The genus Leucophenga (Diptera, Drosophilidae), part VIII: twenty-one species from the Oriental region, with morphological and molecular evidence Author Huang, Jia Author Wang, Yalian Author O’Grady, Patrick Michael Author Su, Yirui Author Chen, Hongwei hongweic@scau.edu.cn text Zootaxa 2018 2018-10-19 4503 1 1 70 http://dx.doi.org/10.11646/zootaxa.4503.1.1 journal article 10.11646/zootaxa.4503.1.1 1175-5326 5297894 5F058E32-AEF1-4070-8CC8-177B4CE140BA Leucophenga valvata Huang & Chen , sp. nov. ( Figs. 4E , 8M–O , 11J–L , 12A–D , 16I, 16J , 36 ) Diagnosis. This species is most similar to L . delta sp. nov. in the having the postocellar setae minute ( Figs. 7A , 8M ), the mesonotum and scutellum mostly brownish yellow ( Figs. 7B , 8N ), the pleura lacking stripe above ( Figs. 7C , 8O ), and the wing mostly clouded ( Figs. 3D , 4E ), but can be distinguished from the latter in having the epandrium lacking pubescence and seta ( Fig. 36A ); surstylus caudally acute, lacking pubescence, with setae along caudal margin only ( Fig. 36A ); paramere slender, basally acute ( Fig. 36C ); aedeagus distally slightly curved ventrad, laterally with a long, apically narrow process ( Fig. 36D ). There is intraspecific variation in abdominal tergite colour pattern in this species ( Figs. 11J–L , 12A–D ). This species is comprised of a large proportion of “shortened” ( Figs. 11J–L , 12A ) and a few “normal” specimens ( Fig. 12B ), but there is no other conspicuous intraspecific morphological variation between these two kinds of specimens. Therefore, all the specimens were identified as a single new species to avoid further confusion. Description. Ocellar triangle dark brown, with ca. 2 or 3 setae above ocellar setae. Frons brownish ( Fig. 8M ). Orb 3 and Orb 2 parallel ( Fig. 8M ). Pedicel brownish yellow; first flagellomere yellow ( Fig. 8M ). Clypeus entirely brownish. Palpus brownish yellow ( Fig. 8M ). Postpronotal lobe brownish yellow ( Fig. 8O ). Acrostichal setulae in ca. 14–16 irregular rows ( Fig. 8N ). Katepisternum and mesopleuron mostly yellow to dark yellow ( Fig. 8O ). Wing ( Fig. 4E ): mostly clouded; costal vein between R 2+3 and R 4+5 distally with ca. 5–7 peg-like spinules on ventral surface; R 4+5 and M 1 slightly convergent distally; halter mostly yellow, with a dark yellow to dark brown patch at knob ( Fig. 8O ). Abdominal tergites dark brown to black, 2nd tergite usually yellow medially and laterally, 3rd tergite usually yellow anteriorly and laterally, entirely setigerous even in the “shortened” specimens ( Figs. 11J–L , 12A, B ), 4th tergite usually yellow anteriorly ( Figs. 11J–L , 12A–D ). Male terminalia: Cercus lacking pubescence ( Fig. 36A ). Paramere narrow apically, with ca. 7 sensilla distally ( Fig. 36C ). Measurements and indices. BL = 4.13 mm in holotype (range in 5♂ and 5♀ paratrpes: 3.82–4.18 in ♂ , 3.13– 3.53 in ♀ ), ThL = 2.11 mm ( 1.87–2.09 in ♂ , 1.60–1.70 in ♀ ), WL = 3.59 mm ( 3.19–3.49 in ♂ , 2.67–2.83 in ♀ ), WW = 1.59 mm ( 1.43–1.61 in ♂ , 1.20–1.37 in ♀ ), arb = 6–7/4 (6–7/3–4), avd = 1.05 (0.84–1.10), adf = 2.45 (1.89– 2.73), flw = 2.31 (1.87–2.73), FW/HW = 0.24 (0.22–0.34), ch/o = 0.06 (0.03–0.06), prorb = 0.62 (0.60–0.81), rcorb = 0.67 (0.70–0.90), vb = 0.60 (0.44–0.70), dcl = damaged (0.38–0.60), presctl = 0.59 (0.42–0.58), sctl = damaged (1.16–1.25), sterno = damaged (0.59–0.83), orbito = 1.07 (1.16–1.78), dcp = 0.24 (0.23–0.38), sctlp = 1.16 (1.01– 1.33), C = 2.14 (1.78–2.16), 4c = 1.24 (1.14–1.32), 4v = 1.77 (1.51–1.84), 5x = 0.91 (0.85–1.28), ac = 2.66 (2.63– 3.49), M = 0.42 (0.39–0.58), C3F = 0.75 (0.71–0.83). FIGURE 36. Leucophenga valvata Huang & Chen , sp. nov. , 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. Type specimens. Holotype ♂ ( SCAU , No. 128737), CHINA : Muyiji Park , Ximeng , Yunnan , 22°37'N , 99°36'E , alt. 1103m , 4.iv.2011 , ex tussock, JM Lu . Paratypes : CHINA : 16♂ , 7♀ ( SCAU , 128680–96, 128738–42), 1103–1203m , 1–4.iv.2011 , 11.viii.2016 , JM Lu , YR Su , YQ Liu , other data same as holotype ; 1♂ ( SCAU , No. 128743), Jianfengling , Ledong , Hainan , 18˚41'N, 108˚52'E, alt. 220m , 1.xii.2004 , ex tussock, HW Chen ; 2♂ ( SCAU , Nos 128697, 98), Xincheng , Yingjiang , Yunnan , 24°47'N , 98°11'E , alt. 963m , 18.viii.2016 , ex tussock, L Gong ; 1♂ ( SCAU , No. 128508), Husa , Longchuan , Yunnan , 24°28'N , 97°45'E , alt. 1227m , 21.viii.2016 , ex tussock, L Gong ; 4♂ ( SCAU , Nos 128669, 128670, 128671, 128673), Botanical Garden , Ruili , Yunnan , 24°01'N , 97°52'E , alt. 1174m , 22.viii.2016 , ex tree trunks, YQ Liu ; 1♂ ( SCAU , No. 128699), Zhengxing , Jinggu , Yunnan , 23°20'N , 100°58'E , alt. 1100m , 23.vii.2009 , ex tussock, L Wang ; 1♂ ( SCAU , No. 128674), Mengka , Ximeng , Yunnan , 22°44'N , 99°27'E , alt. 2000m , 3.iv.2011 , ex tussock, JM Lu ; 3♂ , 2♀ ( SCAU , Nos 128675–79), Hesong , Menghai , Yunnan , 21°50'N , 100°06'E , alt. 1700m , 2, 11.iv.2011 , ex tussocks, ZF Shao , SJ Yan ; 2♂ , 2♀ ( SCAU , Nos 128700–03), Menglun , Mengla , Yunnan , 21°41'N , 101°25'E , alt. 800–900m , 12.viii.2002 , 19.iv.2007 , ex tussocks, HW Chen ; 6♂ ( SCAU , Nos 128704–09), Guanlei , Mengla , Yunnan , 21°38'N , 101°10'E , alt. 562m , 20.iv.2016 , ex tree trunks, J Huang , YQ Liu , YL Wang , L Zhu ; 2♂ , 2♀ ( SCAU , Nos 128710–13), Wangtianshu , Mengla , Yunnan , 21°28'N , 101°38'E , alt. 570–600m , 30.ix.2011 , 10.v.2012 , 12.xi.2012 , ex tussocks, HW Chen , JJ Gao . Distribution. China ( Hainan , Yunnan ). Etymology. From the Latin word “ valvatus ” (= valvate), referring to the aedeagus laterally with a long process.