Stegana (Steganina) yani Li & Chen, sp. nov.

(Figs. 14A, 14B, 63)

Diagnosis. This species is similar to S. (S.) cornuta sp. nov. in the shape of epandrium, surstylus, cercus (Figs. 32A, 32B, 63A), aedeagus (Figs. 32C, 32D, 63B, 63C), and subepandrial sclerite (Figs.32E, 32F, 63D, 63E), but can be distinguished from the latter by having the cercus with sparse pubescence (Fig. 63A); the pregonite blurry or absent (Fig. 63B, C); the subepandrial sclerite nearly triangular (Fig. 63F).

Description. Male and female: First flagellomere brown. Clypeus brown. Mesonotum brownish (Fig. 14A). Katepisternum yellowish (Fig. 14B). Scutellum brown (Fig. 14A). Halter mostly grey (Fig. 14B). Fore femur with a row of 3 long setae on distal part of posteroventral surface. Abdominal tergites dark brown (Fig. 14A, B); sternites dark brown, about 1.2 times as wide as long. Male terminalia (Fig. 63): Epandrium with ca. 12 setae on dorsal to posterior portions per side (Fig. 63A). Surstylus with 1 peg-like tooth and some setulae near distal margin, lacking serrated process and pubescence (Fig. 63A). Hypandrium roundly expanded anteromedially (Fig. 63B, C). Aedeagus with numerous minute, serrated processes distodorsally and much pubescence distoventrally (Fig. 63B, C). Aedeagal sheath distally slender, strongly dorsad curved, and with some minute, serrated processes (Fig. 63D, E).

Measurements and indices. BL = 2.39 mm in holotype (2.25–2.57 in 5♂, 2.47–3.05 in 5♀ paratypes), ThL = 1.07 mm (1.14–1.29 in ♂, 0.99–1.46 in ♀), WL = 2.21 mm (2.12–2.43 in ♂, 2.14–2.66 in ♀), WW = 0.92 mm (0.93–1.04 in ♂, 0.94–1.07 in ♀), arb = 6/4 (6–8/4–5), avd = 0.81 (0.75–0.89), adf = 1.17 (0.80–1.32), flw = 2.00 (1.41–2.22), FW/HW = 0.43 (0.37–0.43), ch/o = 0.34 (0.24–0.42), prorb = 1.17 (0.72–1.36), rcorb = 0.60 (0.69– 0.87), vb = 0.74 (0.68–1.13), dcl = 0.53 (0.65–0.94), presctl = 0.76 (0.46–0.84), sctl = 2.52 (1.25–2.69), sterno = 0.73 (0.64–1.07), orbito = 1.63 (1.61–2.41), dcp = 0.35 (0.31–0.36), sctlp = 1.95 (1.65–2.17), C = 1.87 (1.57–1.84), 4c = 1.23 (0.91–1.36), 4v = 2.06 (1.47–2.19), 5x = 1.13 (1.31–1.82), ac = 9.88 (8.55–11.22), M = 0.56 (0.55–0.76), C3F = 0.62 (0.53–0.70).

Type materials. Holotype ♂ (SCAU, No.125732, DNA #2179), CHINA: Qimaba, Lüchun, Yunnan, 22°49'08''N, 102°17'25''E, alt. 600m, 30.x.2016, ex tussock, H.W. Chen . Paratypes: 1♀ (SCAU, No. 125734, DNA #2182), Er'pu, Lüchun, Yunnan, 22°37'06''N, 102°21'06''E, alt. 600m, 28.x.2016, ex tree trunk, H.W. Chen; 2♂, 3♀ (SCAU, Nos. 125735–39, DNA #2728), Longtan Park, Ximeng, Yunnan, 22°38'55''N, 99°36'02''E, alt. 1150m, 17.iv.2018, ex tree trunks, H.W. Chen, L. Gong, Y. Lin; 1♀ (SCAU, No. 125733, DNA #2188), Botanic Garden, Ruili, Yunnan, 24°04'19''N, 97°49'08''E, alt. 1150m, 22.iv.2018, ex tree trunk, H.W. Chen; 4♂ (SCAU, Nos. 125740–43, DNA #2643, 2744), Menglun, Mengla, Yunnan, 21°47'29''N, 101°22'59''E, alt. 560m, 16,17. iv.2007, ex tree trunks, H.W. Chen, J.J. Gao, F. Zhao.

Distribution. China (Yunnan).

Etymology. From the word " yani " in Hani language from the Hani nationality living in Yunnan, China, referring to the meaning "dreamlike hometown".