Orchestina colubrina Liu, Henrard & Xu, 2019

Figs 2, 3, 7E, 7F

Orchestina colubrina Liu, Henrard & Xu, in Liu et al. 2019: 246, figs 10A-H, 11A-F.

Material examined.

1♂ (SYNU-841), China, Yunnan, Mengla Co., Menglun Town, XTBG, trunk traps, Paramichella baillonii plantation (21°54.772'N, 101°16.043'E), elev. 556 m, 16-31 May 2007, Zheng leg. ; 1♂ 1♀ (SYNU-845-846), same data as above; 3♀ (SYNU-847-849), same data as above; 1♂ (SYNU-843), XTBG, Fogging, same locality as above, 18 July 2007, Zheng leg. ; 1♂ (SYNU-842), XTBG, fogging, rubber plantation (21°54.463'N, 101°15.978'E), elev. 569 m, 21 July 2007, Zheng leg.; 1♂ (SYNU-844), XTBG, trunk traps, rubber plantation (21°55.551'N, 101°16.923'E), elev. 561 m, 1-15 June 2007, Zheng leg.

Type material (unexamined).

Holotype ♀, China, Jiangxi Province: Ji’an City, Jinggangshan County Level City, Ciping Town, Xingzhou Vill., forest, 26.519°N, 114.193°E, 514m, 3.X.2015, Keke Liu, Zeyuan Meng, Lei Zhang, Jianyun Wen and Tianming Wang leg. (OON 75). Paratype: 1♀, collected together with the holotype (OON 76).

Diagnosis.

Males of Orchestina colubrina is similar to O. multipunctata Liu, Xiao & Xu, 2016 (female unknown) in having a strongly swollen palpal tibia, the tube-shaped embolus and the same kind of modified setae in the labium, but can be distinguished by the triangle shaped bulb (Fig. 7E, F) vs. drop-shaped (Liu et al. 2016, fig. 8H, I). Females of O. colubrina resemble to those of O. yinggezui Tong & Li, 2011 in having the long lateral extensions (Ex) surrounding anterior uterine sclerite (AUS), but can be distinguished by the narrow cylindrical sclerite (AUS) having Y-shaped lateral protrusions (Fig. 3H, I), vs. AUS with circular protrusions in O. yinggezui (Tong and Li 2011: fig. 5H, 10B).

Description.

Male (SYNU-841). Total length 1.33, carapace length 0.72, carapace width 0.48, abdomen length 0.63. Habitus as in Fig. 2A, B. Color in alcohol: pale yellow. Carapace oval, with net-shaped pattern, pars cephalica strongly elevated in lateral view, with rounded posterolateral corners. Clypeus (Fig. 2D, F) margin unmodified, curved downwards in front view, sloping forward in lateral view. Sternum (Fig. 2E) longer than wide, with marginal band of tiny dark spots, surface smooth. Mouthparts (Fig. 2D, F): chelicerae straight, with a single distal long setae; labium rounded, not fused to sternum, anterior margin not indented at middle, with five modified, leaf-shaped setae; endites not strongly sclerotized, without serrula. Abdomen ovoid, with gray ^-shaped pattern. Genitalia (Fig. 7E, F): tibia of palp strongly enlarged, length/width ratio = 1.41, cymbium small; bulb triangle-shaped, about 0.76 times as wide as tibia; tapering apically; sperm duct not strongly sclerotized, barely visible through cuticle; embolus slender, tube-shaped, flattened at tip.

Female (SYNU-846). Same as male except as noted. Body: habitus as in Fig. 3A, B; body length 1.36. Carapace: 0.66 long, 0.51 wide. Clypeus (Fig. 3F): anterior margin straight. Mouthparts: chelicerae shorter; endites simple, with serrula. Abdomen: 0.67 long. Epigaster (Fig. 3G, H): without special external features; internal parts visible through integument. Endogyne (Fig. 3I): with medial cylindrical sclerite (AUS), anterior part of cylindrical sclerite (AUS) with pair of Y-shaped protrusions (Pr); AUS surrounded by narrow hoop (Ex).

Distribution.

China (Jiangxi, Yunnan).