Leucophenga fuscivena, Huang, Jia & Chen, Hongwei, 2016

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, Zootaxa 4161 (2), pp. 207-227 : 219-220

publication ID	https://doi.org/ 10.11646/zootaxa.4161.2.4
publication LSID	lsid:zoobank.org:pub:3B388468-4011-4EAB-A5E1-635DE1794536
DOI	https://doi.org/10.5281/zenodo.5627967
persistent identifier	https://treatment.plazi.org/id/03840531-FFD1-FF93-FF45-386645FDFE05
treatment provided by	Plazi
scientific name	Leucophenga fuscivena
status	sp. nov.

Treatment

Leucophenga fuscivena View in CoL sp. nov.

( Figs. 2 View FIGURE 2 C, 3I, 3J, 4A, 4B, 5G–I, 8)

Diagnosis. This species is mostly similar to L. longipenis sp. nov. in having the scutellum laterally dark brown in male ( Figs. 3 View FIGURE 3 I, 4C), and in the color patterns of abdominal tergites in female ( Fig. 5 View FIGURE 5 I, K, L), but can be distinguished from the latter by the color patterns of abdominal tergites in male ( Fig. 5 View FIGURE 5 G, H), and having the aedeagus dorsolaterally with a thin process and distolaterally with an acute process ( Fig. 8 View FIGURE 8 D); see lower that species.

Description. Ocellar triangle brownish, with ca. 0–3 setae above ocellar setae. Frons yellowish in male, brown in female. Pedicel yellowish in male, yellow in female; first flagellomere yellowish in male, yellow in female. Clypeus yellow medially, brownish laterally. Palpus brownish. Mesonotum yellow ( Figs. 3 View FIGURE 3 I, 4A). Postpronotal lobe yellow ( Figs. 3 View FIGURE 3 J, 4B). Acrostichal setulae in ca. 8–10 irregular rows ( Figs. 3 View FIGURE 3 I, 4A). Scutellum yellowish, brownish anteriorly in male ( Fig. 3 View FIGURE 3 I), brownish yellow, black laterally and yellowish at tip in female ( Fig. 4 View FIGURE 4 A). Pleura, katepisternum and meron yellowish to yellow ( Figs. 3 View FIGURE 3 J, 4B). Wing ( Fig. 2 View FIGURE 2 C): Costal vein between R2+3 and R4+5 distally with ca. 5–7 peg-like spinules on ventral surface. Abdominal tergites yellowish, only 3rd to 5th tergites with brownish to black patches in male ( Fig. 5 View FIGURE 5 G, H); only 2nd to 5th abdominal tergites with black patches in female ( Fig. 5 View FIGURE 5 I). Male terminalia: Epandrium pubescent near posterior and ventral margin, with ca. 8 setae near posterior margin and ventral corner per side ( Fig. 8 View FIGURE 8 A). Paramere narrowed basally and apically, with ca. 4 sensilla distally ( Fig. 8 View FIGURE 8 C).

Measurements. BL = 3.00 mm in holotype (range in 3Ƌ and 1♀ paratypes: 2.73–2.87 mm in Ƌ, 2.80 mm in ♀), THL = 1.47 mm (1.33–1.43 mm in Ƌ, 1.40 mm in ♀), WL = 2.57 mm (2.23–2.47 mm in Ƌ, 2.33 mm in ♀), WW = 1.23 mm (1.07–1.13 mm in Ƌ, 1.03 mm in ♀), arb = 6/3 (6–7/3), avd = 0.87 (0.81–0.88), adf = 2.50 (2.29– 2.83), flw = 2.17 (2.00–2.67), FW/HW = 0.26 (0.27–0.32), ch/o = 0.02 (0.02), prorb = 0.65 (0.38–0.70), rcorb = 0.80 (0.68–0.80), vb = 0.33 (0.36–0.45), dcl = 0.50 (0.53–0.63), presctl = 0.61 (0.53–0.56), sctl = 1.17 (1.15–1.19), sterno = 0.82 (0.83–0.91), orbito = 1.13 (1.00–1.33), dcp = 0.29 (0.23–0.36), sctlp = 1.00 (0.86–1.00), C = 1.88 (1.63–2.00), 4c = 1.67 (1.43–1.82), 4v = 2.67 (2.21–2.82), 5x = 1.62 (1.43–1.83), ac = 3.08 (2.80–3.43), M = 0.88 (0.69–0.92), C3F = 0.75 (0.74–0.79).

Type specimens. Holotype Ƌ ( SCAU, No. 128787), CHINA: Menglun, Mengla , Yunnan, 780m, 17.iv.2007, ex tussock, HW Chen . Paratypes: CHINA: 2Ƌ ( SCAU, Nos 128788, 89), same data as holotype ; 1Ƌ, 1♀ ( SCAU, Nos 128790, 91), Mengka, Ximeng , Yunnan, 22°44'N, 99°27'E, 1880m, 3.iv.2011, ex tussocks, JM Lu. GoogleMaps

Distribution. China (Yunnan).

Etymology. A combination of the Latin words “ fuscus ” (= brown) + “ vena ” (= vein), referring to the wing brown on median part of R1.