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

Figs 7 , 8

Type material.

Holotype • ♂ ( TRU -JS 0839 ), China: Yunnan: Kunming City, Guandu District, Shajin Village ( 25°5.09'N, 103°1.02'E, ca 2,340 m), 20. x. 2023; H. Qiu leg. Paratypes • 1 ♀ ( TRU -JS 0840 ), same data as for holotype ; • 1 ♂ ( IZCAS -Ar 45884 ), Sichuan, Miyi County, Binggu Township, Maidichong Village ( 26°40.76'N, 102°3.75'E, ca 2,240 m), 7. vi. 2024, X. Q. Zhang, Y. Wang, and Q. Z. Meng leg.

Diagnosis.

The male of Yaginumaella daolangi sp. nov. resembles that of Y. ususudi ( Yaginuma, 1972) in having a thick embolus originating from ca 9 o′clock position, but can be easily distinguished by the retrolateral tibial apophysis is curved towards retrolateral side distally (Fig. 7 B, C ) vs almost straight in Y. ususudi ( Yaginuma 1972: fig. 10). The female of this new species can be easily distinguished from other congeners by postero-ventrally opened epigynal hood (Fig. 8 A ) vs epigynal hood posteriorly or posterolaterally opened in others (see the drawings of the congeners on Metzner 2025).

Description.

Male (Figs 7 A – C , 8 C, D, F, G ). Total length 4.65. Cephalothorax 2.23 long, 1.68 wide. Abdomen 2.40 long, 1.39 wide. Eye sizes and inter distances: AME 0.43, ALE 0.26, PLE 0.24, AERW 1.45, PERW 1.39, EFL 0.90. Legs: I 4.61 (1.43, 0.85, 1.10, 0.75, 0.48), II 3.94 (1.25, 0.73, 0.85, 0.63, 0.48), III 4.57 (1.48, 0.68, 0.93, 0.93, 0.55), IV 4.87 (1.48, 0.68, 1.08, 1.08, 0.55). Carapace elevated, orange to dark, covered with sparse, long, dark setae on cephalic region, dense white setae behind PMEs, with pair of lateral submarginal white setal bands, and longitudinal, central yellow stripe extending across thorax; fovea red-brown, longitudinal. Chelicerae orange-yellow, with type dentition. Endites yellow with pale disto-inner portions, covered with clusters of dense dark setae on inner distal margins. Labium slightly darker than endites. Sternum yellow to brown, with truncated anterior edge and tapered distal portion, ~ 1.3 × longer than wide. Legs setose, spiny. Dorsum of abdomen mainly dark and spotted, covered with sparse, long, dark setae and dense, shorter, dark and pale setae, with central, gradually broadened, longitudinal yellow stripe followed by transverse, sub-triangular yellow patch; venter colored as dorsum, with dotted lines.

Palp (Fig. 7 A – C ): tibia slightly wider than long in ventral view; retrolateral tibial apophysis strongly sclerotized, straight extending until curved retrolaterally at distal 1 / 3, with rather pointed tip; cymbium somewhat longer than wide, with truncated anterior edge; tegulum elongate-oval, with postero-prolaterally extended posterior lobe; embolus originates from ca 9 o′clock position, curved into almost C-shaped, abruptly narrowed and tapered at distal 1 / 4, with pointed tip directed towards ca 1: 30 o′clock position.

Female (Fig. 8 A, B, E ). Total length 4.87. Cephalothorax 2.24 long, 1.69 wide. Abdomen 2.65 long, 1.69 wide. Eye sizes and inter distances: AME 0.44, ALE 0.26, PLE 0.24, AERW 1.46, PERW 1.46, EFL 0.96. Legs: I 4.01 (1.23, 0.80, 0.90, 0.63, 0.45), II 3.81 (1.18, 0.75, 0.85, 0.60, 0.43), III 4.50 (1.50, 0.70, 0.95, 0.85, 0.50), IV 4.91 (1.50, 0.68, 1.13, 1.10, 0.50). Habitus (Fig. 8 E ) similar to that of male.

Epigyne (Fig. 8 A, B ): longer than wide, with pair of mediolateral hoods opened posteroventrally; atrium almost inverted trapeziform, ~ 1 / 2 epigynal length; copulatory openings inclined, slit-shaped; copulatory ducts run posteriorly with curves until slightly enlarged and forming folds at posterior portions, and then extend contrary with curves to connect to spermathecae without distinct borders; fertilization ducts extending almost transversely.

Distribution.

China ( Sichuan, Yunnan) (Fig. 2 ).

Etymology.

The specific name is after the famous Chinese singer, Daolang (real name Lin Luo); noun (name) in genitive case.

Figures

Figure 2. Geographical records of the new species.

Figure 7. Male palp of Yaginumaella daolangi sp. nov., holotype (TRU - JS 0839). 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 8. Yaginumaella daolangi sp. nov., male holotype (TRU - JS 0839) (C, D, F, G) and female paratype (TRU - JS 0840) (A, B, E). A. Epigyne, ventral; B. Vulva, dorsal; C, E. Habitus, dorsal; D. Ditto, ventral; F. Carapace, frontal; G. Chelicera, posterior. Abbreviations: At = atrium, 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).