Thyene xingrenensis Wang, Mi & Peng sp. nov.

urn:lsid:zoobank.org:act: 4190D5CB-157E-4B49-ABF6-A11569150E81

Figs 48–49, 61

Diagnosis

The male of Thyene xingrenensis sp. nov. closely resembles that of T. orientalis Żabka, 1985 in having a similar habitus and palp, but it can be easily distinguished by the following: (1) the embolus originating at about 8 o’clock position of bulb (Fig. 48A–B), whereas about 6 o’clock position of bulb in T. orientalis (Fig. 50A–B); (2) the RTA being directed upward apically in retrolateral view (Fig. 48C), whereas directed towards the antero-retrolateral side in T. orientalis (Fig. 50C). It also somewhat resembles that of T. yuxiensis Xie & Peng, 1995 in the general shape of the palp, but it can be easily distinguished by the tegular flap, which is directed towards 9:00 o’clock position in ventral view (Fig. 48B), whereas about 12:00 o’clock position in T. yuxiensis (Xie & Peng 1995: fig. 4b). The female also resembles T. orientalis in the general shape of epigyne, but differs in the epigynal hood, which is triangular (Fig. 49A), whereas slit-shaped in T. orientalis (Fig. 51A).

Etymology

The species name is derived from the name of the type locality, Xingren County; adjective.

Type material

Holotype

CHINA • ♂; Guizhou, Xingren County, Luchuying Township, Qingshuihe Nature Reserve, Mabaoshu Grand Canyon; 25°17.79′ N, 104°56.13′ E; 1270 m a.s.l.; 3 Aug. 2016; C. Wang et al. leg.; TRU-JS 0534.

Paratypes

CHINA • 12 ♀♀, 6 ♂♂; same collection data as for holotype; TRU-JS 0535–0552 • 14 ♀♀,10 ♂♂; same collection data as for preceding; 4 Aug. 2016; TRU-JS 0553–0576 .

Comparative material

Description

Male (holotype)

MEASUREMENTS. Total length 4.62. Carapace 2.24 long, 1.66 wide. Abdomen 2.36 long, 1.27 wide. Eye sizes and inter-distances: AME 0.51, ALE 0.23, PLE 0.23, AERW 1.48, PERW 1.60, EFL 1.04. Legs: I 3.86 (1.24, 0.75, 0.80, 0.63, 0.44), II 3.73 (1.22, 0.63, 0.78, 0.66, 0.44), III 4.16 (1.39, 0.65, 0.80, 0.88, 0.44), IV 4.56 (1.41, 0.65, 1.03, 1.01, 0.46).

HABITUS. Carapace yellow-brown, covered with dense dark and off-white scale-like setae along submargin, with several pale yellow scale-like setae on clypeus and longitudinal, indistinct, median yellow band extended across thorax; fovea dark red, longitudinal (Fig. 49C, F). Chelicerae with three promarginal teeth and one retromarginal fissidentate tooth with two cusps (Fig. 49F–G). Legs pale to yellow-brown, thorny. Abdomen elongated, dorsum darker laterally, with irregular longitudinal yellow-brown band medially, covered with dense setae; venter gray-white to brown (Fig. 49C–D).

PALP. Tibia wider than long; RTA tapered, about 1.5 times as long as tibia, slightly curved medially and pointed apically in retrolateral view; bulb round, with linguiform tegular flap directed towards about 9 o’clock in ventral view; embolus originates at about 8 o’clock and coiled more than one circle to pointed tip (Fig. 48).

Female (paratype, TRU-JS 0535)

MEASUREMENTS. Total length 4.66. Carapace 2.18 long, 1.59 wide. Abdomen 2.45 long, 1.59 wide. Eye sizes and inter-distances: AME 0.50, ALE 0.24, PLE 0.23, AERW 1.45, PERW 1.53, EFL 0.98. Legs: I 3.43 (1.10, 0.63, 0.75, 0.54, 0.41), II 3.22 (1.07, 0.55, 0.65, 0.54, 0.41), III 3.95 (1.32, 0.58, 0.78, 0.78, 0.49), IV 4.34 (1.34, 0.63, 0.90, 0.98, 0.49).

HABITUS. Similar to that of male except only with two promarginal cheliceral teeth and filiform pattern on dorsum of abdomen (Fig. 49E).

EPIGYNE. With pair of mediolateral triangular hoods opened towards oblique posteriorly; copulatory openings anteriorly located, slit-shaped with C-shaped margins; copulatory ducts long, forming ridges anteromedially and several coils at terminus; spermathecae tube-shaped; fertilization ducts short, extended transversely (Fig. 49A–B).

Distribution

China (Guizhou) (Fig. 61).