Leucophenga delta Huang & Chen, 2018

Huang, Jia, Wang, Yalian, O’Grady, Patrick Michael, Su, Yirui & Chen, Hongwei, 2018, The genus Leucophenga (Diptera, Drosophilidae), part VIII: twenty-one species from the Oriental region, with morphological and molecular evidence, Zootaxa 4503 (1), pp. 1-70 : 45-46

publication ID	https://doi.org/ 10.11646/zootaxa.4503.1.1
publication LSID	lsid:zoobank.org:pub:5F058E32-AEF1-4070-8CC8-177B4CE140BA
DOI	https://doi.org/10.5281/zenodo.5305161
persistent identifier	https://treatment.plazi.org/id/03EE8C66-FFC1-FFBD-DE81-2108CEE4F97F
treatment provided by	Felipe
scientific name	Leucophenga delta Huang & Chen
status	sp. nov.

Treatment

Leucophenga delta Huang & Chen View in CoL , sp. nov.

( Figs. 3D View FIGURE 3 , 7A–C View FIGURE 7 , 10F View FIGURE 10 , 15A, 15B View FIGURE 15 , 27 View FIGURE 27 )

Diagnosis. This species is most similar to L. valvata sp. nov. in the having the postocellar setae minute ( Figs. 7A View FIGURE 7 , 8M View FIGURE 8 ), the mesonotum and scutellum entirely brownish yellow ( Figs. 7B View FIGURE 7 , 8N View FIGURE 8 ), the pleura lacking stripe above ( Figs. 7C View FIGURE 7 , 8O View FIGURE 8 ), and the wing mostly clouded ( Figs. 3D View FIGURE 3 , 4E View FIGURE 4 ), but can be distinguished from the latter in having the epandrium with pubescence and setae ( Fig. 27A View FIGURE 27 ); surstylus rounded and pubescent ( Fig. 27A View FIGURE 27 ); paramere triangular, apically acute ( Fig. 27C View FIGURE 27 ); aedeagus ventrolaterally with a long process ( Fig. 27D View FIGURE 27 ); see below for that species.

Description. Ocellar triangle dark brown, with ca. 3–5 setae above ocellar setae. Frons brownish to brown ( Fig. 7A View FIGURE 7 ). Orb 3 and Orb 2 parallel ( Fig. 7A View FIGURE 7 ). Pedicel brownish; first flagellomere yellow ( Fig. 7A View FIGURE 7 ). Clypeus entirely brownish. Palpus dark yellow ( Fig. 7A View FIGURE 7 ). Postpronotal lobe brownish yellow ( Fig. 7C View FIGURE 7 ). Acrostichal setulae in ca. 12–14 irregular rows ( Fig. 7B View FIGURE 7 ). Katepisternum and mesopleuron mostly yellow to dark yellow ( Fig. 7C View FIGURE 7 ). Wing ( Fig. 3D View FIGURE 3 ): Costal vein between R 2+3 and R 4+5 distally with ca. 6 or 7 peg-like spinules on ventral surface; R 4+5 and M 1 slightly convergent distally; halter yellow, usually with dark yellow to brownish yellow patches at stem and knob ( Fig. 7C View FIGURE 7 ). Abdominal tergites brownish to black, 2nd tergite yellow submedially and laterally, 3rd tergite not shortened in males, yellow submedially and laterally, 4th tergite yellow submedially and sublaterally ( Fig. 10F View FIGURE 10 ). Male terminalia: Epandrium with ca. 10 setae near posterior margin and ventral corner per side ( Fig. 27A View FIGURE 27 ). Cercus pubescent ( Fig. 27A View FIGURE 27 ). Paramere with ca. 1 sensillum submediodorsally and ca. 4 ones distally ( Fig. 27C View FIGURE 27 ).

Measurements and indices. BL = 4.00 mm in holotype (range in 4♂ and 5♀ paratypes: 3.67–4.00 in ♂, 2.67– 3.13 in ♀), ThL = 2.27 mm (2.00– 2.30 in ♂, 1.43–1.67 in ♀), WL = 3.93 mm (3.43–3.83 in ♂, 2.43–3.07 in ♀), WW = 1.80 mm (1.57–1.73 in ♂, 1.15–1.67 in ♀), arb = 9/5 (7–9/3–5), avd = 0.75 (0.78–1.00), adf = 2.67 (2.00– 2.29), flw = 2.20 (1.53–2.15), FW/HW = 0.38 (0.29–0.38), ch/o = 0.03 (0.02–0.03), prorb = 0.069 (0.55–0.67), rcorb = 0.86 (0.70–0.83), vb = 0.50 (0.44–0.54), dcl = 0.52 (0.47–0.58), presctl = 0.44 (0.45–0.56), sctl = damaged (1.12–1.33), sterno = 0.78 (0.67–0.82), orbito = 1.18 (1.14–1.54), dcp = 0.23 (0.23–0.32), sctlp = 1.16 (1.11–1.29), C = 2.38 (1.98–2.58), 4c = 1.29 (1.15–1.39), 4v = 2.31 (1.76–2.19), 5x = 1.17 (1.06–1.33), ac = 2.42 (2.27–3.31), M = 0.62 (0.53–0.73), C3F = 0.84 (0.77–0.86).

Type specimens. Holotype ♂ ( SCAU, No. 128553), CHINA: Wangtianshu, Mengla , Yunnan, 21°28'N, 101°38'E, alt. 600m, 30.ix.2011, ex tree trunk, HW Chen GoogleMaps . Paratypes: CHINA: 6♂, 6♀ ( SCAU, Nos 128554–65), same data as holotype GoogleMaps ; 1♂ ( SCAU, No. 128566), Wuliangshan, Jingdong , Yunnan, 24°51'N, 100°23'E, alt. 1800m, 27.vii.2006, ex tree trunk, T Li GoogleMaps ; 4♂, 3♀ ( SCAU, Nos 128567–73), Menglun, Mengla , Yunnan, 21°41'N, 101°25'E, alt. 700–780m, 12.ix.2001, 17.iv.2007, 28.ix.2011, ex tussocks, HW Chen, JJ Gao GoogleMaps ; 4♂, 2♀ ( SCAU, Nos 128574– 79), Guanlei, Mengla , Yunnan, 21°38'N, 101°10'E, alt. 562m, 15.x.2012, 20.iv.2016, ex tree trunks, JJ Gao, J Huang, YL Wang GoogleMaps .