Otacilia subovoidea 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 subovoidea Liu sp. nov. Figures 18 , 19 , 20

Type material.

Holotype: ♂, China: Jiangxi Province, Ji’an City, Jinggangshan County Level City, Ciping Town, Liping Village, Citic Sewage Treatment Plant, 26°35'28.93"N, 114°12'46.82"E, 810 m, 6 October 2018, leg. Ke-Ke Liu and Hui-Pu Luo. Paratypes: 6♂, 3♀, with same data as holotype; 4♂, 5♀, Liping Village, around the Shiyan Cave, 26°36'13.60"N, 114°12'35.91"E, 927 m, other data as holotype; 2♂, 2♀, Dajing Village, Lingxiufeng Scenic Spot, 26°34'16.72"N, 114°07'00.56"E, 971 m, 1 October 2018, leg. Ke-Ke Liu et al.; 5♂, Xiaojing Village, Longtan Scenic Spot, 26°35'33.08"N, 114°08'18.50"E, 909 m, 1 October 2018, leg. Ke-Ke Liu et al.; 2♂, 3♀, Wuzhifeng Scenic Spot, 26°31'59.07"N, 114°08'28.47"E, 735 m, 2 October 2018, leg. Ke-Ke Liu et al.; 3♀, Jingzhushan Scenic Spot, 26°32'39.69"N, 114°06'34.96"E, 1130 m, 1 October 2018, leg. Ke-Ke Liu et al.; 2♂, 3♀, Wuzhifeng Scenic Spot, 26°32'48.23"N, 114°09'10.61"E, 811 m, 2 October 2018, leg. Ke-Ke Liu et al.

Etymology.

The specific name is derived from that of a similar species, O. ovoidea sp. nov.; adjective.

Diagnosis.

The new species differs from O. ovoidea sp. nov. by the relatively longer spine-like tip of embolus (Figs 18D , 20 ) (vs. short, hook-shaped), the straight broad retrolateral tegular apophysis (Figs 18D , 20 ) (vs. thin, clavate) and by the relatively broader bar-shaped median septum (Fig. 19C ) (vs. funnel-shaped, anteriorly broad, posteriorly thin), and the separated spermathecae (Fig. 19D ) (vs. touching spermathecae).

Description.

Male (holotype). Habitus as in Fig. 18A, B . Total length 3.44, carapace 1.69 long, width 1.44 wide. Eye sizes and interdistances: AME 0.10, ALE 0.10, PME 0.07, PLE 0.11; ALE-AME 0.02, AME-AME 0.06, PLE-PME 0.09, PME-PME 0.14, ALE-ALE 0.26, PLE-PLE 0.44, ALE-PLE 0.11, AME-PME 0.11, ALE-PME 0.19. MOA 0.25 long, front width 0.22, back width 0.29. Chelicerae (Fig. 18A, B ) with three promarginal (proximal largest, distal smallest) and six retromarginal teeth (distal largest, proximal smallest). Sternum (Fig. 18B ) longer than wide. Abdomen (Fig. 18A, B ) 1.66 long, 1.01 wide. Leg measurements: I 7.00 (1.79, 0.63, 2.13, 1.69, 0.76); II 5.76 (1.50, 0.58, 1.60, 1.33, 0.75); III 4.30 (1.25, 0.53, 0.90, 1.03, 0.59); IV 7.48 (2.02, 0.60, 1.84, 2.10, 0.91). Leg spination: femur I with two dorsal spines, femora II-IV with one dorsal spine each; femora I pv1111, II pv11; tibiae I v22222222, II v222222; metatarsi I v2222, II pv1222.

Colouration (Figs 18A, B ). Carapace yellow, medially with broad dark brown mottled markings in the surface. Fovea distinct, black. Chelicerae, endites, labium and sternum yellow brown. Legs yellow, without dark annulation. Abdomen dark brown, with pair of round and oval pale spots located in the posterior dorsal scutum and three light chevron-shaped stripes in posterior part, and one yellowish transversal stripe in front of the anal tubercle.

Palp (Figs 18C-E , 20 ). Femoral apophysis well-developed, width more than half of length. Patella unmodified. Retrolateral tibial apophysis large, longer than tibia, sword-like in ventral view, bending inward to the base of cymbium, medial part widened and slightly curved, with a strong spine-like tip. Sperm duct U-shaped, strongly sclerotised, around the base of subterminal apophysis, terminal apophysis and embolus. Subterminal apophysis, straight, broad, as long as embolus, anteriorly widened. Terminal apophysis, membranous, fan-shaped, extending to median bulb. Embolus, thick, hook-shaped, with a broad base and a blunt tip. Embolus relatively long, thick spine like, with broad base and a blunt apex.

Female. Habitus as in Fig. 19A, B . Lighter than males. Total length 3.57, carapace 1.66 long, 1.46 wide. Eye sizes and interdistances: AME 0.07, ALE 0.07, PME 0.07, PLE 0.09; ALE-AME 0.04, AME-AME 0.08, PLE-PME 0.09, PME-PME 0.14, ALE-ALE 0.28, PLE-PLE 0.43, ALE-PLE 0.12, AME-PME 0.13, AME-PLE 0.11. MOA 0.26 long, front width 0.21, back width 0.27. Abdomen (Fig. 19A, B ) 1.80 long, 1.15 wide. Leg measurements: I 7.12 (1.81, 0.68, 2.21, 1.67, 0.75); II 5.76 (1.50, 0.58, 1.65, 1.29, 0.74); III 4.91 (1.31, 0.48, 1.14, 1.20, 0.78); IV 7.56 (2.10, 0.66, 1.85, 2.05, 0.90). Leg spination: tibia II v22222222.

Epigyne (Fig. 19C, D ). Epigynal plate mask-like, anterior margin slightly sclerotised, transverse, medially with pair of touching hole-shaped copulatory openings, posteriorly with bar-shaped median septum, copulatory ducts, connecting tubes and spermathecae distinctly visible through integument in intact epigyne. Copulatory ducts between copulatory openings and glandular appendages, sloping laterally, proper broad, posteriorly with pair of large, oval, transparent bursae. Glandular appendages short, partly covered by bursae, located on anterior of connecting tubes. Connecting tubes slightly shorter than copulatory ducts, slightly curved backwards. Spermathecae sub-spherical, directed medially, separated by mark of median septum. Fertilisation duct short, with semi-ovoid base, directed forward.

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

Figure 19. Otacilia subovoidea 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 20. SEM micrographs of Otacilia subovoidea sp. nov., male paratype A palp, prolateral view B same, ventral view C same, ventral view, detail of conductor, embolus and tegular apophysis D same, retrolateral view F same, retrolateral view, detail of embolus and tegular apophysis. Scale bars: 0.1 mm (A, B, D), 20 µm (C), 40 µm (E). Abbreviations: dTA - distal tegular apophysis, E - embolus, FA - femoral apophysis, RTA - retrolateral tibial apophysis, rTA - retrolateral tegular apophysis.