Six new species of the genus Pseudostegana (Diptera: Drosophilidae) from the Oriental region Author Li, Tong Author Gao, Jianjun Author Chen, Hongwei text Journal of Natural History 2010 2010-05-24 44 23 - 24 1401 1418 http://dx.doi.org/10.1080/00222931003679584 journal article 10.1080/00222931003679584 1464-5262 5209709 Pseudostegana insularis sp. nov. ( Figures 1I,J ; 2E ; 7 ) Diagnosis Paramere nearly entirely black, apically slightly bifurcated ( Figure 7D,E ); aedeagus slender distally, expanded dorsomedially in lateral view ( Figure 7E ). Description Only important characters are described here. Head. Ocellar and frons brown. Pedicel brown; first flagellomere greyish yellow on basal two-thirds, greyish black on distal one-third. Face brownish yellow. Clypeus black. Gena yellow. Palpus greyish brown, broadened in male, medially one-third as wide as long. Thorax. Scutum yellow. Pleura glossy brown on upper part, black on lower part. Katepisternal setae two. Scutellum yellow. Legs Yellow, black on hind tibia. Abdomen . Tergites mostly glossy, black. Sternites brown. Male terminalia . Epandrium slightly roundly protruded on ventral margin, with about 18 setae ( Figure 7A ). Surstylus slightly protruded on posteroventral corners, with several setae on outer surface ( Figure 7A,B ). Cercus ventrally elongated in lateral view ( Figure 7A ). Aedeagus apically round in ventral and lateral views ( Figure 7D,E ). Basal process of aedeagus slender ( Figure 7D,E ). Figure 7. Pseudostegana insularis sp. nov. , male. (A) epandrium, cercus and surstylus; (B) surstylus; (C) cercus; (D,E) hypandrium, paramere, gonopods, aedeagus and aedeagal apodeme. For orientations and organizations see Figure 3. Scale bars: 0.1 mm. Measurements BL = 2.75 mm in holotype (range in three female paratypes : 2.59–3.28 mm ), ThL = 1.32 mm ( 1.05–1.28 mm ), WL = 2.56 mm ( 2.04–2.40 mm ), WW = 1.22 mm ( 0.92–1.16 mm ), arb = 8/1 (6/1–7/1), avd = 0.80 (0.71–1.00), adf = 2.50 (1.63–2.13), flw = 2.75 (2.20–2.63), FW/HW = 0.39 (0.41–0.48), ch/o = 0.08 (0.07–0.10), prorb = damaged (0.80–0.92), vb = 0.50 (0.55–0.75), dcl = 0.28 (0.24–0.29), sctl = damaged (0.92–1.36), sterno = 0.75 (0.64–0.74), orbito =0.75 (0.52–0.60), dcp = 0.21 (0.16–0.25), sctlp = 1.25 (1.16–1.25), C = 1.94 (1.76–1.96), 4c = 1.71 (1.50–1.75), 4v = 3.30 (3.10–3.30), 5x = 1.07 (1.00–1.40), ac = 12.8 (12.4–15.0), M = 0.71 (0.58–0.70), C3F = 0.83 (0.76–0.80). Type material Holotype male ( SCAU , No. 120556), China : Mount Jianfengling , Ledong , Hainan , 18°41′ N , 108°52′ E , altitude 800 m , 16 May 2005 , swept over fallen logs and fruits, M.F. Xu . Paratypes : two females ( SCAU , Nos. 120557, -58), same data as for holotype ; one male and one feamle ( SCAU , Nos. 120559, -60), Mount Atuoling , Hainan , 18°20′ N , 109°22′ E , altitude 550 m , 20 April 2007 , swept over fallen logs, T . Li . Etymology From the Latin word: insularis , referring to the type locality. Distribution China ( Hainan ).