Leucophenga nigroscutellata Duda, 1924

Huang, Jia, Su, Yirui & Chen, Hongwei, 2017, The genus Leucophenga (Diptera, Drosophilidae), part VII: the subpollinosa species group from China, with morphological and molecular evidence, Zootaxa 4247 (3), pp. 201-245 : 221-223

publication ID	https://doi.org/ 10.11646/zootaxa.4247.3.1
publication LSID	lsid:zoobank.org:pub:0C795602-87DE-412D-ADE4-153702AA887B
DOI	https://doi.org/10.5281/zenodo.5665928
persistent identifier	https://treatment.plazi.org/id/8C46016E-FFBA-FFFE-FEF0-FB5DFF1B01C7
treatment provided by	Plazi
scientific name	Leucophenga nigroscutellata Duda, 1924
status

Treatment

Leucophenga nigroscutellata Duda, 1924 View in CoL

( Figs. 2 View FIGURE 2 D, 3G, 3H, 7E, 7F, 8A, 13)

Leucophenga nigroscutellata Duda, 1924a: 186 View in CoL ; 1924b: 237; Lin & Wheeler, 1972: 249; Okada, 1987: 679.

Diagnosis. This species is mostly similar to L. fuscipedes sp. nov. in having the wing fuscous along R1 and costa ( Fig. 2 View FIGURE 2 D, L), the shape of paramere ( Figs. 13 View FIGURE 13 , 20 View FIGURE 20 C), and the aedeagus ventrolaterally with a thin process bearing a sensillum at tip ( Figs. 13 View FIGURE 13 , 20 View FIGURE 20 D), but can be distinguished from the latter by the color patterns of abdominal tergites in both male ( Fig. 7 View FIGURE 7 E, F) and female ( Fig. 8 View FIGURE 8 A), and the aedeagus rounded apically ( Fig. 13 View FIGURE 13 D); see below that species.

However, the specimens show distinctly differences from the latest and most relevant description of L. nigroscutellata from Malaysia and Indonesia ( Okada 1987) in the paramere ( Fig. 13 View FIGURE 13 C) and aedeagus ( Fig. 13 View FIGURE 13 D) lacking pubescence, and the structure of aedeagus ( Fig. 13 View FIGURE 13 D), while no conspicuous difference could be found in having the thorax mostly dark colored ( Fig. 3 View FIGURE 3 G), and the color patterns of abdominal tergites in both male ( Fig. 7 View FIGURE 7 E, F; Fig. 1 View FIGURE 1 C in Okada 1987) and female ( Fig. 8 View FIGURE 8 A; Fig. 1 View FIGURE 1 D in Okada 1987); moreover, parts of the specimens were collected near the type locality. Therefore, all of the specimens were identified as L. nigroscutellata to avoid further confusion.

Description. Ocellar triangle dark brown, with ca. 0–2 seta(e) above ocellar setae. Frons brownish yellow, with an indistinct, brownish, longitudinal stripe medially. Pedicel brownish yellow; first flagellomere yellow. Clypeus brown. Palpus brownish yellow to brownish. Mesonotum brownish yellow to brownish, mostly with three broad, brown, longitudinal stripes medially and laterally in male ( Fig. 3 View FIGURE 3 G), brownish yellow, brownish before scutellum in female. Postpronotal lobe yellow ( Fig. 3 View FIGURE 3 H). Acrostichal setulae in ca. 8–12 irregular rows ( Fig. 3 View FIGURE 3 G). Scutellum dark brown, brownish yellow at tip ( Fig. 3 View FIGURE 3 G). Pleura, katepisternum and meron mostly brown above ( Fig. 3 View FIGURE 3 H). Wing ( Fig. 2 View FIGURE 2 D): Costal vein between R2+3 and R4+5 distally with ca. 4–7 peg-like spinules on ventral surface. Midleg obviously dark brown on knees. Abdominal tergites brown to black, with a yellow patch medially between 2nd to 3rd tergites in male ( Fig. 7 View FIGURE 7 E), 2nd tergite with a yellow patch medially or posteromedially in female ( Figs. 7 View FIGURE 7 E, 8A), 5th tergite with a pair of yellow patches anteromedially in some female ( Fig. 8 View FIGURE 8 A). Male terminalia: Epandrium with ca. 3 setae near posterior margin per side ( Fig. 13 View FIGURE 13 A). Surstylus rounded apically ( Fig. 13 View FIGURE 13 A). Hypandrium with 1 sensillum ( Fig. 13 View FIGURE 13 B). Paramere with ca. 1 sensillum submediodorsally and ca. 7 sensilla distally ( Fig. 13 View FIGURE 13 C).

Measurements. BL = 2.40–2.70 mm in 5♂, 2.33–2.67 mm in 5♀, THL = 1.00– 1.13 mm in ♂, 0.93–1.17 mm in ♀, WL = 2.07–2.17 mm in ♂, 2.00– 2.23 mm in ♀, WW = 0.93–1.00 mm in ♂, 0.97–1.03 mm in ♀, arb = 6/2–4, avd = 0.82–1.00, adf = 1.57–1.86, flw = 1.71–2.33, FW/HW = 0.33–0.38, ch/o = 0.03–0.05, prorb = 0.62–0.73, rcorb = 0.64–0.80, vb = 0.30–0.50, dcl = 0.27–0.54, presctl = 0.40–0.58, sctl = 1.29–1.41, sterno = 0.67–0.80, orbito = 1.40–2.25, dcp = 0.29–0.39, sctlp = 1.00–1.20, C = 2.07–2.61, 4c = 1.13–1.48, 4v = 2.00–2.61, 5x = 1.75–2.27, ac = 2.29–2.92, M = 0.69–0.91, C3F = 0.72–0.79.

Specimens examined. CHINA: 2♀ ( SCAU, Nos 128945, 46), Wulai, Hsinpei , Taiwan, 490m, 19.x.2012, ex tussock, HW Chen ; 3♂, 3♀ ( SCAU, Nos 128899, 128957–61), Yixiang, Puer , Yunnan, 22°45'N, 101°03'E, 1400m, 12.xii.2012, ex tussocks, HW Chen GoogleMaps ; 2♂, 3♀ ( SCAU, Nos 128952–56), Muyiji Park, Ximeng , Yunnan, 1100m, 2.iv.2011, ex tussocks, YR Su, SJ Yan ; 2♂, 2♀ ( SCAU, Nos 128948–51), Hesong, Menghai , Yunnan, 1750m, 2.iv.2011, ex tussocks, SJ Yan ; 1♀ ( SCAU, No. 128947), Menglun, Mengla , Yunnan, 21°41'N, 101°25'E, 780m, 10.iv.2010, ex tree trunk, YR Su GoogleMaps ; 1♂ ( SCAU, No. 128944), Wangtianshu, Mengla , Yunnan, 21°28'N, 101°38'E, 600m, 25.iv.2007, ex tussock, HW Chen. GoogleMaps