Otacilia shenshanica 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 shenshanica Liu sp. nov. Figures 15 , 16 , 17

Type material.

Holotype: ♂, China: Jiangxi Province, Ji’an City, Jinggangshan County Level City, Dalong Town, Yuantou Village, 26°37'55.2"N, 114°06'21.6"E, 1029 m, 5 April 2014, leg. Ke-Ke Liu et al. Paratypes: ♀, with same data as holotype; 1♂, 2♀, 26°37'33.6"N, 114°06'21.6"E, 791 m, other data as holotype; 1♀, Longshi Town, Maoping, Shenshan Village, Shenshan, 26°38'13.2"N, 114°06'39.6"E, 1099 m, 6 April 2014, leg. Ke-Ke Liu et al.

Etymology.

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

Differential diagnosis.

The new species differs from O. hengshan (Song, 1990) by the bend of the RTA with a strong basal apophysis (Figs 15C, E, F , 17C ) (vs. the sub-median part of the RTA with a strong apophysis) and the wider median septum located medially (Fig. 16C, D ) (vs. narrowed).

Description.

Male (holotype). Habitus as in Fig. 15A . Total length 3.87, carapace 1.72 long, 1.45 wide. Eye sizes and interdistances: AME 0.08, ALE 0.10, PME 0.08, PLE 0.09; ALE-AME 0.03, AME-AME 0.06, PLE-PME 0.07, PME-PME 0.14, ALE-ALE 0.27, PLE-PLE 0.41, ALE-PLE 0.11, AME-PME 0.10, ALE-PME 0.19. MOA 0.26 long, front width 0.21, back width 0.29. Cervical groove and fovea distinct. Chelicerae (Fig. 15A, B ) with three promarginal (middle largest, distal smallest) and six retromarginal teeth (distal largest, proximal smallest). Sternum (Fig. 15B ), posterior pointed. Abdomen (Fig. 15A, B ) 1.98 long, 1.38 wide, weak dorsal scutum in anterior half. Leg measurements: I 7.21 (1.87, 0.70, 2.24, 1.77, 0.63); II 5.52 (1.52, 0.58, 1.45, 1.38, 0.59); III 4.86 (1.31, 0.54, 1.08, 1.33, 0.60); IV 7.77 (2.09, 0.63, 1.88, 2.15, 1.02). Leg spination: femur I with two dorsal spines, femora II-IV with one dorsal spine each; femora I pv1111 (right), pv11111, II pv111; tibiae I v22222222, II v222222; metatarsi I v2222, II v1222.

Colouration (Fig. 15A, B ). Carapace yellow, with radial, irregular dark stripes medially and arch-shaped dark stripes around margin. Chelicerae yellow-brown. Endites yellow. Labium yellow-brown. Sternum yellow. Legs yellow, without annulations on tibiae and distal part of femora, patellae, and metatarsi. Abdomen dark brown, with pair of oval and pair of clavate yellowish spots on the posterior dorsal scutum, three light chevron-shaped stripes in posterior part, and yellowish arch-shaped stripe in front of the anal tubercle.

Palp (Figs 15C-F , 17 ). Femoral apophysis well developed, width less than half of length. Patella unmodified. Retrolateral tibial apophysis large, slightly less than tibia, finger-like, bending inwards towards base of cymbium, with strong basal apophysis and blunt tip. Sperm duct O-shaped, strongly sclerotised, around base of retrolateral tegular apophysis, distal tegular apophysis and embolus. Retrolateral tegular apophysis clavate, slightly shorter than embolus. Distal tegular apophysis triangular, accompanied by embolus and subterminal apophysis. Embolus, thick, hook-shaped, with broad base and blunt tip.

Female. Habitus as in Fig. 16A, B . Darker than males. Total length 4.35, carapace 1.91 long, 1.67 wide. Eye sizes and interdistances: AME 0.10, ALE 0.11, PME 0.09, PLE 0.10; ALE-AME 0.02 AME-AME 0.07, PLE-PME 0.08, PME-PME 0.14, ALE-ALE 0.30, PLE-PLE 0.47, ALE-PLE 0.11, AME-PME 0.11, ALE-PME 0.11. MOA 0.28 long, front width 0.25, back width 0.33. Abdomen (Fig. 16A ) 2.27 long, 1.73 wide. Legs (Fig. 13A ) measurements: I 7.84 (2.03, 0.75, 2.39, 1.83, 0.84); II 6.61 (1.74, 0.66, 1.87, 1.51, 0.83); III 5.52 (1.43, 0.62, 1.34, 1.42, 0.71); IV 8.39 (2.23, 0.74, 2.01, 2.33, 1.08). Leg spination: femur I pv1111; tibia II v22222222.

Colouration (Fig. 16A, B ). Abdomen with pair of irregular yellowish spots behind the first pair of oval spots.

Epigyne (Fig. 16C, D ). Epigynal plate bow-shaped, antero-medially with pair of concaved copulatory openings, with triangular median septum, copulatory ducts, glandular appendage, connecting tubes and spermathecae distinctly visible through integument in intact epigyne. Copulatory ducts broad, slightly sloping, located between copulatory openings and glandular appendages, posteriorly with pair of large, bean-shaped, transparent bursae. Glandular appendages short, partly covered by bursae, located on anterior of connecting tubes. Connecting tubes, twice the length of copulatory ducts, located between glandular appendages and spermathecae. Spermathecae globular, slightly separated. Fertilisation duct short, located apically on spermathecae, 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 13. Otacilia ovoidea 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. Scale bars: 0.5 mm (A, B), 0.1 mm (C-F). Abbreviations: dTA - distal tegular apophysis, E - embolus, FA - femoral apophysis, rTA - retrolateral tegular apophysis, RTA - retrolateral tibial apophysis, SD - sperm duct.

Figure 15. Otacilia shenshanica sp. nov., male holotype A habitus, dorsal view B same, ventral view C palp, prolateral view D same, ventral-distal view E same, retrolateral view F same, dorsal view. Scale bars: 0.5 mm (A, B), 0.1 mm (C-F). Abbreviations: dTA - distal tegular apophysis, E - embolus, FA - femoral apophysis, RTA - retrolateral tibial apophysis, rTA - retrolateral tegular apophysis, SD - sperm duct.

Figure 16. Otacilia shenshanica 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 17. SEM micrographs of Otacilia shenshanica sp. nov., palp of male paratype A proventral view B same, detail showing embolus C retrolateral view D same, detail of conductor, embolus and tegular apophysis. Scale bars: 0.1 mm (A, C), 20 µm (B, D). Abbreviations: dTA - distal tegular apophysis, E - embolus, FA - femoral apophysis, RTA - retrolateral tibial apophysis, rTA - retrolateral tegular apophysis.