Yaginumanis yuanwencai K. Liu, 2025

Liu, Bin-lu, Yao, Yan-bin, Cai, Zi-han, Wang, Zhong-jing & Liu, Ke-ke, 2025, Diversity of jumping spiders (Araneae, Salticidae) in the Jinggangshan National Nature Reserve, Jiangxi, China, ZooKeys 1239, pp. 183-212 : 183-212

Yaginumanis yuanwencai K. Liu sp. nov.

Figs 10 , 11 , 12 D – F Common name: 袁文才后雅蛛

Type material.

Holotype ♂, China • Jiangxi Province: Ji’an County, Jinggangshan County Level City, Jinggang Mountain National Nature Reserve, Ciping Town, Longtan Scenic Spot , 26°35'24"N, 114°8'16.8"E, 939 m a. s. l., 1 June 2014, Ke-ke Liu, Yu-bao Tang, Ze-yuan Meng, Xiao-ping Huang, Zhi-wu Chen, and Zhan-feng Wang leg. (Sal- 097, ASM-JGSU) . Paratypes: • 1 ♀, Dajing Village, Dajing Forest Farm , 26°34'12"N, 114°7'19.2"E, 956 m a. s. l., 27 August 2015, Zhi-wu Chen, Chun-qi Dong, Ji-hao Zhang, etc. leg., other data as same as holotype (Sal- 171, ASM-JGSU) ; • 1 ♀, Dajing Village, Jiangjun Park , 26°33'54"N, 114°7'30"E, 927 m a. s. l., 26 August 2015, other data as same as previous data (Sal- 171, ASM-JGSU) ; • 2 ♀, Luofu Town, Xiangzhou Village , 26°37'8.4"N, 114°16'12"E, 922 m a. s. l., 13 July 2015, Ce Xu, Shi-cong He, Ze-yuan Meng, Sha Wu, Yi-fan Zhao and Ke-ke Liu leg., other data as same as previous data (Sal- 171, ASM-JGSU) .

Diagnosis.

Male is similar to that of Yaginumanis sexdentatus (Yaginuma, 1967) (cf. Fig. 10 C-F and Bohdanowicz and Prószyński 1987: 46, figs 1–3) in having the fan-shaped ventral tibial apophysis and finger-like retrolateral tibial apophysis with a curved basal apophysis, but can be easily distinguished from it by the broad strongly curved embolus (vs relatively thin and only slightly curved in Y. sexdentatus ), the band-like conductor (vs oval in Y. sexdentatus ), and the nearly square tegular apophysis (vs triangular in Y. sexdentatus ) in ventral view. The female of this species resembles that of Y. sexdentatus (cf. Fig. 11 C, D and Bohdanowicz and Prószyński 1987: 46, figs 4, 5) in having the spermathecae with a constriction medially, but can be easily distinguished from it by the large atrium covering more than 1 / 2 of the epigynal plate (vs small, <1 / 3 of epigynal plate in Y. sexdentatus ), and the distinct broad copulatory ducts (vs indistinct in Y. sexdentatus ). The female of this species also resembles that of Y. wanlessi Zhang & Li, 2005 (cf. Fig. 11 C, D and Zhang and Li 2005: 227, fig. 5 D, E) in having a thickened arc-shaped margin of the copulatory openings, but can be easily differentiated by the spermathecae having a distinct constriction (vs absent in Y. wanlessi ).

Description.

Male (holotype). Habitus (Fig. 10 A, B ). Total length 7.56. Carapace (Fig. 10 A ) brown to dark, medially with a slender dark fovea, the broad V-shaped brown mark, lateral and posterior margins covered by abundant white feathery setae, length 3.45, width 2.61. Eyes (Fig. 10 A ) diameters and interdistances: AME 0.56, ALE 0.32, PME 0.23, PLE 0.29; AME – AME 0.19, ALE - AME 0.21, PME – PME 1.39, PLE - PME 0.39, AME - PME 0.30, AME - PLE 0.99, ALE - ALE 1.37, PLE - PLE 1.43, ALE - PLE 0.79. MOA 0.93 long, front width 1.18, back width 1.72. Chelicerae (Fig. 10 B ) yellow to brown, with three retromarginal teeth and five retromarginal tooth. Endites yellow, longer than wide. Labium yellow to brown, wider than long. Sternum yellow to brown, longer than wide, with dense long setae, laterally with three sclerotized serration-shaped extensions directed at coxae I-III. Legs (Fig. 10 A, B ) yellow, with brown annulations on femora; measurements: I 8.13 (2.33, 1.1, 1.99, 1.83, 0.88); II 7.77 (2.34, 1, 1.68, 1.99, 0.76); III 7.4 (2.27, 0.99, 1.77, 1.86, 0.51); IV 10.48 (2.84, 1.12, 2.46, 2.98, 1.08); spination: I Fe d 1-1 - 1, pr 0-0 - 2, rt 0-0 - 2; Pa pr 1-0 - 1, rt 1-0 - 1; Ti d 1-1 - 0, pr 1-0 - 1, rt 1-0 - 1; pv 1-1 - 1, rv 1-1 - 1; Met d 1-0 - 1, pv 1-1 - 1, rv 1-1 - 1; II Fe d 1-1 - 1, pr 0-0 - 2, rt 0-0 - 2; Pa pr 1-0 - 1, rt 1-0 - 1; Ti d 1-1 - 0, pr 1-0 - 1, rt 1-0 - 1, pv 1-1 - 1, rv 1-1 - 1; Met pr 1-1 - 1, rt 1-1 - 1, pv 1-0 - 1, rv 1-0 - 1; III Fe d 1-1 - 1, pr 0-1 - 2, rt 0-1 - 2; Pa pr 1-0 - 1, rt 1-0 - 1; Ti d 1-0 - 1, pr 1-0 - 1, rt 1-0 - 1, pv 1-1 - 1, rv 1-1 - 1; Met pr 1-1 - 1, rt 1-1 - 1, pv 1-0 - 1, rv 1-0 - 1; IV Fe d 1-1 - 1, pr 0-0 - 2, rt 0-0 - 2; Pa pr 1-0 - 1, rt 1-0 - 1; Ti d 1-0 - 1, pr 1-0 - 1, rt 1-0 - 1, pv 1-1 - 1, rv 1-1 - 1; Met pr 1-1 - 1, rt 1-1 - 1, pv 1-0 - 1, rv 1-0 - 1. Abdomen (Fig. 10 A, B ) yellow to dark brown, medially with pale band, laterally with dense black setae; venter yellow to brown, medially with a broad stripe, 4.08 long, 2.26 wide.

Palp (Figs 10 C-F , 12 D-F ). Ventral tibial apophysis thick, fan-shaped in ventral view, as long as tibia. Retrolateral tibial apophysis thick, finger-like, nearly 2 × longer than ventral tibial apophysis, with a large triangular basal apophysis and a blunt tip in ventral view. Sperm duct curved, arising from ~ 10 o’clock. Tegular apophysis triangular in ventro-retrolateral view, n-shaped in ventro-prolateral view. Conductor membranous, band-shaped, shorter than half of embolus. Embolus thick, longer than tegular length.

Female (paratype). Habitus (Fig. 11 A, B ). As in male, except as noted. Total length 7.08. Carapace (Fig. 11 A ), length 3.2, width 2.46. Eyes (Fig. 11 A ) diameters and interdistances: AME 0.49, ALE 0.3, PME 0.28, PLE 0.29; AME – AME 0.23, ALE - AME 0.24, PME – PME 1.35, PLE - PME 0.43, AME - PME 0.55, AME - PLE 1.31, ALE - ALE 1.41, PLE - PLE 1.43, ALE - PLE 1. MOA 1.07 long, front width 1.18, back width 1.72. Chelicerae (Fig. 11 B ) and endites with three retromarginal teeth and six retromarginal tooth. Sternum yellow, laterally with two sclerotized serration shaped extensions directed at coxae I-II. Legs measurements: I 7.08 (2.14, 1.14, 1.59, 1.39, 0.82); II 6.83 (2.13, 1.15, 1.49, 1.25, 0.81); III 6.71 (1.97, 0.95, 1.48, 1.4, 0.91); IV 8.89 (2.44, 1.01, 2.25, 2.29, 0.9); spination (Fig. 11 A, B ): I Fe d 1-1 - 1, pr 0-0 - 2, rt 0-0 - 1; Pa pr 0-1 - 0; Ti d 1-0 - 1, pv 1-1 - 1, rv 1-1 - 1; Met pv 1-1 - 1, rv 1-1 - 1; II Fe d 1-1 - 1, pr 0-0 - 2, rt 0-0 - 2; Pa pr 0-0 - 1, rt 0-0 - 1; Ti pr 1-0 - 1, pv 1-1 - 1, rv 1-1 - 1; Met pv 1-1 - 1, rv 1-1 - 1; III Fe d 1-1 - 1, pr 1-0 - 2, rt 1-0 - 2; Pa pr 0-1 - 0, rt 0-1 - 0; Ti d 1-0 - 0, pr 1-0 - 1, rt 1-0 - 1, pv 1-1 - 1, rv 1-1 - 1; Met pr 1-1 - 1, rt 1-1 - 1, pv 1-0 - 1, rv 1-0 - 1; IV Fe d 1-1 - 1, pr 1-0 - 1, rt 1-0 - 1; Pa pr 0-1 - 0, rt 0-1 - 0; Ti d 1-0 - 0, pr 1-0 - 1, rt 1-0 - 1, pv 1-1 - 1, rv 1-1 - 1; Met pr 1-1 - 1, rt 1-1 - 1, pv 1-0 - 1, rv 1-0 - 1. Abdomen (Fig. 11 A, B ) 3.88 long, 2.23 wide; venter with a trident-shaped stripe.

Epigyne (Fig. 11 C, D ). Atrium oval, separated by a median septum, with a thickened margin. Copulatory openings oval, located at the antero-lateral part of atrium. Copulatory ducts short, touching. Spermathecae bowling-ball-like, slightly separated. Fertilization ducts short, directed anterolaterally.

Distribution.

Known only from the type locality in Jiangxi Province, China (Fig. 13 ).

Etymology.

The species is named in honor of Yuan Wencai, also referring one of the prominent figures in the struggle in Jinggangshan; noun in apposition.

Figures

Figure 10. Yaginumanis yuanwencai sp. nov., male holotype A habitus, dorsal view B same, ventral view C palp, prolatero-ventral view D same, ventral view E same, ventro-retrolateral view F same, dorsal view. Abbreviations: Con – conductor, Em – embolus, RTA – retrolateral tibial apophysis, SD – sperm duct, TA – tegular apophysis, VTA – ventral tibial apophysis. Scale bars: 0.5 mm (A, B); 0.2 mm (C – F).

Figure 11. Yaginumanis yuanwencai sp. nov., female paratype A habitus, dorsal view B same, ventral view C epigyne, ventral view D same, dorsal view. Abbreviations: At – atrium, CD – copulatory duct, CO – copulatory opening, FD – fertilization duct, MS – median septum, Spe – spermatheca. Scale bars: 0.5 mm (A, B); 0.1 mm (C, D).

Figure 12. SEMs of male palps A Charippus wangzuo sp. nov., male holotype, ventro-prolateral view B Orientattus chushu sp. nov., male holotype, ventral view C same, ventro-retrolateral view D Yaginumanis yuanwencai sp. nov., male holotype, ventro-prolateral view E same, ventral view F same, retrolatero-ventral view. Abbreviations: Con – conductor, Em – embolus, PL – posterior lobe, RTA – retrolateral tibial apophysis, TA – tegular apophysis, TF – tegular flap, VTA – ventral tibial apophysis.

Figure 13. The location of the Jinggangshan National Nature Reserve in China indicated by the large black dot.