Leucophenga acantha 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 : 39-41

publication ID	https://doi.org/ 10.11646/zootaxa.4503.1.1
publication LSID	lsid:zoobank.org:pub:5F058E32-AEF1-4070-8CC8-177B4CE140BA
persistent identifier	https://treatment.plazi.org/id/03EE8C66-FFCB-FFB8-DE81-2203CB23FE7F
treatment provided by	Felipe
scientific name	Leucophenga acantha Huang & Chen
status	sp. nov.

Treatment

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

( Figs. 2G, 2H View FIGURE 2 , 6D–F View FIGURE 6 , 9K View FIGURE 9 , 14C, 14D View FIGURE 14 , 23 View FIGURE 23 )

Diagnosis. This species is most similar to L. brevitabulata sp. nov. in having the pleura with a brown, longitudinal stripe above ( Fig. 6F, O View FIGURE 6 ), and the wing clouded distally ( Figs. 2G View FIGURE 2 , 3C View FIGURE 3 ), but can be distinguished from the latter in

having the abdominal 3rd tergite not shortened in males ( Fig. 9K View FIGURE 9 ); paramere distally curved dorsad ( Fig. 23C View FIGURE 23 ); aedeagus laterally with two long, acute, lapped, distally crossed processes ( Fig. 23D View FIGURE 23 ).

Description. Ocellar triangle dark brown, with ca. 2 or 3 setae above ocellar setae. Frons brownish ( Fig. 6D View FIGURE 6 ). Pedicel brownish yellow; first flagellomere yellow ( Fig. 6D View FIGURE 6 ). Clypeus entirely brownish. Palpus brownish ( Fig. 6D View FIGURE 6 ). Mesonotum mostly brownish yellow ( Fig. 6E View FIGURE 6 ). Postpronotal lobe yellow ( Fig. 6F View FIGURE 6 ). Acrostichal setulae in ca. 12–14 irregular rows ( Fig. 6E View FIGURE 6 ). Scutellum brownish yellow, dark brown laterally, yellow around apical scutellar setae ( Fig. 6E View FIGURE 6 ). Katepisternum and mesopleuron mostly yellow ( Fig. 6F View FIGURE 6 ). Wing ( Fig. 2G, H View FIGURE 2 ): Costal vein between R 2+3 and R 4+5 distally with ca. 5–7 peg-like spinules on ventral surface; R 4+5 and M 1 slightly divergent distally; halter yellowish, usually with brownish patches at stem and knob ( Fig. 6F View FIGURE 6 ). Abdominal tergites brown, 2nd tergite yellow to brownish medially and yellow laterally, 3rd tergite yellow to brownish anteriorly and laterally; 4th and 5th tergites yellow anteriorly in males ( Fig. 9K View FIGURE 9 ). Male terminalia: Epandrium lacking pubescence, with ca. 7 setae near posterior margin per side ( Fig. 23A View FIGURE 23 ). Cercus lacking pubescence ( Fig. 23A View FIGURE 23 ). Surstylus pubescent ( Fig. 23A View FIGURE 23 ). Paramere with ca. 7 sensilla distally ( Fig. 23C View FIGURE 23 ).

Measurements and indices. BL = 3.40 mm in holotype (range in 4♂ and 5♀ paratypes: 2.80–3.53 in ♂, 3.20– 3.47 in ♀), ThL = 1.77 mm (1.37–1.73 in ♂, 1.57–1.73 in ♀), WL = 3.10 mm (2.67–3.07 in ♂, 2.87–3.07 in ♀), WW = 1.35 mm (1.10–1.37 in ♂, 1.20–1.30 in ♀), arb = 6–7/3–4 (6–7/3–4), avd = 1.00 (0.72–0.94), adf = 1.76 (1.88–2.27), flw = 2.06 (1.88–2.27), FW/HW = 0.35 (0.31–0.38), ch/o = 0.04 (0.03–0.04), prorb = 0.063 (0.56– 0.83), rcorb = 0.60 (0.60–0.78), vb = 0.50 (0.42–0.78), dcl = 0.40 (0.36–0.57), presctl = 0.49 (0.40–0.74), sctl = 1.18 (1.23–1.30), sterno = 0.70 (0.67–0.77), orbito = 1.57 (1.64–2.00), dcp = 0.28 (0.21–0.28), sctlp = 1.13 (1.06– 1.19), C = 2.31 (2.16–2.71), 4c = 1.02 (0.95–1.23), 4v = 1.24 (1.28–1.47), 5x = 1.00 (0.82–0.95), ac = 1.70 (1.62– 2.13), M = 0.34 (0.30–0.40), C3F = 0.74 (0.67–0.75).

Type specimens. Holotype ♂ ( SCAU, No. 128583), CHINA: Husa, Longchuan , Yunnan, 24°28'N, 97°45'E, alt. 1227m, 21.viii.2016, ex tree trunk, HW Chen GoogleMaps . Paratypes: CHINA: 2♂, 1♀ ( SCAU, Nos 128584–86), ex tussocks, other data same as holotype GoogleMaps ; 3♂, 4♀ ( SCAU, Nos 128587–93), Botanical Garden, Ruili , Yunnan, 24°01'N, 97°52'E, alt. 1174m, 22.v.2016, ex tussock, J Huang, YL Wang GoogleMaps .