Otacilia zhangi, Fu, Lina, Jin, Chi & Zhang, Feng, 2014

Fu, Lina, Jin, Chi & Zhang, Feng, 2014, Three new species of the genus Otacilia Thorell (Araneae: Phrurolithidae) from China, Zootaxa 3869 (4), pp. 483-492 : 489-491

Otacilia zhangi sp. nov.

Fig. 5

Type material. Holotype ♂, China, Sichuan Province, Nanjiang County (32°22′N, 106°50′E), 18 May 2013, leg. Zhisheng Zhang. Paratypes: 2♂, same data as for holotype.

Etymology. The specific name is a patronym in honor of Dr. Zhisheng Zhang, the collector of the type series; noun in genitive case.

Diagnosis. The new species is similar to O. stella and O. vulpes in having a distal RTA and a prolateral tegular projection closed to the embolar base, but can be distinguished from O. stella by: 1) the palp with only one RTA, while O. stella has two distinct apophyses on the retrolateral side; 2) the embolus nearly extending to the edge of cymbium, while the embolus is much shorter in O. stella ; 3) tegulum narrower basally, while broad and rounded in O. stella ( Kamura 2004: 88, figs 1–6). The new species also can be distinguished from O. vulpes by: 1) embolus long and embolar base with a large pointed projection, while embolus shorter and embolar base with one short projection in O. vulpes ; and 2) palp with only one RTA, while O. vulpes has a RTA and an additional small tubercle on the retrolateral side ( Kamura 2001: 51, figs 4–7). The new species also resembles O. pseudostella in having a similar RTA and bulb, but can be distinguished from the latter by: 1) palp with only one RTA, while O. pseudostella has a RTA and a BTA; 2) embolar base with a sharp projection, while embolar base with a fingershaped projection in O. pseudostella .

Description. Male ( Fig. 5 A). Total length 3.36–3.51 (n=3). Holotype: body 3.44 long; carapace 1.75 long, 1.51 wide; abdomen 1.78 long, 1.67 wide. Carapace reddish brown, anteriorly abruptly narrow; fovea longitudinal, distinct. Diameter of eyes: AME 0.07, ALE 0.08, PME 0.07, PLE 0.08. Eye interdistances: AME–AME 0.04, AME–ALE 0.02, PME–PME 0.11, PME–PLE 0.06, ALE–PLE 0.06. MOA 0.22 long, front 0.21 wide, back 0.24 wide. Clypeus 0.11 high. Chelicerae with one strong anterior spine; promargin with three well-separated teeth and retromargin with two denticles close to each other. Labium and gnathocoxae wider than long, brown. Legs light yellow. Measurements of legs: leg I 5.17 (1.34, 0.48, 1.54, 1.15, 0.66), II 4.60 (1.20, 0.44, 1.22, 1.05, 0.69), III 4.11 (1.05, 0.47, 0.85, 1.07, 0.67), IV 5.91 (1.51, 0.48, 1.36, 1.69, 0.87). Leg formula: 4123. Femora I–IV basally with one dorsal spine, femur I with three prolateral spines; tibiae I and II with six pairs of ventral spines; metatarsus I with four pairs of ventral spines, metatarsus II with four proventral spines and three retroventral spines. Abdomen oval, anterior half with a wide dorsal scutum, posterior half dark brown and with several chevron-like stripes dorsally.

Palp ( Figs 5 B–F). Femur distally with an apophysis and concavity on retroventral side. Single long RTA extending distally, base broad and tip pointed. Cymbium ventrally with tufted hairs around the embolus tip. Tegulum convex. embolus long, apically pointed.

Distribution. Known only from the type locality in central China ( Fig. 6 ).

Figures

FIGURE 5. Otacilia zhangi sp. nov., A. Male body, dorsal view; B, C. Male left palp, retrolateral view; D. Same, dorsal view; E, F. Same, ventral view.

FIGURE 6. Distribution of O. fujiana sp. nov., O. pseudostella sp. nov. and O. zhangi sp. nov.