Otacilia mira, Fu, Lina, Zhang, Zhisheng & Zhang, Feng, 2016

Fu, Lina, Zhang, Zhisheng & Zhang, Feng, 2016, New Otacilia species from Southwest China (Araneae: Phrurolithidae), Zootaxa 4107 (2), pp. 197-221 : 199-202

Otacilia mira sp. nov.

Figs 1 A–H, 2A–E

Type material. Holotype ♂, China, Chongqing Municipality, Wanzhou Region, Wangerbao Natural Reserve, 30°39.363′N, 108°43.999′E, 19 September 2012, Luyu Wang & Xuankong Jiang leg. Paratypes: 8♂, 5♀, same data as holotype; 9♂, 10♀, same data as holotype, but collected on 15 March 2013; 1♀, Guizhou Province, Chishui City, Wuzhufeng scenic area, 28°23.448′N, 105°58.690′E, 2 October 2012, Luyu Wang leg.

Etymology. The species name is derived from the Latin word ‘ mirus ’, meaning strange, and refers to the unique structure of the epigyne; adjective.

Diagnosis. This new species is similar to O. longituba ( Wang et al. 2012: 41, figs 4A–E, 5A–I), but can be distinguished by: 1) large CO, widely separated, located centrally (relative close and located posteriorly in O. longituba ); 2) epigastric furrow with a medial notch (lacking a notch in O. longituba ); 3) DTA long, S-shaped, with relatively sharp apex (shorter, with a blunt apex in O. longituba ); 4) tegulum inflated in the new species (uninflated in O. longituba ). The new species is also similar to O. simianshan ( Zhou et al. 2013: 1, figs 2A–E, 3A–G), but can be distinguished by: 1) large CO, located centrally and widely separated (smaller, relatively posterior, and close to each other in O. simianshan ); 2) BU hilt-like in the new species (oval in O. simianshan ); 3) DTA longer in the new species (relatively short in O. simianshan ).

Description. Male ( Fig. 1 A). Total length 3.08–3.86 (n=8). Holotype: body 3.18 long; carapace 1.54 long, 1.31 wide; abdomen 1.52 long, 0.93 wide. Carapace light yellowish. Eyes sizes and interdistances: AME 0.07, ALE 0.09, PME 0.07, PLE 0.08; AME–AME 0.05, AME–ALE 0.02, PME–PME 0.12, PME–PLE 0.08. MOA 0.25 long, front 0.19 wide, back 0.28 wide. Clypeus 0.11 high. Cheliceral promargin with three well-separated teeth and retromargin with five teeth near each other. Labium and gnathocoxae yellow. Legs light yellow. Leg measurements: leg I 6.02 (1.64, 0.38, 1.87, 1.45, 0.68), II 4.91 (1.34, 0.35, 0.37, 1.13, 0.72), III 4.14 (1.15, 0.32, 0.89, 1.12, 0.66), IV 6.47 (1.84, 0.38, 1.64, 1.75, 0.86). Abdomen light grey, anterior half with a small, grey dorsal scutum, occupying nearly 1/10 of abdomen length; posterior half light grey with five bright chevron-shaped markings dorsally. Venter light yellow.

Palp ( Figs 1 E–H, 2A–C): DTA long, relatively curved, S-shaped, extending along the cymbium retrolaterally, its tip tapering. E gradually tapering, needle-like, tegulum membranous near base of E, without PEA. SD very short, strongly sclerotized.

Female ( Fig. 1 B). Total length 3.44–4.12 (n=6). One paratype: body 3.54 long; carapace 1.65 long, 1.46 wide; abdomen 1.88 long, 1.11 wide. Carapace light yellowish anteriorly. Eyes sizes and interdistances: AME 0.08, ALE 0.09, PME 0.07, PLE 0.08; AME–AME 0.05, AME–ALE 0.02, PME–PME 0.12, PME–PLE 0.07. MOA 0.26 long, front 0.21 wide, back 0.29 wide. Clypeus 0.12 high. Leg measurements: I 6.10 (1.69, 0.37, 1.94, 1.43, 0.67); II 5.13 (1.35, 0.39, 1.41, 1.22, 0.76); III 4.62 (1.21, 0.33, 0.97, 1.33, 0.78); IV 6.61 (1.53, 0.58, 1.67, 1.92, 0.91). Abdomen light grey, without dorsal scutum dorsally, markings as in male.

Epigyne ( Figs 1 C–D, 2D–E): CO large, widely separated, centrally located. CD long, folded, connecting with two large transparent BU anteriorly. SP egg-shaped, with similar width to CO, located posteriorly. FD originating anteriorly from SP. Epigynal plate with posterior medial notch.

Distribution. China (Chongqing, Guizhou) ( Fig. 18 ).

Figures

FIGURE 1. Otacilia mira sp. nov., holotype male (A, E – H) and paratype female (B – D). A. Male habitus, dorsal; B. Female habitus, dorsal; C. Epigyne, ventral; D. Vulva, dorsal; E. Palp, dorsal; F. Same, prolateral; G. Same, ventral; H. Same, retrolateral. Scale bars: 1 mm (A – B); 0.2 mm (C – H).

FIGURE 18. Distribution of new species of the genus Otacilia from Southwest China.