Stegana (Steganina) otphylla Cui & Chen, sp. nov.
(Figs. 12G, 12H, 56)
Diagnosis. This species differs from the other Steganina species in having the pregonite basally with a pair of large, pubescent flaps (Fig. 56B, C); the aedeagus distodorsally triangular, distolaterally protruding, with numerous minute, serrated processes near margin (Fig. 56B, C).
Description. Male and female: First flagellomere brown. Clypeus yellow. Mesonotum dark brown to black medially, brown laterally (Fig. 12G). Katepisternum yellowish, brownish on anterior corner (Fig. 12H). Scutellum black, yellow at tip (Fig. 12G).Halter mostly grey (Fig. 12H). Fore femur with a row of 3 or 4 long setae on distal part of posteroventral surface. Abdominal tergites mostly black (Fig. 12G, H); sternites yellow, slightly wider than long. Male terminalia (Fig. 56): Epandrium with ca. 12 setae on dorsal to posterior portions per side (Fig. 56A). Surstylus with some minute, serrated processes on outer surface, 1 peg-like tooth and several setulae near distal margin, lacking pubescence (Fig. 56A). Cercus lacking pubescence (Fig. 56A). Hypandrium expanded anteromedially (Fig. 56B, C). Pregonite fused and large, with 3 sensilla medially (Fig. 56B, C). Aedeagal sheath distally dorsad curved and with several minute, serrated processes (Fig. 55D, E). Subepandrial sclerite slightly expanded distally (Fig. 55F).
Measurements and indices. BL = 2.77 mm in holotype (2.67–3.08 in 3♂, 2.81–3.21 in 2♀ paratypes), ThL = 1.41 mm (1.42–1.49 in ♂, 1.45–1.49 in ♀), WL = 2.67 mm (2.79–2.97 in ♂, 2.82–3.01 in ♀), WW = 1.34 mm (1.13–1.21 in ♂, 1.07–1.28 in ♀), arb = 6/4 (6–7/4–5), avd = 0.72 (0.67–0.86), adf = 0.77 (0.82–1.00), flw = 1.80 (1.67–2.33), FW/HW = 0.40 (0.37–0.41), ch/o = 0.39 (0.28–0.47), prorb = 1.47 (0.71–1.42), rcorb = 1.16 (0.71–0.96), vb = 0.50 (0.46–1.06), dcl = 0.22 (0.22–0.30), presctl = 0.51 (0.34–0.51), sctl = 0.91 (1.14–2.75), sterno = damaged (0.76–1.50), orbito = 2.07 (1.64–2.00), dcp = 0.17 (0.17–0.19), sctlp = 1.17 (1.49–2.51), C = 1.93 (1.59–2.09), 4c = 1.30 (1.14–1.40), 4v = 2.23 (1.72–2.49), 5x = 2.07 (1.22–2.00), ac = 9.33 (9.46–14.00), M = 0.72 (0.50–0.76), C3F = 0.66 (0.54–0.72).
Type materials. Holotype ♂ (SCAU, No.121179, DNA #804), CHINA: Xujiaba, Jingdong, Yunnan, 24°32'38''N, 100°01'30''E, alt. 2200m, 27.vii.2006, ex tree trunk, H.L. Cao . Paratypes: 1♂ (SCAU, No. 121180), other data same as holotype; 1♂ (SCAU, No. 125613, DNA #2186), Wuliangshan, Jingdong, Yunnan, 24°20'40''N, 100°48'01''E, alt. 2200m, 27.vii.2006, ex tree trunk, H.L. Cao; 2♀ (SCAU, Nos. 125611, 12, DNA #2386), Yixiang, Pu'er, Yunnan, 22°44'19''N, 101°07'01''E, alt. 1400m, 13.v.2012, ex tree trunks, J.J. Gao; 1♂ (SCAU, No. 125610, DNA #1880), Fengtongzhai, Baoxing, Sichuan, 30°32'42''N, 102°54'24''E, alt. 1700m, 9.v.2019, ex tussock, L. Gong.
Distribution. China (Sichuan, Yunnan).