Leucophenga argentina
Creators: name: Huang, Jia
name: Su, Yirui
name: Chen, Hongwei
Publisher: name: Zenodo
Year: 2017
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Diptera
Drosophilidae
Leucophenga
Leucophenga argentina

description: Leucophenga argentina (de Meijere, 19 24)
(Figs. 2 A, 3A, 3B, 7A, 7B, 10)
Drosophila argentina de Meijere, 1924: 46.
Leucophenga argentina Duda, 1924a: 187; 1926: 49; Okada, 1987: 680.
Diagnosis. This species is mostly similar to L. umbratula in having the wing fuscous along R1 only (Fig. 2 A, F), and the shape of aedeagus (Figs. 10 E, 14D), but can be distinguished from the latter by the color patterns of abdominal tergites in both male (Fig. 7 A) and female (Fig. 7 B), and the paramere narrowed apically (Fig. 10 D); see below that species.
However, the specimens show difference from the latest and most relevant description of L. argentina from Thailand (Okada 1987) in having the wing fuscous along R1 only (Fig. 2 A), while no conspicuous difference could be found in the color patterns of abdominal tergites in male (Fig. 7 A; Fig. 2 G, H in Okada 1987), and the shape of paramere and aedeagus (Fig. 10 D, E; Fig. 2 F in Okada 1987). Therefore, all of the specimens were identified as L. argentina to avoid further confusion.
Description. Ocellar triangle dark brown, with ca. 0–2 seta(e) above ocellar setae. Frons brownish yellow. Pedicel brownish yellow; first flagellomere yellow. Clypeus brownish yellow. Palpus brownish yellow.
Mesonotum brownish yellow, with four interrupted, brown, longitudinal stripes submedially and laterally in male (Fig. 3 A), brownish yellow, brownish before scutellum in female. Postpronotal lobe yellow (Fig. 3 B). Acrostichal setulae in ca. 8–10 irregular rows (Fig. 3 A). Scutellum brownish, dark brown laterally, brownish yellow at tip (Fig. 3 A). Pleura, katepisternum and meron mostly brown above (Fig. 3 B). Wing (Fig. 2 A): Costal vein between R2+3 and R4+5 distally with ca. 4–6 peg-like spinules on ventral surface. Abdominal tergites black, with a pair of yellow patches submedially between 2nd to 4th tergites in male (Fig. 7 A), with a pair of yellow patches submedially between 2nd to 3rd tergites, 4th tergite with a pair of yellow patches subanteromedially in female (Fig. 7 B). Male terminalia: Epandrium with ca. 4 setae near posterior margin per side (Fig. 10 B). Surstylus rounded apically (Fig. 10 B). Hypandrium with 1 sensillum (Fig. 10 C). Paramere with a remarkable wrinkle subdorsally and ca. 5 sensilla aligned above distally (Fig. 10 D).
Measurements. BL = 3.20–3.53 mm in 5♂, 3.33–3.67 mm in 5♀, THL = 1.53–1.63 mm in ♂, 1.53–1.70 mm in ♀, WL = 2.80–3.00 mm in ♂, 2.83–3.07 mm in ♀, WW = 1.27–1.40 mm in ♂, 1.27–1.43 mm in ♀, arb = 6–8/3, avd = 0.71–1.08, adf = 1.50–2.14, flw = 1.75–2.14, FW/HW = 0.35–0.44, ch/o = 0.04–0.07, prorb = 0.53–0.75, rcorb = 0.54–0.79, vb = 0.50–0.71, dcl = 0.39–0.54, presctl = 0.35–0.66, sctl = 1.10–1.37, sterno = 0.77–0.85, orbito = 1.83–2.20, dcp = 0.24–0.36, sctlp = 0.94–1.13, C = 2.35–2.92, 4c = 0.95–1.11, 4v = 1.91–2.26, 5x = 1.10–1.56, ac = 1.33–1.70, M = 0.54–0.74, C3F = 0.83–0.89.
Specimens examined. CHINA: 1♂ (SCAU, No. 128985), Haoping, Ziyang, Shaanxi, 32°36'N, 108°37'E, 470m, 16.viii.2003, ex tussock, JJ Gao; 1♂ (SCAU, No. 128986), Shennongjia, Hubei, 31°29'N, 110°18'E, 1720m, 31.vii.2005, ex tree trunk, HW Chen; 6♂, 2♀ (SCAU, Nos 128987–94), Xianheping, Xinglong, Guizhou, 24°59'N, 105°36'E, 1630m, 16.vii.2014, ex tussocks, QS Gao, L Zhou; 1♂, 1♀ (SCAU, Nos 128997, 98), Hutiaoxia, Diqing, Yunnan, 27°12'N, 100°03'E, 2000m, 22.viii.2011, ex tussocks, HW Chen; 1♂ (SCAU, No. 128984), Cangshan, Dali, Yunnan, 25°41'N, 100°09'E, 2200m, 26.viii.2011, ex tussock, HW Chen; 2♀ (SCAU, Nos 128995, 96), Hesong, Menghai, Yunnan, 21˚50'N, 100˚06'E, 1750m, 11.iv.2011, ex tussocks, SJ Yan.
Distribution. China (Shaanxi, Hubei, Guizhou, Yunnan), Thailand (Kanchanaburi), Indonesia (Sumatra).
description: Published as part of 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, pp. 201-245 in Zootaxa 4247 (3) on pages 214-218, DOI: 10.11646/zootaxa.4247.3.1, http://zenodo.org/record/438516