Scaptodrosophila longiciliata sp. nov.

(Figs 3D–F, 9)

Diagnosis. This species resembles S. fuscilimba Liu & Chen, 2018 in some characters of body colour patterns and shape of hypandrium, but can be distinguished from it by surstylus fused to epandrium (Fig. 9A, B); pregonite expanded, longer than hypandrium (Fig. 9C, D). This species exhibits the closest genetic affinity to S. longispinata in light of divergence in COI barcodes (Table 2).

Description. Head (Fig. 3D): Frons brown. Pedicel dark brown. First flagellomere yellowish brown. Facial carina brown, 1/4 the length of face.

Thorax (Fig. 3E, F): Mesonotum yellowish brown. Scutellum yellowish brown. Pleura yellowish brown.

Abdomen (Fig. 3E, F): Tergites II to V yellowish brown with hazel caudal bands.

Male terminalia (Fig. 9): Epandrium with ca. 10 epandrial bristles near posterior and ventral margins per side. Surstylus with 10 peg-like surstylar teeth on caudal margins (Fig. 9A, B). Hypandrium with a pair of paramedian hypandrial bristle. Pregonite with 2 sensilla medially. Phallus lacking pubescence (Fig. 9C, D).

Measurements. BL = 2.23 mm in holotype (mm in 6♂ paratypes: 1.91–2.31), ThL = 1.00 mm (0.80–0.98), WL = 2.29 mm (1.78–2.16), WW = 0.90 mm (0.80–0.91), arb = 3/2 (3/2), avd = 0.82 (0.86–1.14), adf = 2.00 (1.40–2.20), flw = 2.78 (1.59–2.59), FW/HW = 0.38 (0.29–0.39), ch/o = 0.17 (0.17–0.19), prorb = 0.87 (0.62–0.88), rcorb = 0.77 (0.31–0.95), vb = 0.71 (0.46–1.00), dcl = 0.55 (0.56–0.90), presctl = 0.39 (0.33–0.45), sctl = 1.07 (0.77–1.13), sterno = 0.91 (0.57–0.80), orbito = 0.67 (0.50–0.60), dcp = 0.55 (0.38–0.46), sctlp = 0.61 (0.44–0.75), C = 2.31 (2.47–3.14), 4c = 1.33 (1.00–1.31), 4v = 2.65 (2.25–2.82), 5x = 2.08 (1.50–2.80), ac = 2.80 (2.18–2.83), M = 0.90 (0.50–1.27), C3F = 0.65 (0.60–0.75).

Materials examined. Holotype ♂ (SCAU, No. 125109), CHINA: Botanic Garden, Ruili, Yunnan, 24°01'N, 97°51'E, alt. 1154m, 22.iv.2018, HW Chen . Paratypes: CHINA: 4♂ (SCAU, Nos. 125110, 125116, 125117), Botanic Garden, Ruili, Yunnan, 24°01'N, 97°51'E, alt. 1154m, 22.iv.2018, HW Chen, L Gong, Y Lin ; 1♂ (SCAU, No. 125114), Guanlei, Mengla, Yunnan, 21°38'N, 101°10'E, alt. 621m, 21.iv.2016, J Huang ; 1♂ (SCAU, No. 125115), Mengdong, Cangyuan, Yunnan, 23°10'N, 99°13'E, alt. 1323m, 6.v.2016, YQ Liu ; 1♂ (SCAU, No. 125111), Qimaba, Lüchun, Yunnan, 22°48'N, 102°14'E, alt. 1280m, 3.viii.2016, HW Chen .

Distribution. China (Yunnan).

Etymology. A combination of the Latin words “ longus ” + “ cilium ”, referring to the length of pregonite.