Otacilia limushan Fu, Zhang & Zhu, 2010

Fu, Li-Na, He, Jing-Chao & Zhang, Feng, 2015, Species of the genus Otacilia from Hainan Island, China (Araneae: Phrurolithidae), Zoological Systematics 40 (4), pp. 436-450 : 444-448

Otacilia limushan Fu, Zhang & Zhu, 2010 ( Figs 35–51 )

Otacilia limushan Fu, Zhang & Zhu, 2010: 648 , f. 4A–C.

Material Examined. Holotype ♀, China, Hainan Province, Qiongzhong County, Mt. Limu (19.3°N, 109.1°E), 18 August 2007, Feng Zhang leg. Other materials. China, Hainan Province, Qiongzhong County, Mt. Limu, Main Peak (19°10′38″N, 109°44′54″E), 5♂, 8♀, 21 January 2015, Li-Na Fu, Chi Jin leg. ; Mt. Limu (19°10′14″N, 109°44′57″E), 5♂, 5♀, 23 January 2015, Li-Na Fu, Bao-Shi Zhang leg. ; Limushan Resort (19°10′37″N, 109°44′52″E), 3♀, 20 January 2015, Li-Na Fu leg.

Diagnosis. The male of O. limushan resembles O. jianfengling in having similar median plate, but the male can be distinguished from it by: 1) shorter and thinner embolus; 2) hilt-like tegular apophysis; 3) thinner RTA; 4) smaller FA. This new species also resembles O. florifera sp. nov. in having a similar RTA, but can be separated from the latter by: 1) thicker and straight copulatory ducts, 2) broader median plate, 3) thinner RTA, and 4) no body stripes.

Description. Male ( Fig. 38 ). Total length 2. 97–3.49 (n =6). One male from Mt. Limu, Main Peak, body 3.49 long; carapace 1.55 long, 1.26 wide; abdomen 1.84 long, 0.99 wide. Carapace yellowish grey, oval, abruptly narrow anteriorly, medium grey; thoracic part slightly higher than the cephalic part; fovea longitudinal, distinct. Diameter of eyes: AME 0.11, ALE 0.07, PME 0.08, PLE 0.07. Eye interdistances: AME–AME 0.05, AME–ALE 0.02, PME–PME 0.08, PME–PLE 0.04. MOA 0.26 long, front 0.25 wide, back 0.25 wide. Clypeus 0.09 high. Chelicerae light brown, with two bristles anteriorly; promargin of cheliceral furrow with three well-separated teeth and retromargin with five teeth near to each other. Labium and gnathocoxae brown. Legs and palps light yellowish. Leg measurements: I 8.34 (2.07, 0.34, 2.67, 1.95, 1.31); II 6.30 (1.63, 0.43, 1.74, 1.52, 0.98); III 5.23 (1.40, 0.39, 1.16, 1.43, 0.85); IV 8.49 (2.24, 0.47, 2.03, 2.46, 1.29). Leg formula: 4123. Femora I–IV with only one dorsal spine. Femur I with four prolateral spines and femur II with three prolateral spines; tibia I with nine pairs of ventral spines, tibia II with seven pairs of ventral spines; metatarsus I with four pairs of ventral spines, metatarsus II with four proventral spines and three retroventral spines. Abdomen dark grey, with a piece of white spot terminally.

Palp ( Figs 40–43 , 46–49 ). Femoral apophysis located ventrally. RTA thin; tibia with a row of long spines distally. Tegular apophysis short, hilt-like. Embolus thin and curved, sickle-shaped.

Female ( Figs 35 , 39 ). Total length 3.60–4.06 (n =6). Holotype body 3.64 long; carapace 1.62 long, 1.40 wide; abdomen 2.02 long, 1.17 wide. Carapace dark brown, abruptly narrow anteriorly; fovea longitudinal. Diameter of eyes: AME 0.09, ALE 0.09, PME 0.07, PLE 0.08. Eye interdistances: AME–AME 0.12, AME–ALE 0.10, PME–PME 0.13, PME–PLE 0.12. MOA 0.32 long, front 0.24 wide, back 0.26 wide. Clypeus 0.09 high. Leg measurements: I 8.02 (2.30, 0.45, 2.29, 1.80, 1.18); II 5.94 (1.62, 0.36, 1.85, 1.30, 0.81); III 4.32 (1.30, 0.27, 1.04, 0.99, 0.72); IV 8.11 (2.03, 0.54, 2.03, 2.29, 1.22). Leg formula: 4123. Femora I–IV with one dorsal spine. Femur I with five prolateral spines and femur II with three prolateral spines; tibia I with eight pairs of ventral spines, tibia II with eight pairs of ventral spines; metatarsus I with four pairs of ventral spines, metatarsus II with four pairs of ventral spines. Abdomen dark dorsally. Other characters as in male.

Epigyne ( Figs 36–37 , 44–45 , 50–51 ). The margin of median plate extending parallelly and longitudinally. Copulatory openings small, situated medially on epigyne, located in the shallow concavities anteriorly ( Figs 36 , 44 , 50 ). Vulva anteriorly with a pair of large, transparent kidney-shaped bursae, posteriorly with a pair of spermathecae connecting with lightly curved copulatory duct, glandular appendage much shorter than fertilization duct.

Distribution. China (Hainan).

Note. Otacilia limushan was originally described by Fu, Zhang & Zhu (2010) on the basis of a female holotype collected from Mt. Limu, Hainan Province, China. While examining the Otacilia specimens collected from Mt. Limu in 2015, we easily identified the female as O. limushan according to the original description, and considered that the male specimen also belongs to the same species because the habitus and the marking are very similar to those of the female. Therefore the male O. limushan is reported for the first time.

Figures

Figs 35–37. Otacilia limushan Fu, Zhang & Zhu, 2010, holotype. 35. Body, ♀, dorsal view. 36. Epigyne, ventral view. 37. Vulva, dorsal view. Scale bars: 35=1.00mm; 36–37 =0.20mm.

Figs 38–45. Otacilia limushan Fu, Zhang & Zhu, 2010. 38. Body, ♂, dorsal view. 39. Body, ♀, dorsal view. 40–43. Left palp, ♂. 40. Dorsal view. 41. Prolateral view. 42. Ventral view. 43. Retrolateral view. 44. Epigyne, ventral view. 45. Vulva, dorsal view. Scale bars: 38–39=1.00 mm; 40–45=0.20mm.

Figs 46–51. Otacilia limushan Fu, Zhang & Zhu, 2010. 46–49. Left palp, ♂. 46. Prolateral view. 47. Retrolateral view. 48. Ventral view. 49. Dorsal view. 50. Epigyne, ventral view. 51. Vulva, dorsal view. Scale bars=0.25mm.