Borboropactus nanda Lin & Li, 2023

Lin, Yejie, Li, Shuqiang & Pham, Dinh-Sac, 2023, Taxonomic notes on some spider species (Arachnida: Araneae) from China and Vietnam, Zoological Systematics 48 (1), pp. 1-99 : 66-69

Borboropactus nanda Lin & Li , sp. nov. ( Figs 58–60 , 69A–B )

Etymology. The species is named after the short name for Nanjing University in Chinese Pinyin, where the collector studied; noun in apposition.

Diagnosis. The new species is similar to B. bituberculatus Simon, 1884 (see Tang & Li, 2010a) by the male embolic base with a tooth, the similar shape of the conductor and the epigynum with epigynal teeth and a hood. However, the new species can be distinguished by the embolus coiling 900° (vs. 540° in B. bituberculatus ) and the tegular apophysis as long as wide (vs. wider than long in B. bituberculatus ). In the female, the ratio of the length of the septum to the width of the septum is almost 1: 2 (vs. 1: 3 in B. bituberculatus ), and the copulatory ducts have three turns (vs. two turns in B. bituberculatus ).

Description. Male (holotype). Total length 9.44; carapace 4.79 long, 4.17 wide, opisthosoma 4.65 long, 3.34 wide. Eye sizes and interdistances: AME 0.18, ALE 0.20, PME 0.16, PLE 0.22, AME–AME 0.14, AME–ALE 0.24, PME–PME 0.18, PME–PLE 0.41, AME–PME 0.26, ALE–PLE 0.21. Chelicerae with six promarginal and four retromarginal teeth. Leg measurements: I lost, II 11.36 (3.60, 4.44, 2.24, 1.08), III 11.01 (3.17, 4.13, 2.43, 1.28), IV 10.19 (3.07, 3.67, 2.27, 1.18).

Coloration ( Fig. 69A ). Carapace dark red-brown, covered with short white setae. Chelicera, endites, labium dark brown. Sternum yellow-brown. Legs brown with white setae. Opisthosoma pentagonal, dark brown with numerous yellow-brown spots, covered with short, clavate setae, ventrum yellow.

Palp ( Fig. 58 ). Retrolateral tibial apophysis triangular, longer than wide. Tegular apophysis at middle of bulb, oval, with hood. Conductor lamellate, membranous, half encloses terminus of embolus. Embolus long and slender, basally with an apophysis, coiling 900°.

Female (IZCAS-Ar43977). Total length 9.45; carapace 4.55 long, 3.98 wide, opisthosoma 4.90 long, 3.55 wide. Eye sizes and interdistances: AME 0.14, ALE 0.17, PME 0.14, PLE 0.14, AME–AME 0.17, AME–ALE 0.29, PME–PME 0.25, PME–PLE 0.39, AME–PME 0.29, ALE–PLE 0.27. Chelicerae with five promarginal and four retromarginal teeth. Leg measurements: I 12.26 (3.90, 5.55, 1.94, 0.87), II 8.85 (2.77, 3.57, 1.63, 0.88), III, IV lost.

Coloration ( Fig. 69B ). Similar to that of male except paler.

Epigyne ( Fig. 59 ). Septum with an oval anterior hood, vase shaped. Epigynal teeth paired, arising bilaterally, basally expanded. Copulatory ducts long, wider than spermathecae. Spermathecae twisted, convoluted. Fertilization ducts tapering.

Material examined. Holotype ♂ (IZCAS-Ar43976), China: Yunnan, Pu'er , Jiangcheng County, 19–24 July 2022, Fan Gao leg. Paratype. 1♀ (IZCAS-Ar43977), same data as holotype .

Distribution. Known only from the type locality.

Figures

Figure 58. Borboropactus nanda Lin & Li, sp. nov., holotype male. A. Prolateral view; B. Ventral view; C. Retrolateral view. Abbreviations: C—conductor; E—embolus; RTA—retrolateral tibial apophysis; TA—tegular apophysis. Scale bars=0.3mm.

Figure 59. Borboropactus nanda Lin & Li, sp. nov., paratype female.A. Epigyne, ventral view; B. Vulva, dorsal view.Abbreviations: A—atrium; CD—copulatory duct; CO—copulatory opening; ET—epigynal tooth; FD—fertilization duct; H—hood; S—spermatheca; Se—septum. Scale bars=0.3mm.

Figure 60. Borboropactus nanda Lin & Li, sp. nov., alive.A. Holotype male; B. Paratype female. Photoed by Fan Gao.

Figure 69. Habitus, dorsal view, male (A, C, E, G, I) and female (B, D, F, H). A–B. Borboropactus nanda Lin & Li, sp. nov.; C–D. Cozyptila haocongi Lin & Li, sp. nov.; E–F. Lysiteles huyilinae Lin & Li, sp. nov.; G–H. Massuria daizong Lin & Li, sp. nov.; I. Zametopina wanliae Lin & Li, sp. nov. Scale bars: A–B, H=1.0mm; C–G, I=0.5mm.