Okinawepipona yty Nguyen & Nguyen & Bozdoğan 2018, sp. nov.

Okinawepipona yty Nguyen, sp. nov. (Figs 1–8) Material examined. Holotype, ♀, pinned (deposited in IEBR), VIETNAM, Y Ty, Bat Xat, Lao Cai (22°37'13.8''N, 103°37'24.7''E), alt. 1850 m, 14.viii.2017, L.T.P. Nguyen, C.Q. Nguyen & Q.H. Bui. Paratypes: VIETNAM: 6 ♀, same data as holotype (3 deposited in IEBR, 3 deposited in VNMN (VNMN.0104–0106)). Diagnosis. This species can be distinguished from other species of genus Okinawepipona by the following combination of characters: propodeum with posterior surface dull, rugose, with oblique striae along the median carina; T 1 in lateral view strongly convex anteriorly and clearly concave dorsally; metasoma black except a narrow orange band at the apical margins of metasomal tergum I and II (incised in the middle); and clypeus with three yellow spots, two at lateral basal margin and the other at the lower middle, near the apical margin. Description. Female. Body length 11–12 mm (holotype: 11.8 mm); fore wing length 11–12 mm (holotype: 11.7 mm). Head in frontal view subcircular, wider than high, about 1.1× as wide as high (Fig.1). Vertex with cephalic foveae small, bearing dense pubescence, situated very close to each other, almost touching to each other; depression for cephalic foveae conspicuous (Fig. 2). Distance from posterior ocelli to apical margin of vertex more than 1.7× distance from posterior ocelli to inner eye margin (Fig. 2). Gena much narrower than eye, in lateral view about 0.7× as wide as eye. Occipital carina complete, present along entire length of gena, but dorsally somewhat weak. Inner eye margins strongly convergent ventrally; in frontal view about 1.3× further apart from each other at vertex than at clypeus. Disc of clypeus in lateral view weakly convex at basal half, then straight to near apical margin; in frontal view about as wide as high (Fig. 1), with basal margin slightly convex medially and distinctly separated from antennal sockets; apical margin deeply emarginate medially, forming sharp tooth on each lateral side (Fig. 1), with two faint ...