Leucophenga gracilenta, Huang, Jia, Su, Yirui & Chen, Hongwei, 2017

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 : 235

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.5665949
persistent identifier	https://treatment.plazi.org/id/8C46016E-FF8C-FFCA-FEF0-FF3CFB680495
treatment provided by	Plazi
scientific name	Leucophenga gracilenta
status	sp. nov.

Treatment

Leucophenga gracilenta View in CoL sp. nov.

( Figs. 2 View FIGURE 2 M, 5E, 5F, 9D, 21)

Diagnosis. This species is mostly similar to L. rugatifolia sp. nov. in having the thorax mostly dark colored ( Figs. 5 View FIGURE 5 E, 5F, 6C, 6D), the wing fuscous along R1 only ( Fig. 2 View FIGURE 2 M, Q), and the color patterns of abdominal tergites in both male ( Fig. 9 View FIGURE 9 D, K) and female, but can be distinguished from the latter by the paramere lacking any remarkable wrinkle and sensillum ( Fig. 21 View FIGURE 21 C), and the aedeagus slender, acute apically, slightly expanded distally ( Fig. 21 View FIGURE 21 D); see below that species.

Description. Ocellar triangle dark brown, with ca. 0–1 seta above ocellar setae. Frons brownish yellow. Pedicel brownish yellow; first flagellomere yellow. Clypeus and palpus brownish yellow. Mesonotum brownish, mostly with three broad, brown, longitudinal stripes medially and laterally in male ( Fig. 5 View FIGURE 5 E), brownish yellow, brown before scutellum in female. Postpronotal lobe yellow ( Fig. 5 View FIGURE 5 F). Acrostichal setulae in ca. 8–10 irregular rows ( Fig. 5 View FIGURE 5 E). Scutellum dark brown, brownish yellow at tip ( Fig. 5 View FIGURE 5 E). Pleura mostly brown ( Fig. 5 View FIGURE 5 F). Katepisternum and meron mostly brown in male ( Fig. 5 View FIGURE 5 F), brownish in female. Wing ( Fig. 2 View FIGURE 2 M): Costal vein between R2+3 and R4+5 distally with ca. 4–6 peg-like spinules on ventral surface. Abdominal tergites dark brown ( Fig. 9 View FIGURE 9 D), 2nd tergite with two pairs of yellow patches submedially and laterally, 3rd tergite with a pair of yellow patches subanteromedially. Male terminalia: Epandrium with ca. 4 setae near posterior margin per side ( Fig. 21 View FIGURE 21 A). Surstylus rounded apically ( Fig. 21 View FIGURE 21 A). Hypandrium with 1 sensillum ( Fig. 21 View FIGURE 21 B).

Measurements. BL = 2.73 mm in holotype (range in 1♀ paratype: 2.67 mm), THL = 1.33 mm (1.30 mm), WL = 2.53 mm (2.20 mm), WW = 1.13 mm (1.07 mm), arb = 7/4 (6/3), avd = 0.79 (0.92), adf = 2.33 (1.71), flw = 2.17 (1.71), FW/HW = 0.38 (0.38), ch/o = 0.05 (0.05), prorb = damaged (damaged), rcorb = damaged (damaged), vb = damaged (damaged), dcl = damaged (0.40), presctl = damaged (0.33), sctl = damaged (damaged), sterno = damaged (damaged), orbito = 2.40 (1.75), dcp = 0.27 (0.25), sctlp = 1.14 (1.17), C = 2.22 (2.38), 4c = 1.22 (1.28), 4v = 2.08 (2.38), 5x = 1.35 (1.21), ac = 2.25 (1.95), M = 0.62 (0.59), C3F = 0.84 (0.81).

Type specimens. Holotype ♂ ( SCAU, No. 129015), CHINA: Hesong, Menghai , Yunnan, 1750m, 2.iv.2011, ex tussock, ZF Shao . Paratype: CHINA: 1♀ ( SCAU, No. 129016), same data as holotype .

Distribution. China (Yunnan).

Etymology. From the Latin word “ gracilis ” (= thin), referring to the aedeagus slender.