Stegana (Steganina) dianensis sp. nov.

(Figs 7–13)

Diagnosis. This species is related to S. montana sp. nov., but clearly distinguishable from the latter by the scutellum and tenth sternite, in this species: scutellum yellow on distal half; tenth sternite not expanded distally (Fig. 9).

Description. Male terminalia: Epandrium broadened on posterior margins, wider than 3/5 high, pointedly protruded ventrally (Fig. 7). Cercus lacking pubescence (Fig. 7). Surstylus with 8 prensisetae submedially (Fig. 8). Tenth sternite sclerotized and furcated basally (Fig. 9). Paramere with ca. 4–6 sensilla (Figs 10, 11). Aedeagal opening narrow, aperture-like in ventral view (Figs 10, 11). Gonopods slightly roundly protruded, with oval, strong projection dorsomedially (Fig. 13).

Measurements. BL = 2.64 mm in holotype (range in 43 paratypes: 2.35–2.90 mm), ThL = 2.03 mm (1.76– 1.98 mm), WL = 4.20 mm (3.90–4.30 mm), WW = 1.64 mm (1.54–1.68 mm), arb = 6/5 (6/5–7/5), avd = 0.64 (0.64–0.73), adf = 1.38 (1.22–2.38), flw = 1.63 (1.44–1.63), FW/HW = 0.42 (0.42–0.46), ch/o = 0.24 (0.21–0.24), prorb = 0.96 (0.94–0.96), rcorb = 0.68 (0.65–0.67), vb = 0.41 (0.35), dcl = 0.54 (0.39–0.44), presctl = 0.46 (0.41– 0.47), sctl = 1.25 (1.23–1.41), sterno = 0.92 (0.92–0.93), orbito = 1.67 (1.67–2.00), dcp = 0.26 (0.25–0.26), sctlp = 2.09 (2.08–2.10), C = 2.15 (2.11–2.21), 4c = 1.00 (0.93–1.00), 4v = 1.70 (1.49–1.83), 5x = 1.70 (1.55–1.77), ac = 9.40 (9.20–9.33), M = 0.47 (0.44–0.55), C3F = 0.63 (0.63–0.67).

Type material. Holotype 3 (SCAU, No. 120722), CHINA: Mt. Ailao, Jingdong, Yunnan, 24°32' N, 101°01' E, 2450 m, 1–3.viii.2006, HZ Cao. Paratypes: CHINA: 43 (23 in KIZ; 23 in SCAU, Nos 120723, 24), same data as holotype; 13, Samage, Weixi, Yunnan, 27°22' N, 99°51' E, 1900 m, 27.vii.2004, HW Chen (SCAU, No. 120725).

Distribution. China (Yunnan).

Etymology. In reference to the shortened form of Yunnan province of the type locality.