Nine new species of the subgenus Stegana (Oxyphortica) from the Oriental region, with morphological and molecular evidence based on Chinese species (Diptera: Drosophilidae) Author Wang, Nannan Author Zhang, Yuan Author Cheng, Yu Author Chen, Hongwei text Journal of Natural History 2017 2017-09-14 51 33 - 34 1943 1970 http://dx.doi.org/10.1080/00222933.2017.1360960 journal article 10.1080/00222933.2017.1360960 1464-5262 5182851 2FA403F6-5535-40A4-9FD0-ADB9913EDE83 Stegana ( Oxyphortica ) dawa Zhang and Chen , sp. nov. (Figures 2(h), 4(d), 5(i) and 10). Diagnosis This species is related to S . ( O .) chuanjiangi sp. nov. in the colour pattern of body and shapes of aedeagus and gonopods, but can be distinguished by the aedeagus longer than wide, apically straight and slightly bilobed in lateral view ( Figure 10 (d)). Description Clypeus brown. Palpus yellow. Mesoscutum yellow medially, with two pairs of broad, brown longitudinal stripes sublaterally ( Figure 4 (d)). Scutellum brown medially, yellow along margin ( Figure 4 (d)). Katepisternum yellow, slightly brownish anteriorly. Wing greyish basally, greyish brown distally, posterior crossvein and neighbouring longitudinal veins darkened (Figure 2(h)). Abdominal tergites: 1st yellow; 2nd and 3rd yellow medially, dark brown laterally; 4th to 6th almost entirely dark brown, slightly yellow along anteromedially ( Figure 5 (i)). Male terminalia: Epandrium nearly rectangular on posterolateral corners, with dense pubescence and setae ( Figure 10 (a)). Cercus lacking pubescence ( Figure 10 (a)). Surstylus small lobe-shaped, with several setae each basally and apically ( Figure 10 (a, b)). Parameres absent ( Figure 10 (c, d)). Aedeagus broadened mediolaterally and strongly sclerotized except peristome, pubescent ventrally, and with one pair of small projections above peristome; expanded outward on both sides of peristome ( Figure 10 (c, d)). Gonopods broadened to hood-shaped, not bilobed apically ( Figure 10 (e)). Figure 10. Stegana (Oxyphortica) dawa Zhang and Chen , sp. nov. , male terminalia. (a) epandrium, cercus and surstylus (lateral view); (b) surstylus (ventral view); (c, d) hypandrium, aedeagus and aedeagal apodeme (ventral and lateral views); (e) gonopods. Scale lines = 0.1 mm. Measurements BL = 2.24 mm in holotype (range in five males and five females paratypes : 2.72–3.60 mm in males, 3.32–4.10 mm in females), ThL = 1.80 mm ( 1.32–1.68 mm in males, 1.60–1. 84 mm in females), WL = 3.08 mm ( 2.52–2.88 mm in males, 2.72–3.40 mm in females), WW = 1.52 mm ( 1.20–1.36 mm in males, 1.33–1.64 mm in females), arb = 4/3 (4–6/3), avd = 0.54 (0.60–0.92), adf = 2.60 (1.29–3.67), flw = 1.60 (1.50–3.75), FW/HW = 0.38 (0.28– 0.44), ch/o = 0.14 (0.13–0.19), prorb = 1.05 (0.80–1.20), rcorb = 0.79 (0.50–0.71), vb = 0.63 (0.43–0.75), dcl = 0.50 (0.35–0.52), presctl = 0.50 (0.38–0.52), sctl = 1.27 (1.08–1.34), sterno = 0.86 (0.71–1.00), orbito = 2.25 (1.20–3.5), dcp = 0.37 (0.26–0.41), sctlp = 0.90 (0.73–1.13), C = 2.33 (1.79–2.65), 4c = 1.00 (0.80–1.00), 4v = 2.00 (1.67–2.04), 5x = 1.67 (1.30–1.70), ac = 6.00 (5.20–6.67), M = 0.63 (0.48–0.57), C3F = 0.80 (0.75–0.87). Type specimens Holotype male ( SCAU , No. 121025), China : Beibeng , Motuo , Xizang , 29°19 ʹ N , 95°20 ʹ E , altitude 780 m , 29 September–1 October 2010 , ex tussock, JJ Gao . Paratypes : China : seven males , eight females ( two males , two females in KIZ , Nos. 0088148–51; five males , six females in SCAU , Nos. 121026–36), same data as holotype, JJ Gao , YR Su , L Wang , L Wu . Etymology The name means ‘moon goddess’ in the language of the Tibet nationality in Xizang , PR China . Distribution China ( Xizang ).