Leucophenga taiwanensis Lin & Wheeler

Zhou, Lan & Chen, Hong-Wei, 2015, The genus Leucophenga (Diptera, Drosophilidae), part V: the mutabilis species group from East Asia, with morphological and molecular evidence, Zootaxa 4006 (1) : -

Leucophenga taiwanensis Lin & Wheeler

( Figs 2 D, 3G, 3H, 4N, 4O, 11)

Leucophenga taiwanensis Lin & Wheeler, 1972: 253 ; Okada, 1989: 806.

Diagnosis. Pleura yellowish ( Fig. 3 H); 2nd and 3rd abdominal tergites with brown, medially expanded posterior bands ( Fig. 4 N, 4O).

Description. Male and female: Frons yellow to yellowish brown. Pedicel mostly yellowish brown; first flagellomere yellowish. Palpus dark brown in male and female. Mesonotum yellow ( Fig. 3 G). Acrostichal setulae in ca. 12–14 irregular rows ( Fig. 3 G). Scutellum yellow, yellowish along margin ( Fig. 3 G). Halter white ( Fig. 3 H). Male terminalia: Epandrium with 10 setae near posterior margin and caudoventral corner per side ( Fig. 11 A). Paramere with ca. 7 sensilla distally ( Fig. 11 B). Aedeagus slender basally, with pubescence on distal 1/4 ( Fig. 11 B).

Measurements. BL = 2.13–2.80 mm in 5♂, 2.33–3.20 mm in 5♀, ThL = 0.87–1.20 mm in ♂, 1.00– 1.27 mm in ♀, WL = 2.13–2.67 mm in ♂, 2.13–3.00 mm in ♀, WW = 0.87–1.00 mm in ♂, 0.87–1.20 mm in ♀, arb = 4–7/2, avd = 0.80–1.20, adf = 1.67–2.00, flw = 1.67–2.33, FW/HW = 0.32–0.42, ch/o = 0.05–0.07, prorb = 0.57–1.00, rcorb = 0.57–1.00, vb = 0.33–0.67, dcl = 0.25–0.47, presctl = 0.42–0.69, sctl = 0.91–1.64, sterno = 0.55–0.86, orbito = 2.00–2.50, dcp = 0.15–0.25, sctlp = 0.67–1.14, C = 2.40–2.76, 4c = 1.36–1.67, 4v = 2.27–3.20, 5x = 1.60– 1.80, ac = 2.00–2.43, M = 0.67–1.00, C3F = 0.64–0.75.

Specimens examined. CHINA: 4♀ (SCAU, Nos 128190–193), Fushan Park, Qingdao, Shandong, 38°39′N, 104°04′E, 3.x.2013, ex tussock, JJ Gao; 1♂ (SCAU, No. 128090), Lugu, Nantou, Taiwan, 18.x.2012, swept from tussock, HW Chen; 3♂, 7♀ (SCAU, Nos 128091–100), Jianfengling, Ledong, Hainan, 980m, 1.xii.2004, 24.iv.2007, HW Chen; 1♂ (SCAU, No. 128101), Diaoluoshan, Lingshui, Hainan, 1000m, 3.xii.2003, tussocks, HW Chen; 1♀ (SCAU, No. 128102), Yiping, Fusui, Guangxi, 15.viii.2004, 23.xi.2004, HW Chen; 10♂, 10♀ (SCAU, Nos 128103–22), Xianheping, Xingyi, Guizhou, 14–15.vii.2014, ex tree trunks, YL Wang; 30♂, 10♀ (SCAU, Nos 128123–62), Menglun, Mengla, Yunnan, 4.xii.2003, 17.iv.2004, 11,12. iv.2007, 27,28. ix.2011, ex tussocks, HW Chen, JJ Gao; 4♂, 7♀ (SCAU, Nos 128163–73), Wangtianshu, Mengla, Yunnan, 22–24.iv.2007, 13.x.2010, ex tree trunk, HW Chen, JJ Gao; 2♂, 1♀ (SCAU, Nos 128174–76), Yixiang, Puer, Yunnan, 2.x.2011, HW Chen; 5♀ (SCAU, Nos 128177–81), Muyiji Park, Ximeng, Yunnan, 4.iv.2011, ex tussocks, JM Lu, ZF Shao, YR Su, SJ Yan; 1♀ (SCAU, No. 128182), Beibeng, Motuo, Xizang, 30.ix.2010, ex tussock, YR Sui.

Distribution. China (Shandong, Taiwan, Hainan, Yunnan, Xizang).

Figures

FIGURE 3. Thorax of male: A, B. Leucophenga nigripalpis; C, D. L. orientalis; E, F. L. striatipennis; G, H. L. taiwanensis.

FIGURE 4. Color patterns of abdominal tergites of male and female (including all changes examined): A – C. Leucophenga angusta (male and female); D, E. L. bellula (male); F – I. L. magnipalpis (male and female); J. L. nigripalpis (male); K, L. L. orientalis (male and female); M. L. striatipennis (male); N, O. L. taiwanensis (male and female); P. Color legend.

FIGURE 11. Leucophenga taiwanensis Lin & Wheeler, 1972, male: A. Epandrium, surstylus and cercus (lateral view); B. hypandrium, paramere, aedeagus and aedeagal apodeme (lateral view). Scale bar = 0.1 mm.

FIGURE 2. A, B. Head of Leucophenga angusta (A, male; B, female); C. wing of L. striatipennis (male); D. wing of L. taiwanensis (male); E, F. thorax of L. angusta; G, H. thorax of L. bellula; I, J. thorax of L. magnipalpis.