Orchestina dapojing Tong & Yang sp. nov.

Figs 1, 2, 3

Type material.

Holotype ♂ (SYNU-764): China, Yunnan Prov., Dali Bai Autonomous Pref., Dali City, Cangshan Mt., Dapojing, pitfall trapping in forest, 25°34′17"N, 100°08′15"E, 2600 m, Z. Yang leg., 25/1/2010; Paratypes 1 ♀ (SYNU-765), same data as holotype; 1 ♂ (SYNU-766), Cangshan Mt., Jishejing, pitfall trapping in forest, 25°40′29"N, 100°06′36"E, 2600 m, Z. Yang leg., 15/11/2008.

Diagnosis.

The new species is similar to O. apiculata Liu, Xiao & Xu, 2016 in the shape of the bulb and the long psembolus, but can be distinguished by the palpal tibia narrower than the bulb (Fig. 2A) vs. distinctly wider than the bulb in O. apiculata (Liu et al. 2016: fig. 2A, B), triangular labium (Fig. 2D) vs. sub-circular (Liu et al. 2016: figs 1E, 3H), and the tubular anterior uterine sclerite (AUS) (Fig. 3G, H) vs. broad and column-shaped (Liu et al. 2016: fig. 2C, D).

Description.

Male (holotype). Body: habitus as in Fig. 1A, C, E; body length 1.33. Carapace (Fig. 1B): 0.74 long, 0.56 wide; yellow, oval in dorsal view, with net-shaped pattern, pars cephalica slightly elevated in lateral view, with rounded posterolateral corners. Eyes (Fig. 1B, F): well developed, nearly equal-sized; posterior eye row recurved from above. Clypeus (Fig. 1B, F): margin unmodified, curved downwards in front view, sloping forward in lateral view, high, ALE separated from edge of carapace by their diameter or more. Sternum (Fig. 1D): with marginal band and median dark brown patches; setae sparse, needle-like, evenly scattered. Mouthparts (Figs 1D, F, 2D): chelicerae straight, anterior face unmodified; labium triangular, anterior margin not indented at middle, lateral margins slightly sclerotized, labium pattern darkly spotted but medially delimiting 2 pale, adjacent, oval areas; endites unmodified. Abdomen (Fig. 1A, C, E): 0.59 long; with gray net-like pattern; pedicel tube short, unmodified. Palp (Fig. 2A-C): tibia enlarged, length/width ratio = 1.41, more than 2 times as wide as femur; bulb pear-shaped, strongly enlarged, about 1.5 times as wide as tibia; psembolus nearly as long as bulb, whip-like, bent inwards.

Female (SYNU-765): Same as male except as noted. Body: habitus as in Fig. 3A, C, E; body length 1.63. Carapace (Fig. 3B): 0.74 long, 0.57 wide. Abdomen: 0.89 long. Epigaster: without special external features. Endogyne (Fig. 3G, H): with medial tubular sclerite (AUS) extending anteriorly, then flipped posteriorly, ending near epigastric furrow; dorsolateral extension (Ex) interrupted anteriorly.

Affinities.

The new species is similar to O. apiculata and O. clavigera Henrard & Jocqué, 2012 (from Kenya). Based on the long, whip-like psembolus, the tubular anterior uterine sclerite (AUS), and the weakly sclerotized endites, the new species should be classified in the macrofoliata -subgroup of the macrofoliata -group of Henrard and Jocqué (2012).

Etymology.

The specific name is a noun in apposition taken from the type locality.

Distribution.

Known only from the type locality, Yunnan Province, China.