Leucophenga retifoliacea, Huang, Jia, Li, Tong & Chen, Hongwei, 2013

Huang, Jia, Li, Tong & Chen, Hongwei, 2013, The genus Leucophenga (Diptera, Drosophilidae), part III: the interrupta species group from the Oriental region, with morphological and molecular evidence, Zootaxa 3750 (5), pp. 587-600 : 596-598

Leucophenga retifoliacea sp. nov.

( Figs. 2 M, 2N, 2O, 3I, 3J, 8)

Diagnosis. This species can be distinguished from the other species of the interrupta group by having the following characters: aedeagus reticulated basally; aedeagal basolateral process broadened, distally with several serrations on dorsal margin ( Fig. 8 D).

Description. Ocellar triangle yellowish brown, with 2–6 setae above ocellar setae. Frons yellowish brown. Pedicel yellowish brown; first flagellomere yellow. Clypeus yellowish brown. Postpronotal lobe yellow ( Fig. 2 O). Acrostichal setulae in 11–13 irregular rows ( Fig. 2 N). Scutellum yellowish brown ( Fig. 2 N). Wing ( Fig. 2 M): Costal vein between R2+3 and R4+5 distally with 6–7 peg-like spinules on ventral surface. Halter slightly brownish apically. Abdominal tergites black ( Fig. 3 I, J); second mostly yellow; third with a pair of yellow patches submedially on anterior margin, yellow laterally; fourth to fifth each with 2 pairs of yellow patches submedially on anterior margin, yellow laterally; sixth with yellow patch posteriorly in holotype, with a pair of yellow patches submedially in one female paratype. Male terminalia: Epandrium with ca. 12 setae near posterior margin and ventral corner per side ( Fig. 8 A). Paramere expended and slightly oblong, with distinct wrinkles, lacking sensillum ( Fig. 8 C).

Measurements. BL = 3.67 mm in holotype (range in 1♂ and 1♀ paratypes: 3.60 mm in ♂, 3.73 mm in ♀), THL = 1.93 mm (1.90 mm in ♂, 1.77 mm in ♀), WL = 3.30 mm (2.70 mm in ♂, 3.00 mm in ♀), WW = 1.37 mm (1.17 mm in ♂, 1.47 mm in ♀), arb = 10/4 (8–9/3–4), avd = 0.89 (0.81–0.90), adf = 2.12 (1.88–2.31), flw = 2.00 (2.00–2.13), FW/HW = 0.34 (0.31–0.39), ch/o = 0.03 (0.03–0.06), prorb = 1.27 (0.84), rcorb = 1.03 (0.68), vb = 0.38 (0.43–0.45), dcl = 0.38 (0.38–0.44), presctl = 0.56 (0.47–0.52), sctl = 1.21 (1.15–1.28), sterno = 0.79 (0.69– 0.71), orbito = 2.18 (2.20–2.22), dcp = 0.22 (0.22–0.24), sctlp = 1.24 (1.18–1.43), C = 1.89 (2.20–2.41), 4c = 1.20 (1.16–1.23), 4v = 2.07 (1.85–2.03), 5x = 0.90 (0.76–1.00), ac = 2.94 (2.32–2.72), M = 0.41 (0.42–0.50), C3F = 0.75 (0.89–0.98).

Type specimens. Holotype ♂ (SCAU, No. 121884), CHINA: Hesong, Menghai, Yunnan, 1900m, 9.iv.2011, ex tree trunk, ZF Shao. Paratypes: CHINA: 1♀ (SCAU, No. 121885), same data as holotype; 1♀ (SCAU, No. 121886), Menglun, Mengla, Yunnan, 580m, 22.iv.2007, ex tree trunk, HW Chen; 1♂ (SCAU, No. 121887), Yixiang, Puer, Yunnan, 1400m, 13.v.2012, JJ Gao.

Etymology. A combination of the Latin word “ rete ” (= reticulated) + “foliaceus” (= folium), referring to the aedeagus reticulated.

Distribution. China (Yunnan).

Figures

FIGURE 2. Wing, mesonotum, scutellum and pleura of male: A, B, C. Leucophenga interrupta Duda, 1924; D, E, F. Leucophenga neointerrupta Fartyal & Toda, 2005; G, H, I. Leucophenga bifurcata sp. nov.; J, K, L. Leucophenga quandrifurcata sp. nov.; M, N, O. Leucophenga retifoliacea sp. nov.

FIGURE 3. Patterns of abdominal tergites of male and female: A, B. Leucophenga interrupta; C, D, E, F. L. neointerrupta; G. L. bifurcata sp. nov.; H. L. quandrifurcata sp. nov.; I, J. L. retifoliacea sp. nov.; K. Color legend.

FIGURE 8. Leucophenga retifoliacea sp. nov., male terminalia in lateral view: A. epandrium, surstylus and cercus; B. hypandrium, paramere, gonopods, aedeagus and aedeagal apodeme; C. paramere; D. aedeagus. Scale bars = 0.1 mm.