Scaptodrosophila melanovittata sp. nov.

(Figs 4A–C, 10)

Diagnosis. This species resembles S. trivittata Liu & Chen, 2018 in the pattern on the abdomen tergites and shape of surstylus, but can be distinguished from it by surstylus grown on outer surfaces of the epandrium (Fig. 10A, B); hypandrium shield shaped in ventral view; postgonite weak (Fig. 10C, D). This species exhibits closest genetic affinity to S. nigrolimbata in light of divergence in COI barcodes (Table 2).

Description. Head (Fig. 4A): Frons dark brown. Pedicel dark brown. First flagellomere grayish, margins black. Facial carina yellowish brown, long, narrow, 1/2 the length of face.

Thorax (Fig. 4B, C): Mesonotum yellowish brown. Scutellum yellowish brown. Pleura hazel.

Abdomen (Fig. 4B, C): Tergites III to V yellowish brown with black caudal bands, the caudal bands on tergites II to V interrupted medially.

Male terminalia (Fig. 10A–D): Epandrium with ca. 13 epandrial bristles near posterior and ventral margins per side. Surstylus with 8 peg-like surstylar teeth on caudal margins (Fig. 10A, B). Hypandrium with a pair of paramedian hypandrial bristle. Pregonite with 3 sensilla medially. Phallus lacking pubescence (Fig. 10C, D).

Female terminalia (Fig. 10E): Oviscapt slightly triangular, expanded subapically. Oviscapt narrow with 1 long subapical trichoid ovisensillum, 17 peg-like ovisensilla per side on ventral margins.

Measurements. BL = 2.04 mm in holotype (mm in 3♂ and 1♀ paratypes: 2.00– 2.03 in ♂, 2.10 in ♀), ThL = 0.84 mm (0.89–0.98 in ♂, 0.95 in ♀), WL = 1.96 mm (1.82–1.87 in ♂, 1.94 in ♀), WW = 0.71 mm (0.80–0.82 in ♂, 0.83 in ♀), arb = 4/2 (4/2), avd = 0.83 (0.67–0.92), adf = 2.40 (3.00–3.78), flw = 3.20 (3.31–3.75), FW/HW = 0.27 (0.26–0.29), ch/o = 0.08 (0.08–0.09), prorb = 0.89 (0.78–0.82), rcorb = 0.33 (0.27–0.33), vb = 0.60 (0.43–0.60), dcl = 0.46 (0.36–0.44), presctl = 0.46 (0.40–0.44), sctl = 0.78 (0.78–0.91), sterno = 0.32 (0.45–0.55), orbito = 0.50 (0.50–0.60), dcp = 0.28 (0.32–0.38), sctlp = 1.00 (0.90–1.11), C = 5.33 (5.11–5.15), 4c = 0.60 (0.53–0.64), 4v = 1.73 (1.60–1.79), 5x = 1.33 (1.20–1.75), ac = 1.50 (1.50–1.60), M = 0.40 (0.43–0.47), C3F = 0.56 (0.56–0.63).

Materials examined. Holotype ♂ (SCAU, No. 125121), CHINA: Guanlei, Mengla, Yunnan, 21°38′N, 101°10′E, alt. 621m, 21.iv.2016, J Huang . Paratypes: CHINA: 1♂ (SCAU, No. 125122), Guanlei, Mengla, Yunnan, 21°38'N, 101°10'E, alt. 621m, 21.iv.2016, J Huang ; 1♂ (SCAU, No. 125120), Mengdong, Cangyuan, Yunnan, 23°10'N, 99°13'E, alt. 1323m, 6.v.2016, YQ Liu ; 1♂ (SCAU, No. 125119), Husa, Longchuan, Yunnan, 24°25'N, 97°46'E, alt. 1200m, 20.viii.2016, L Gong ; 1♀ (SCAU, No. 125118), Mengma, Menglian, Yunnan, 22°12'N, 99°22'E, alt. 1060m, 14.iv.2018, HW Chen .

Distribution. China (Yunnan).

Etymology. A combination of the Greek words “ melas ” + “ vittat ”, referring to the black bands of abdomen.