Leucophenga arcuata Huang & Chen, sp. nov.
Creators: name: Huang, Jia
name: Li, Tong
name: Gao, Jianjun
name: Chen, Hongwei
Publisher: name: Zenodo
Year: 2013
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Diptera
Drosophilidae
Leucophenga
Leucophenga arcuata

description: Leucophenga arcuata Huang & Chen, sp. nov.
(Figs 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 C), and the patterns of wing and abdominal tergites (Figs 2 F, 8F), but can be distinguished from the latter by having the aedeagus with numerous, minute, serrated processes on base expansion (Fig. 19 D), the mesonotum yellowish brown anteromedially, dark brown posteromedially and laterally (Fig. 5 A), the katepisternum mostly brownish (Fig. 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 A), sometimes without dark brown in some paratypes. Postpronotal lobe yellow. Acrostichal setulae in ca. 14–15 irregular rows (Fig. 5 A). Scutellum brown, pale at tip (Fig. 5 A). Meron yellow (Fig. 5 B). Wing (Fig. 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 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 A). Hypandrium with 1 sensillum (Fig. 19 B). Paramere basally narrow, distally broadened, with ca. 6 sensilla and pubescence (Fig. 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).
description: Published as part of 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), pp. 101-147 in Zootaxa 3701 (2) on pages 125-126, DOI: 10.11646/zootaxa.3701.2.1, http://zenodo.org/record/249340