Otacilia xuning 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 : 53

Otacilia xuning Lin & Li , sp. nov. ( Figs 42 , 48B )

Etymology. The species is named after Xu Ning, one of the 108 outlaws in the classical Chinese literature Outlaws of the Marsh; noun in apposition.

Diagnosis. The new species is similar to O. curvata Jin, Fu, Yin & Zhang, 2016 by the longitudinal copulatory ducts being close together. However, the new species can be distinguished from O. curvata by the oval spermathecae (vs. Csharped in O. curvata ).

Description. Female (holotype). Total length 3.59; carapace 1.43 long, 1.30 wide, opisthosoma 2.16 long, 1.59 wide. Eye sizes and interdistances: AME 0.07, ALE 0.08, PME 0.07, PLE 0.07, AME–AME 0.04, AME–ALE 0.02, PME–PME 0.11, PME–PLE 0.06, AME–PME 0.09, ALE–PLE 0.09. Chelicerae with two promarginal and seven retromarginal teeth. Leg measurements: I 5.14 (1.41, 1.95, 1.21, 0.57), II 4.36 (1.17, 1.54, 1.05, 0.60), III 3.80 (1.02, 1.15, 1.01, 0.62), IV 5.47 (1.52, 1.62, 1.55, 0.78). Leg spination: I femur 3pv, 2d, tibia 7-7v, metatarsus 4-4v; II femur 2pv, 1d, tibia 6-6v, metatarsus 4-4v, III femur 1d, IV femur 1d.

Coloration ( Fig. 48B ). Carapace brown, middle yellow. Chelicerae, endites and labium brown. Sternum yellow-brown. Legs paler yellow with black annulations. Opisthosoma oval, dorsum dark grey, with pairs of large white spots, ventrum grey. Spinnerets yellow.

Epigyne ( Fig. 42 ). Epigynal plate rectangular, curved ventrally. Copulatory openings situated centrally, obvious. Copulatory ducts longitudinal, thick. Bursae large, almost oval, covering nearly 2/3 of epigynal plate. Glandular appendages inconspicuous. Spermathecae oval. Fertilization ducts directed at clock 2:00 position from spermathecae.

Male. Unknown.

Material examined. Holotype ♀ (IZCAS-Ar43966), Vietnam: Vinh Phuc, Tam Dao National Park, Natural Forest , 6 May 2003, Dinh-Sac Pham leg.

Distribution. Known only from the type locality.

Figures

Figure 42. Otacilia xuning Lin & Li, sp. nov., holotype female. A. Epigyne, ventral view; B. Vulva, dorsal view.Abbreviations: B— bursa; CD—copulatory duct; CO—copulatory opening; FD—fertilization duct; S—spermatheca. Scale bars=0.1mm.

Figure 48. Habitus of Phrurolithidae species, male (A, C) and female (B, D) dorsal view. A. Otacilia wusong Lin & Li, sp. nov.; B. O. xuning Lin & Li, sp. nov.; C–D. Xiaoliguang huarong Lin & Li, sp. nov. Scale bars=0.5mm.