Leucophenga bicuspidata Huang & Chen, 2016, sp. nov.
Creators: name: Huang, Jia
name: Chen, Hongwei
Publisher: name: Zenodo
Year: 2016
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Diptera
Drosophilidae
Leucophenga
Leucophenga bicuspidata

description: Leucophenga bicuspidata sp. nov.
(Figs. 2 B, 3E–H, 5E, 5F, 7)
Diagnosis. This species resembles L. argentata in having the mesonotum and scutellum entirely yellowish in male (Fig. 3 A, E), and in the color patterns of abdominal tergites in female (Fig. 5 D, F), but can be distinguished from the latter by having the paramere nearly triangular (Fig. 7 C), and the aedeagus distolaterally with two acute processes each bearing a sensillum at tip (Fig. 7 D).
Description. Ocellar triangle brown, with ca. 0–2 setae above ocellar setae. Frons yellowish to yellow in male, yellow in female. Pedicel yellowish in male, yellow in female; first flagellomere yellow. Clypeus brownish. Palpus brownish. Mesonotum brownish yellow in female (Fig. 3 G). Postpronotal lobe yellowish in male (Fig. 3 F), yellow in female (Fig. 3 H). Acrostichal setulae in ca. 8–10 irregular rows (Fig. 3 E, G). Scutellum brownish, black laterally and yellow at tip in female (Fig. 3 G). Pleura, katepisternum and meron yellow to yellowish (Fig. 3 F, H). Wing (Fig. 2 B): Costal vein between R2+3 and R4+5 distally with ca. 6–8 peg-like spinules on ventral surface. Third to 6th abdominal tergites with black patches in male (Fig. 5 E); all abdominal tergites with black patches in female (Fig. 5 F). Male terminalia: Epandrium pubescent medially and near posterior margin, with ca. 7 setae near posterior margin and ventral corner per side (Fig. 7 A). Paramere narrowed basally and apically, with ca. 1 sensillum submedially and ca. 4 ones distally (Fig. 7 C).
Measurements. BL = 2.47 mm in holotype (range in 1Ƌ and 2♀ paratypes: 2.77 mm in Ƌ, 3.27–3.33 mm in ♀), THL = 1.27 mm (1.33 mm in Ƌ, 1.60–1.63 mm in ♀), WL = 2.20 mm (2.33 mm in Ƌ, 2.73–2.80 mm in ♀), WW = 1.03 mm (1.07 mm in Ƌ, 1.23 mm in ♀), arb = 6/2 (6–7/2–3), avd = 0.80 (0.81–0.88), adf = 3.00 (2.67), flw = 2.40 (2.17–2.67), FW/HW = 0.27 (0.25–0.35), ch/o = 0.02 (0.02–0.03), prorb = 0.69 (0.67–0.85), rcorb = 0.88 (0.76–0.90), vb = 0.33 (0.33–0.36), dcl = 0.45 (0.53), presctl = 0.35 (0.43–0.77), sctl = 1.25 (1.15), sterno = 0.67 (0.62–0.71), orbito = 1.00 (1.00–1.14), dcp = 0.29 (0.27–0.33), sctlp = 1.00 (0.90–1.06), C = 2.33 (1.64–2.08), 4c = 1.50 (1.47–1.55), 4v = 2.75 (2.35–2.47), 5x = 1.69 (1.41–1.53), ac = 2.40 (2.27–3.00), M = 0.92 (0.71–0.76), C3F = 0.75 (0.78–0.80).
Type specimens. Holotype Ƌ (SCAU, No. 128783), CHINA: Beibeng, Motuo, Xizang, 29°14'N, 95°10'E, 1110m, 2.x.2010, ex tussock, JJ Gao. Paratypes: CHINA: 1Ƌ (SCAU, No. 128786), Muyiji Park, Ximeng, Yunnan, 1100m, 4.iv.2011, ex tussock, ZF Shao; 2♀ (SCAU, Nos 128784, 85), Menglun, Mengla, Yunnan, 780m, 12.iv.2007, ex tussocks, HW Chen.
Distribution. China (Yunnan, Xizang).
Etymology. A combination of the Latin words “ bi- ” (= two) + “ cuspidatus ” (= acute), referring to the aedeagus distolaterally with two acute processes.
description: Published as part of Huang, Jia & Chen, Hongwei, 2016, The genus Leucophenga (Diptera, Drosophilidae), part VI: the argentata species group from the East Asia, with morphological and molecular evidence, pp. 207-227 in Zootaxa 4161 (2) on pages 218-219, DOI: 10.11646/zootaxa.4161.2.4, http://zenodo.org/record/264548