Otacilia flexa, 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 : 217-220

Otacilia flexa sp. nov.

Figs 16 A–J, 17A–E

Type material. Holotype ♂, China, Yunnan Province, Funing County, Muyang National Public Ecological Forest, 23°27.107′N, 105°25.373′E, 7 May 2011, Zongxu Li leg. Paratypes: 5♂, 8♀, same data as for holotype, Zongxu Li & Guchun Zhou leg.

Etymology. The species name is derived from the Latin word ‘ flexus ’ and refers to the folded copulatory ducts; adjective in genitive case.

Diagnosis. The new species is similar to O. longituba ( Wang et al. 2012: 41, figs 4A–E, 5A–I), but can be distinguished from it by: 1) CO large, anteriorly, widely separated ( Figs 16 C, 17D) (smaller, located relatively posteriorly and close to each other in O. longituba ); 2) boomerang-shaped BU ( Figs 16 D, 17E) (racket shaped in O. longituba ); 3) DTA trifurcated apically ( Figs 16 E, 17C) (broad, with a relatively narrow base in O. longituba ); 4) a longer spoon-shaped conductor ( Figs 16 G, 17B) (short in O. longituba ). The new species is also similar to O. mira sp. nov. ( Figs 1–2 ), but can be distinguished from the latter by: 1) DTA trifurcated apically ( Figs 16 E, 17C) (Sshaped, with relatively sharp apex in O. mira sp. nov.); 2) conductor present (absent in O. mira sp. nov.); 3) boomerang-shaped BU ( Figs 16 D, 17E) (hilt-like in O. mira sp. nov.); 4) SP larger (small in O. mira sp. nov.).

Description. Male ( Fig. 16 A). Total length 1.93–2.42 (n=6). Holotype: body 2.33 long; carapace 1.03 long, 0.92 wide; abdomen 1.19 long, 0.83 wide. Carapace light yellowish. Eyes sizes and interdistances: AME 0.05, ALE 0.07, PME 0.05, PLE 0.06; AME–AME 0.03, AME–ALE 0.01, PME–PME 0.06, PME–PLE 0.05. MOA 0.13 long, front 0.10 wide, back 0.17 wide. Clypeus 0.07 high. Chelicerae with one strong anterior bristle; promargin with three well-separated teeth and retromargin with two teeth close to each other. Labium and gnathocoxae yellow. Legs light yellow. Leg measurements: leg I 2.84 (0.88, 0.26, 0.79, 0.58, 0.33), II 2.28 (0.69, 0.22, 0.52, 0.49, 0.36), III 2.19 (0.58, 0.25, 0.43, 0.52, 0.41), IV 3.13 (0.86, 0.28, 0.71, 0.76, 0.52). Abdomen dark grey, with anterior large dorsal scutum occupying nearly 4/5 of abdomen length; posterior half with six bright chevron-shaped markings dorsally. Venter yellow grey.

Palp ( Figs 16 E–H, 17A–C): DTA strong, relatively thick, with wide base, trifurcated apically. Tibia wider than femur and patella. E long, tapering, needle-like, without PEA. SD strongly sclerotized. Conductor long, spoonshaped, its tip close to tip of E.

Female ( Fig. 16 B). Total length 2.46–2.76 (n=4). One paratype: body 2.51 long; carapace 1.04 long, 0.90 wide; abdomen 1.42 long, 0.92 wide. Carapace light yellowish. Eyes sizes and interdistances: AME 0.04, ALE 0.07, PME 0.05, PLE 0.06; AME–AME 0.02, AME–ALE 0.01, PME–PME 0.05, PME–PLE 0.05. MOA 0.12 long, front 0.09 wide, back 0.16 wide. Clypeus 0.08 high. Leg measurements: I 2.80 (0.78, 0.28, 0.77, 0.63, 0.34); II 2.50 (0.76, 0.26, 0.48, 0.54, 0.44); III 2.37 (0.68, 0.23, 0.48, 0.54, 0.44); IV 3.39 (0.93, 0.29, 0.78, 0.84, 0.55). Abdomen light grey dorsally, without dorsal scutum; posterior half with seven light chevron-shaped markings dorsally.

Epigyne ( Figs 16 C–D, 17D–E): CO large, widely separated, by distance equal to double their diameter. CD with two folds, connected to two large, transparent, boomerang-shaped BU anteriorly. SP round, large, located posteriorly, close to each other. FD originating anteriorly from SP.

Distribution. Known only from the type locality, Yunnan, China ( 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 2. Otacilia mira sp. nov., holotype male (A – C) and paratype female (D – E). A. Palp, prolateral; B. Same, ventral; C. Same, retrolateral; D. Epigyne, ventral; E. Vulva, dorsal. Scale bars: 0.25 mm (A – C); 0.5 mm (D – E).

FIGURE 16. Otacilia flexa sp. nov., holotype male (A, E – J) 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; I. Left chelicerae of male, ventral; J. Left leg I of male, lateral. Scale bars: 0.5 mm (A – B); 0.2 mm (C – H, J); 0.1 mm (I).

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