Leucophenga rugatifolia sp. nov.

(Figs. 2 Q, 6C, 6D, 9K, 25)

Diagnosis. This species is mostly similar to L. gracilenta sp. nov. in having the thorax mostly dark colored (Figs. 5 E, 5F, 6C, 6D), the wing fuscous along R1 only (Fig. 2 M, Q), and the color patterns of abdominal tergites in both male (Fig. 9 D, K) and female, but can be distinguished from the latter by the paramere with a remarkable wrinkle subdorsally and ca. 8 sensilla aligned above (Fig. 25 C), and the aedeagus slender, acute apically, broadened on posteroventral 1/2, slightly spoon-shaped in lateral view (Fig. 25 D).

Description. Ocellar triangle dark brown, with ca. 1–3 seta(e) above ocellar setae. Frons yellow to brownish yellow, brown laterally. Pedicel brownish yellow; first flagellomere yellow to brownish yellow. Clypeus and palpus brownish yellow. Mesonotum entirely dark brown to black in male (Fig. 6 C), brownish yellow, brownish before scutellum in female. Postpronotal lobe brownish in male (Fig. 6 D), yellow in female. Acrostichal setulae in ca. 12–14 irregular rows (Fig. 6 C). Scutellum entirely dark brown in male (Fig. 6 C), entirely brownish in female, yellow at tip in some female. Pleura, katepisternum and meron mostly dark brown in male (Fig. 6 D), mostly brown in female. Wing (Fig. 2 Q): Costal vein between R2+3 and R4+5 distally with ca. 4–6 peg-like spinules on ventral surface. Abdominal tergites dark brown (Fig. 9 K), 2nd tergite with yellow patches submedially and laterally, 3rd tergite with a pair of yellow patches subanteromedially. Male terminalia: Epandrium with ca. 6 setae near posterior margin per side (Fig. 25 A). Surstylus rounded apically (Fig. 25 A). Hypandrium with 4 sensilla (Fig. 25 B).

Measurements. BL = 3.33 mm in holotype (range in 4♂ and 5♀ paratypes: 3.13–3.47 mm in ♂, 3.33–4.07 mm in ♀), THL = 1.63 mm (1.53–1.60 mm in ♂, 1.53–1.83 mm in ♀), WL = 3.00 mm (2.73–2.87 mm in ♂, 2.73–3.27 mm in ♀), WW = 1.47 mm (1.23–1.30 mm in ♂, 1.23–1.43 mm in ♀), arb = 8/3 (7–8/3), avd = 1.00 (0.76–1.00), adf = 2.50 (2.00–2.57), flw = 2.67 (1.88–2.29), FW/HW = 0.34 (0.32–0.40), ch/o = 0.04 (0.04–0.05), prorb = 0.77 (0.50–0.71), rcorb = 0.81 (0.55–0.65), vb = 0.43 (0.33–0.50), dcl = 0.45 (0.39–0.56), presctl = 0.64 (0.48–0.65), sctl = 1.21 (1.13–1.26), sterno = 0.79 (0.63–0.79), orbito = 2.17 (1.67–2.60), dcp = 0.21 (0.21–0.30), sctlp = 1.00 (1.06–1.29), C = 2.36 (2.12–2.32), 4c = 1.16 (1.00–1.36), 4v = 2.21 (1.70–2.31), 5x = 1.72 (1.33–1.63), ac = 1.91 (1.71–2.23), M = 0.82 (0.57–0.78), C3F = 0.82 (0.79–0.84).

Type specimens. Holotype ♂ (SCAU, No. 129017), CHINA: Kuankuoshui, Suiyang, Guizhou, 28˚15'N, 107˚12'E, 1200m, 11.viii.2011, ex tussock, J Huang . Paratypes: CHINA: 3♂, 2♀ (SCAU, Nos 129018–22), same data as holotype; 1♀ (SCAU, No. 129023), Nanling, Shaoguan, Guangdong, 780m, 6.x.2004, ex tussock, HW Chen ; 1♀ (SCAU, No. 129024), Diaoluoshan, Lingshui, Hainan, 600m, 3.xi.2003, ex tussock, HW Chen ; 1♂, 1♀ (SCAU, Nos 129027, 28), Hesong, Menghai, Yunnan, 1750m, 8.iv.2011, ex tussocks, JM Lu ; 1♂, 1♀ (SCAU, Nos 129025, 26), Wangtianshu, Mengla, Yunnan, 670m, 25.iv.2007, ex tussocks, HW Chen.

Distribution. China (Guangdong, Hainan, Guizhou, Yunnan).

Etymology. A combination of the Latin words “ rugatus ” (= wrinkled) + “ foliaceus ” (= folium), referring to the paramere with a remarkable wrinkle subdorsally.