, 0.45, 0.63, 0.65, 0.45), IV (1.10, 0.50, 0.75, missing, missing). Carapace mainly dark, covered with dark golden and pale setae of various lengths, with longitudinal, central, pale, gradually narrowed stripe extending from anterior area of fovea to distal end; fovea dark red. Chelicerae with typical dentition. Endites with disto-inner portions and bearing dense dark setae on disto-inner margins. Labium tapered from base, with pale distal end. Sternum mainly green-brown except with centrally pale yellow, with straight anterior edge. Legs pale to red brown, with dark irregular patches. Dorsum of abdomen dark laterally and setose, with central, irregular pale patch; venter mainly pale, with dark dots and central, longitudinal, patch extending across whole surface.

Palp (Fig. 11 A – C ): tibia slightly wider than long, with strongly sclerotized, tapered retrolateral apophysis slightly curved inward distally and pointed apically; cymbium somewhat longer than wide, with sub-triangular process located on median portion of retrolateral side; tegulum swollen medioposteriorly, with blunt posterior lobe; embolus arises at ca 9 o′clock position, curved at proximal and then antero-retrolaterally extending to rather pointed tip directed towards ca 1: 30 o′clock position.

Female (Fig. 12 A, B, D ). Total length 4.37. Cephalothorax 1.79 long, 1.40 wide. Abdomen 2.46 long, 1.69 wide. Eye sizes and inter distances: AME 0.36, ALE 0.23, PLE 0.21, AERW 1.14, PERW 1.17, EFL 0.80. Legs: I 2.89 (0.88, 0.50, 0.63, 0.45, 0.43), II 2.71 (0.85, 0.48, 0.60, 0.40, 0.38), III 3.21 (1.00, 0.50, 0.65, 0.63, 0.43), IV 3.82 (1.13, 0.55, 0.88, 0.83, 0.43). Habitus (Fig. 12 D ) similar to that of male except pale in color, and longitudinal thoracic stripe much broader.

Epigyne (Fig. 12 A, B ): slightly wider than long, with pair of mediolateral hoods; copulatory openings slit-shaped, anteriorly located; copulatory ducts curved into C-shapes at origin, and then form folds and connect to spermathecae without distinct broader; fertilization ducts appear from anterior-most edges of spermathecae.

Distribution.

Known only from the type locality in Sichuan, China (Fig. 2 ).

Etymology.

The specific name is after the collector, Mr Qianle Lu; noun (name) in genitive case.

Figures

Figure 2. Geographical records of the new species.

Figure 11. Male palp of Yaginumaella qianlei sp. nov., holotype (TRU - JS 0846). A. Palp, prolateral; B. Ditto, ventral; C. Ditto, retrolateral. Abbreviations: E = embolus, RTA = retrolateral tibial apophysis, PL = posterior tegular lobe, SD = sperm duct. Scale bars: 0.1 mm.

Figure 12. Yaginumaella qianlei sp. nov., male holotype (TRU - JS 0846) (C, E – G) and female paratype (TRU - JS 0848) (A, B, D). A. Epigyne, ventral; B. Vulva, dorsal; C, D. Habitus, dorsal; E. Ditto, ventral; F. Carapace, frontal G. Chelicera, posterior. Abbreviations: CD = copulatory duct, CO = copulatory opening, FD = fertilization duct, H = epigynal hood, S = spermatheca. Scale bars: 0.1 mm (A, B, G); 0.5 mm (C – F).