Leucophenga pectinata Okada, 1968

Huang, Jia, Li, Tong & Chen, Hongwei, 2014, The genus Leucophenga (Diptera, Drosophilidae), part IV: the ornata species group from the East Asia, with morphological and molecular evidence (II), Zootaxa 3893 (1), pp. 1-55 : 28-29

Leucophenga pectinata Okada, 1968

( Figs 2 E, 2F, 6C, 6D, 10F, 13I, 13J, 22)

Leucophenga pectinata Okada, 1968: 310 ; 1990: 682.

Diagnosis. Wing R2+3 vein without patch apically in male ( Fig. 2 E, F); paramere nearly triangular, broad basally, acute apically ( Fig. 22 C); aedeagus slender, nearly entirely pubescent ( Fig. 22 D).

Description. Ocellar triangle yellowish brown, with 3–5 setae above ocellar setae. Frons brownish to brown. Pedicel brown; first flagellomere yellow. Clypeus dark brown. Palpus brownish yellow. Mesonotum yellowish brown, brown before scutellum ( Fig. 6 C). Postpronotal lobe brownish ( Fig. 6 D). Acrostichal setulae in 14–16 irregular rows ( Fig. 6 C). Scutellum yellowish brown to brown, black along margin ( Fig. 6 C). Pleura with a brown, longitudinal stripe above ( Fig. 6 D). Katepisternum and mesopleuron mostly brownish yellow ( Fig. 6 D). Wing ( Fig. 2 E, F): Costal vein between R2+3 and R4+5 distally with 5–7 peg-like spinules on ventral surface. Abdominal tergites dark brown, with yellow patches ( Fig. 10 F). Male terminalia: Epandrium with pubescence and 10 setae near posterior and ventral margin per side ( Fig. 22 A). Paramere nearly triangular, lacking pubescence, with 7 sensilla distally ( Fig. 22 C).

Measurements. BL = 3.27–4.07 mm in ♂, 3.17–3.67 mm in ♀ (range in 5♂ and 5♀), THL = 1.70–2.20 mm in ♂, 1.57–1.83 mm in ♀, WL = 2.67–3.73 mm in ♂, 2.60–3.02 mm in ♀, WW = 1.17–1.67 mm in ♂, 1.18–1.38 mm in ♀, arb = 7–10/3–4, avd = 0.77–0.94, adf = 1.53–2.00, flw = 1.60–1.94, FW/HW = 0.35–0.40, ch/o = 0.02–0.03, prorb = 0.52–0.65, rcorb = 0.53–0.74, vb = 0.32–0.50, dcl = 0.32–0.53, presctl = 0.45–0.59, sctl = 1.15–1.58, sterno = damaged (0.69–0.81), orbito = 1.50–2.40, dcp = 0.19–0.31, sctlp = 1.10–1.24, C = 1.89–2.15, 4c = 1.41–1.71, 4v = 1.98–2.54, 5x = 0.91–1.33, ac = 2.67–3.63, M = 0.56–0.67, C3F = 0.91–0.98.

Specimens examined. CHINA: 2♂, 4♀ (SCAU, Nos 123065 – 123070), Dabang, Jiayi, Taiwan, 800m, 15.x.2012, ex tree trunks, HW Chen; 1♂ (SCAU, No. 123071), Chebaling, Shaoguan, Guangdong, 24°44'N, 114°12'E, 620m, 26.v.2007, ex around human eyes, JJ Jiang; 1♂ (SCAU, No. 123072), Dinghushan, Zhaoqing, Guangdong, 25°00'N, 112°34'E, 670m, 7.v.2005, ex tree trunk, JJ Jiang; 1♂ (SCAU, No. 123073), Jianfengling, Ledong, Hainan, 900m, 1.xii.2003, ex tussock, HW Chen; 1♂ (SCAU, No. 123074), Nonggang, Chongzuo, Guangxi, 22˚22'N, 106˚51'E, 500m, 24.viii.2004, ex tree trunk, HW Chen; 1♂ (SCAU, No. 123086), Maoershan, Guilin, Guangxi, 25˚51'N, 110˚27'E, 700m, 23.ix.2006, ex tree trunk, JJ Jiang; 7♂, 4♀ (SCAU, Nos 123075 –85), Baping, Fusui, Guangxi, 22°29'N, 107°54'E, 110m, 18.viii.2004, ex tree trunks, HW Chen; 3♂ (SCAU, No. 123087 –89), Menglun, Mengla, Yunnan, 900m, 19.iv.2007, ex tree trunks, HW Chen; 1♀ (SCAU, No. 123090), Menglun, Mengla, Yunnan, 680m, 28.ix.2011, ex tree trunk, JJ Gao; 1♂ (SCAU, No. 123091), Wangtianshu, Mengla, Yunnan, 570m, 23.iv.2007, ex tree trunk, HW Chen; 1♂, 1♀ (SCAU, Nos 122999 – 123000), Baihualing, Baoshan, Yunnan, 26.viii.2013, ex tussock, QS Gao, K Liu.

Distribution. China ( Taiwan, Hunnan, Guangdong, Hainan, Guangxi, Yunnan), Indonesia (West Sumatra).

Figures

FIGURE 2. Wing of male: A. Leucophenga atrinervis; B. L. digmasoma; C. L. multipunctata; D. L. nigrinervis; E. L. pectinata in male; F. L. pectinata in female; G. L. pentapunctata; H. L. quadripunctata; I. L. regina; J. L. trivittata. Scale bars = 1 mm.

FIGURE 6. Dorsal and lateral thorax of male: A, B. Leucophenga nigrinervis; C, D. L. pectinata; E, F, G, H. L. pentapunctata; I, J. L. quadripunctata.

FIGURE 10. Abdominal tergite pattern in male: A. Leucophenga atrinervis; B, C. L. digmasoma; D. L. multipunctata; E. L. nigrinervis; F. L. pectinata; G, H. L. pentapunctata; I, J. L. quadripunctat; K. L. regina; L. L. trivittata.

FIGURE 22. Leucophenga pectinata, male terminalia in lateral view. A. epandrium, surstylus and cercus; B. hypandrium, paramere, gonopods, aedeagus and aedeagal apodeme; C. paramere; D. aedeagus. Scale bars = 0.1 mm.