Leucophenga arcuata Huang & Chen

Huang, Jia, Li, Tong, Gao, Jianjun & Chen, Hongwei, 2013, The genus Leucophenga (Diptera, Drosophilidae), part II: the ornata species group from East Asia, with morphological and molecular evidence (I), Zootaxa 3701 (2), pp. 101-147 : 125-126

publication ID	https://doi.org/ 10.11646/zootaxa.3701.2.1
publication LSID	lsid:zoobank.org:pub:872A8545-2050-4016-B0EF-03A49F6A8E3F
DOI	https://doi.org/10.5281/zenodo.5631102
persistent identifier	https://treatment.plazi.org/id/03CF985C-FFB7-EB66-FF78-FC2FFB730547
treatment provided by	Plazi
scientific name	Leucophenga arcuata Huang & Chen
status	sp. nov.

Treatment

Leucophenga arcuata Huang & Chen , sp. nov.

( Figs 2 View FIGURE 2 F, 5A, 5B, 8F, 11A, 11B, 19)

Diagnosis. This species is very similar to L. euryphylla sp. nov. in the shaped of paramere ( Fig. 19 View FIGURE 19 C), and the patterns of wing and abdominal tergites ( Figs 2 View FIGURE 2 F, 8F), but can be distinguished from the latter by having the aedeagus with numerous, minute, serrated processes on base expansion ( Fig. 19 View FIGURE 19 D), the mesonotum yellowish brown anteromedially, dark brown posteromedially and laterally ( Fig. 5 View FIGURE 5 A), the katepisternum mostly brownish ( Fig. 5 View FIGURE 5 B).

Description. Ocellar triangle dark brown, with ca. 3–7 setae above ocellar setae. Frons brown. Pedicel yellowish; first flagellomere yellowish brown. Clypeus dark brown. Mesonotum yellowish brown anteromedially, dark brown posteromedially and laterally in holotype ( Fig. 5 View FIGURE 5 A), sometimes without dark brown in some paratypes. Postpronotal lobe yellow. Acrostichal setulae in ca. 14–15 irregular rows ( Fig. 5 View FIGURE 5 A). Scutellum brown, pale at tip ( Fig. 5 View FIGURE 5 A). Meron yellow ( Fig. 5 View FIGURE 5 B). Wing ( Fig. 2 View FIGURE 2 F): Costal vein between R2+3 and R4+5 distally with ca. 8 peglike spinules on ventral surface. Abdominal tergites brown to dark brown, yellow along lateral margins ( Fig. 8 View FIGURE 8 F); second yellow on median; third with narrow yellow patches submedially along anterior margin; fourth and fifth each with 2 pairs of yellow patches submedially; sixth with M-shaped yellow patch medially. Male terminalia: Epandrium with ca. 15 setae near dorsal margin to ventral corner per side ( Fig. 19 View FIGURE 19 A). Hypandrium with 1 sensillum ( Fig. 19 View FIGURE 19 B). Paramere basally narrow, distally broadened, with ca. 6 sensilla and pubescence ( Fig. 19 View FIGURE 19 C).

Measurements. BL = 4.07 mm in holotype (range in 2♂ and 4♀ paratypes: 3.47–3.93 mm in ♂, 3.20–4.47 mm in ♀), THL = 1.83 mm (1.53–1.73 mm in ♂, 1.60–2.00 mm in ♀), WL = 3.27 mm (2.77–3.07 mm in ♂, 2.88– 3.53 mm in ♀), WW = 1.47 mm (1.30–1.38 mm in ♂, 1.33–1.57 mm in ♀), arb = 8/4 (6–10/3–5), avd = 0.73 (0.70– 0.97), adf = 1.83 (1.67–1.94), flw = 1.78 (1.41–1.87), FW/HW = 0.38 (0.36–0.40), ch/o = 0.02 (0.02–0.03), prorb = 0.59 (0.54–0.68), rcorb = 0.64 (0.51–0.72), vb = 0.54 (0.38–0.47), dcl = 0.45 (0.42–0.53), presctl = 0.51 (0.49– 0.67), sctl = 1.35 (1.28–1.59), sterno = 0.66 (0.63–0.81), orbito = 2.00 (1.77–2.22), dcp = 0.25 (0.23–0.32), sctlp = 1.08 (0.84–1.38), C = 1.92 (1.89–2.12), 4c = 1.54 (1.33–1.59), 4v = 2.00 (1.76–2.14), 5x = 1.14 (0.82–1.10), ac = 3.53 (2.78–3.73), M = 0.62 (0.48–0.63), C3F = 0.90 (0.85–0.89).

Type specimens. Holotype ♂ (SCAU, No. 121577), CHINA: Wuyishan, on the boundary between Fujian and Jiangxi, 27˚43'N, 117˚57'E, alt. 1200m, 14.vi.2004, ex tree trunk, HW Chen. Paratypes: CHINA: 33♂, 35♀ (3♂, 5♀ in KIZ; 30♂, 30♀ in SCAU, Nos 121578 –638), same data as holotype, HW Chen, JJ Gao; 1♂, 3♀ (SCAU, Nos 121639 –42), Mangshan, Yizhang, Hunan, 24°55'N, 112°45'E, alt. 1200m, 3.x.2004, ex tree trunks, HL Cao, MF Xu; 1♀ (SCAU, No. 121643), Conghua, Guangzhou, Guangdong, 23°26'N, 113°30'E, alt. 200m, 24.v.2011, ex tussock, SJ Yan; 1♀ (SCAU, No. 121644), Maoershan, Guilin, Guangxi, 25˚51'N, 110˚27'E, alt. 700m, 23.ix.2006, ex tree trunk, JJ Jiang; 5♂, 2♀ (SCAU, Nos 121646 –52), Sanchahe, Xishui, Guizhou, 28°33'N, 106°24'E, alt. 1000m, 7.viii.2011, ex tussocks, J Huang; 2♀ (SCAU, Nos 121645, 121790), Hesong, Menghai, Yunnan, alt. 1900m, 9.iv.2011, ex tree trunk, ZF Shao.

Etymology. From the Latin word “ arcuatus ” (= arched), referring to the aedeagus shaped.

Distribution. China (Fujian, Jiangxi, Hunan, Guangdong, Guangxi, Guizhou, Yunnan).