Otacilia yongjia, Mu, Yannan & Zhang, Feng, 2023

Mu, Yannan & Zhang, Feng, 2023, Further additions to the guardstone spider fauna from China (Araneae: Phrurolithidae), Zootaxa 5338 (1), pp. 1-104 : 69-73

Otacilia yongjia sp. nov. (ƏṘẦŴṚff)

Figs 55–57

Type material. Holotype ♁, CHINA: Sichuan Province: Guangyuan City, Qingchuan County, Qingxi Town , Yongjiawan Village (32°25′59.52″N, 104°45′35.20″E, 1362 m a.s.l.), 16 Oct. 2020, leg. Zhisheng Zhang.

Paratypes: 1 ♁ 3 ♀, with same data as holotype .

Etymology. The species name is derived from the type locality; noun in apposition.

Diagnosis. This new species resembles O. horizon sp. nov. in also having a transverse embolus, but can be recognized by: 1) the smaller retrolateral tibial apophysis (vs large, cf. Fig. 56D and Fig. 34D ), 2) the large dorsal tibial apophysis (vs without dorsal tibial apophysis, cf. Fig. 56D and Fig. 34D ), 3) the copulatory openings extending posteriorly (vs extending anteriorly, cf. Fig. 56E and Fig. 34E ), 4) the thinner copulatory ducts, extending anteriorly (vs extending posteriorly, cf. Fig. 56E and Fig. 34E ), and 5) the distinctly separated connecting tubes (vs close to each other, cf. Fig. 56F and Fig. 34F ).

Description. Male (Holotype): total length 2.89, carapace 1.45 long, 1.27 wide; abdomen 1.44 long, 0.93 wide. Eye sizes and interdistances: AME 0.10, ALE 0.10, PME 0.08, PLE 0.09; AME–AME 0.03, AME–ALE 0.01, ALE–ALE 0.22, PME–PME 0.12, PME–PLE 0.06, PLE–PLE 0.39, ALE–PLE 0.08. EAW 0.52, CRW 0.65, EAW/CRW 0.80, CRW/CW 0.51. MOA 0.26 long, anterior width 0.21, posterior width 0.28. CH 0.13, CH /AME 1.30. Labium 0.17 long, 0.20 wide. Sternum 0.83 long, 0.75 wide. Leg measurements: Ⅰ 5.77 (1.46, 0.52, 1.70, 1.38, 0.71), II 4.70 (1.23, 0.48, 1.22, 1.11, 0.66), III 4.02 (1.07, 0.44, 0.82, 1.08, 0.61), IV 6.09 (1.69, 0.47, 1.44, 1.66, 0.83). Spination: femora I–IV d 1, femur I pl 4, femur II pl 2, tibia Ⅰ pv 7 rv 8, tibia II pv 6 rv 6, metatarsus Ⅰ pv 4 rv 4, metatarsus II pv 4 rv 3.

Coloration. Carapace yellow-brown, with several shapes resembling flowing water droplets beside fovea. Abdomen gray, with narrow dorsal scutum anteriorly, flanks black, posterior with four black transverse stripes ( Fig. 55A, B ). Legs yellow.

Palp as in Figs 56A–D , 57A–C . Femoral apophysis well developed, located at middle of femur. Tibia short, about half length of femur. Retrolateral tibial apophysis short but strong, tip blunt; dorsal tibial apophysis long, extending to middle parts of retrolateral margin of cymbium. Bulb large, tegulum wider than cymbium, pyriform; tegular apophysis absent. Sperm duct distinct, tapering from retrolateral side of tegulum to embolus. Embolus tapering from base to tip, transverse, extending towards retrolateral of cymbium. Conductor absent.

Female (Paratype): total length 3.36, carapace 1.50 long, 1.30 wide; abdomen 1.86 long, 1.36 wide. Eye sizes and interdistances: AME 0.10, ALE 0.09, PME 0.08, PLE 0.09; AME–AME 0.03, AME–ALE 0.01, ALE–ALE 0.24, PME–PME 0.09, PME–PLE 0.06, PLE–PLE 0.38, ALE–PLE 0.09. EAW 0.51, CRW 0.71, EAW/CRW 0.72, CRW/CW 0.55. MOA 0.26 long, anterior width 0.23, posterior width 0.27. CH 0.16, CH /AME 1.60. Labium 0.13 long, 0.22 wide. Sternum 0.91 long, 0.84 wide. Leg measurements: Ⅰ 5.84 (1.48, 0.57, 1.75, 1.38, 0.66), II 4.66 (1.22, 0.51, 1.19, 1.13, 0.61), III 3.99 (1.04, 0.49, 0.86, 1.02, 0.58), IV 6.25 (1.67, 0.56, 1.45, 1.76, 0.81). Spination: femur I d 2 pl 4, femora II–IV d 1, femur II pl 2, tibia Ⅰ pv 8 rv 8, tibia II pv 8 rv 6, metatarsus Ⅰ pv 4 rv 4, metatarsus II pv 4 rv 3. Other characters as in male, except body larger, color darker and dorsal scutum absent ( Fig. 55C, D ).

Epigyne as in Figs 56E–F , 57D–E . Epigynal plate sclerotized, with shallow depression centrally. Median septum wide. Copulatory openings small and round, towards posteriorly, separated by median septum. Copulatory ducts short, extending anteriorly and connecting with bursa. Connecting tubes thin and straight. Glandular appendages absent. Bursa oval. Spermathecae round, separated by about half their diameter. Fertilization ducts located at anterior margin of spermathecae.

Distribution. China (Sichuan Province).

Figures

FIGURE 34. Habitus of Otacilia spina sp. nov.: A. Male holotype, dorsal view; B. Same, ventral view; C. Female paratype, dorsal view; D. Same, ventral view.

FIGURE 55. Habitus of Otacilia yongjia sp. nov.: A. Male holotype, dorsal view; B. Same, ventral view; C. Female paratype, dorsal view; D. Same, ventral view.

FIGURE 56. Copulatory organs of Otacilia yongjia sp. nov.: A. Male left palp, prolateral view; B. Same, retrolateral view; C. Same, ventral view; D. Same, dorsal view; E. Epigyne, ventral view; F. Same, dorsal view. Abbreviations: E—embolus; DTA—dorsal tibial apophysis; FA—femoral apophysis; PTA—prolateral tibial apophysis; RTA—retrolateral tibial apophysis; SD—sperm duct; B—bursa; CO—copulatory opening; CD—copulatory duct; CT—connecting tube; FD—fertilization duct; MS—median septum; S—spermathecae.

FIGURE 57. Copulatory organs of Otacilia yongjia sp. nov.: A. Male left palp, ventral view; B. Same, retrolateral view; C. Same, dorsal view; D. Epigyne, ventral view; E. Same, dorsal view. Scale bars: 0.2 mm.