Stegana (Steganina) cardua Cui & Chen, sp. nov.

(Figs. 4I, 4J, 20D–F)

Diagnosis. This species differs from the other species of the ornatipes species group in having the large body size (BL ranged from 3.32–3.94 mm in measured specimens); the first flagellomere yellowish; the palpus brownish yellow; the hypoproct with dense thick setae along anterior margin (Fig. 20F).

Description. Female: Frons brown, with 1 thin, yellow longitudinal stripe medially. Face brown, with yellow band medially; facial carina absent. Clypeus brown. Mesonotum brown, with 5 yellow longitudinal stripes (Fig. 4I). Scutellum dark brown (Fig. 4I). Katepisternum yellowish (Fig. 4J). Halter mostly grey (Fig. 4J). Fore femur with 3 or 4 long setae on distal part of posteroventral surface. Abdominal tergites mostly dark brown (Fig. 4I, J); sternites yellowish, about 2 times as wide as long. Female terminalia (Fig. 20D–F): Epiproct with several setae, lacking pubescence (Fig. 20D). Cercus with numerous setae, lacking pubescence (Fig. 20D). Eighth sternite about 2.5 times as wide as long, glabrous on basal 1/2 portion, with numerous prensisetae near posterior margin (Fig. 20E). Hypoproct with numerous setae and much pubescence (Fig. 20F).

Measurements and indices. BL = 3.87 mm in holotype (3.32–3.94 in 3♀ paratypes), ThL = 1.94 mm (1.57– 1.96), WL = 3.99 mm (3.33–4.12), WW = 1.87 mm (1.40–1.81), arb = 9/6 (7–8/5), avd = 0.74 (0.77–0.90), adf = 1.92 (1.38–1.51), flw = 3.56 (2.64–3.12), FW/HW = 0.26 (0.27–0.31), ch/o = 0.07 (0.06–0.08), prorb = 0.79 (0.71– 0.94), rcorb = 0.70 (0.56–0.75), vb = 0.84 (0.59–0.75), dcl = 0.50 (0.39–0.52), presctl = 0.56 (0.55–0.73), sctl = 2.11 (1.36–1.72), sterno = 0.65 (0.64–0.88), orbito = 1.52 (1.56–1.80), dcp = 0.29 (0.29–0.32), sctlp = 1.10 (1.03–1.10), C = 1.61 (1.83–2.13), 4c = 1.39 (1.16–1.31), 4v = 1.86 (1.73–1.90), 5x = 1.50 (1.18–1.62), ac = 9.88 (7.00–8.56), M = 0.68 (0.51–0.69), C3F = 0.55 (0.62–0.68), A = 1.69 (1.64–1.87), H = 0.48 (0.32–0.33).

Type materials. Holotype ♀ (SCAU, Nos.125749, DNA #2327), CHINA: Wanba, Jiulong, Sichuan, 29°04'22''N, 102°02'44''E, alt. 2470m, 5.vii.2017, ex tussock, L. Gong . Paratypes: 3♀ (SCAU, Nos. 125750–52, DNA #2755, 2756), Y. Lin, N.N. Wang, Y.L. Wang, other data same as holotype.

Distribution. China (Sichuan).

Etymology. From the Greek word " carduus " (= thistle), referring to the numerous prensisetae on the 8th sternite.