Otacilia bijiashanica Liu, 2020

Liu, Ke-Ke, Luo, Hui-Pu, Ying, Yuan-Hao, Xiao, Yu-Xin, Xu, Xiang & Xiao, Yong-Hong, 2020, A survey of Phrurolithidae spiders from Jinggang Mountain National Nature Reserve, Jiangxi Province, China, ZooKeys 947, pp. 1-37 : 1

Otacilia bijiashanica Liu sp. nov. Figures 9 , 10 , 11

Type material.

Holotype: ♂, China: Jiangxi Province, Ji’an City, Jinggangshan County Level City, Ciping Town, Bijiashan Scenic Spot, Hongjun Road, 26°36'25.88"N, 114°11'43.07"E, 549 m, 3 October 2018, leg. Ke-Ke Liu et al. Paratypes: 3♂, 1♀, same locality as holotype, Luofu Town, Xiangzhou Village, Fengshuping Group, 26°36'10.31"N, 114°06'34.69"E, 364 m, 5 October 2018, leg. Ke-Ke Liu and Hui-Pu Luo; 1♂, Ciping Town, Huangyangjie Scenic Spot, 26°37'22.8"N, 114°7'1.2"E, 1055 m, 5 April 2014, leg. Ke-Ke Liu et al.

Etymology.

The specific name refers to the type locality, Bijiashan; adjective.

Differential diagnosis.

The new species differs from O. fabiformis Liu, Xu, Xiao, Yin & Peng, 2019 and O. hippocampa Jin, Fu, Yin & Zhang, 2016 by the short hook-shaped embolus (Figs 9D , 11A, B ) (vs. spine-like in O. fabiformis and O. hippocampa ), and the C-shaped spermathecae (Fig. 10D ) (vs. peanut-like in O. fabiformis and globular in O. hippocampa ).

Description.

Male (holotype). Habitus as in Fig. 9A, B . Total length 2.56, carapace 1.24 long, 1.07 wide. Eye sizes and interdistances: AME 0.06, ALE 0.08, PME 0.08, PLE 0.08; ALE-AME 0.01, AME-AME 0.04, PLE-PME 0.04, PME-PME 0.07, ALE-ALE 0.17, PLE-PLE 0.30, ALE-PLE 0.07, AME-PME 0.07, ALE-PME 0.07. MOA 0.21 long, front width 0.15, back width 0.22. Chelicerae (Fig. 9B ) three promarginal (proximal largest, distal smallest) and two retromarginal teeth (distal larger Sternum, posteriorly pointed. Abdomen (Fig. 9A, B ), 1.42 long, 0.97 wide. Leg measurements: I 4.64 (1.21, 0.50, 1.35, 1.08, 0.50); II 4.00 (1.10, 0.48, 1.05, 0.95, 0.42); III 3.49 (0.90, 0.41, 0.74, 0.93, 0.51); IV 4.95 (1.30, 0.46, 1.10, 1.38, 0.71). Leg spination: femur I with two dorsal spines, femora II-IV with one dorsal spine each; femora I pv111, II pv11; tibiae I v2222222, II v222222; metatarsi I v2222, II v1222.

Colouration (Fig. 9A, B ). Carapace yellow, with radial, irregular dark stripes submarginally and arc-shaped dark stripes around margin. Chelicerae yellow brown. Endites, labium and sternum yellow. Legs yellow, with distinct annulations on tibiae and distal part of femora, patellae and metatarsi. Abdomen yellowish, with two large C-shaped stripes on the two sides of dorsal scutum and four light chevron-shaped stripes in submedial part, and single yellowish transverse stripe posteriorly.

Palp (Figs 9C-F , 11 ). Femoral apophysis well-developed, width longer than half of length. Patella unmodified. Retrolateral tibial apophysis large, longer than tibia, horn-shaped, with a sharp apex in retrolateral view. Dorsal tibial apophysis large, slightly shorter than tibia, with sharp narrowed sub-medial part and a spine-like apex in dorsal view. Sperm duct strongly sclerotised, hook-shaped in ventral view, anterior part thick, gradually narrowed in posterior part. Retrolateral tegular apophysis extruding laterally, in front of anterior part of sperm duct. Embolus short and hook-shaped.

Female. Habitus as in Fig. 10A, B . Lighter than males. Total length 2.62, carapace length 1.26, width 1.10. Eye diameters: AME 0.06, ALE 0.08, PME 0.07, PLE 0.08; interdistances: ALE-AME 0.01, AME-AME 0.03, PLE-PME 0.05, PME-PME 0.07, ALE-ALE 0.14, PLE-PLE 0.31, ALE-PLE 0.08, AME-PME 0.08, ALE-PME 0.09. MOA 0.20 long, front width 0.12, back width 0.21. Sternum, posterior end proper blunt. Abdomen (Fig. 10A, B ) length 1.42, width 0.89. Leg measurements: I broken; II 3.93 (1.05, 0.45, 1.06, 0.94, 0.43); III broken; IV 4.92 (1.31, 0.44, 1.17, 1.35, 0.65). Leg spination: femur I with two dorsal spines, femora II-IV with one dorsal spine each; femur II pv11.

Colouration (Fig. 10A, B ). Legs without distinct annulations on femora, patellae, tibiae and metatarsi. Abdomen, antero-medially with longitudinal grey-brown stripe connecting with paired yellowish spots in dorsal view.

Epigyne (Fig. 10C, D ). Epigynal plate snake-like, with a narrowed median septum, copulatory ducts, connecting tubes and spermathecae distinctly visible through integument in intact epigyne. Anteromedially with small round copulatory openings. Copulatory ducts short, proper broad, almost parallel, medially located between copulatory openings and glandular appendage. Connecting tubes short, C-shaped, shorter than connecting tubes. Spermathecae, C-shaped. Fertilisation ducts extending anteriorly.

Distribution.

Known only from the type locality in Jiangxi Province, China (Map 2 ).

Figures

Map 2. Map of China, enlargement showing records of Otacilia acutangula sp. nov., O. bijiashanica sp. nov., O. longtanica sp. nov., O. ovoidea sp. nov., O. shenshanica sp. nov., Otacilia subovoidea sp. nov. and O. xiaoxiica sp. nov. in Jinggang Mountain National Nature Reserve, Jiangxi.

Figure 9. Otacilia bijiashanica sp. nov., male holotype A habitus, dorsal view B same, ventral view C palp, prolateral view D same, ventral view E same, retrolateral view F same, dorsal view, slightly retrolateral. Scale bars: 0.5 mm (A, B), 0.1 mm (C-F). Abbreviations: DTA - dorsal tibial apophysis, E - embolus, rTA - retrolateral tegular apophysis, RTA - retrolateral tibial apophysis, SD - sperm duct.

Figure 10. Otacilia bijiashanica sp. nov., female paratype A habitus, dorsal view B same, ventral view C epigyne, ventral view D epigyne, dorsal view. Scale bars: 0.5 mm (A, B), 0.1 mm (C, D). Abbreviations: B - bursa, CD - copulatory duct, CO - copulatory opening, CT - connecting tube, FD - fertilisation ducts, GA - glandular appendage, MS - median septum, SP - spermathecae.

Figure 11. SEM micrographs of Otacilia bijiashanica sp. nov., palp of male paratype A ventral view B same, detail of bulb C dorsal view, detail of tibia apophysis. Scale bars: 0.1 mm. Abbreviations: DTA - dorsal tibial apophysis, E - embolus, FA - femoral apophysis, RTA - retrolateral tibial apophysis, rTA - retrolateral tegular apophysis.