Stegana (Steganina) cylindrica Wang &amp; Gao &amp; Chen 2013, sp. nov.
Creators: name: Wang, Le
name: Gao, Jian-Jun
name: Chen, Hong-Wei
Publisher: name: Zenodo
Year: 2013
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Diptera
Drosophilidae
Stegana
Stegana cylindrica

description: <i>Stegana</i> (<i>Steganina</i>) <i>cylindrica</i> sp. nov. (Figure 2) <i>Diagnosis</i> This species is similar to <i>S. cyclophylla</i> Chen and Chen, 2009a from south-western China in the surstylus lacking serrated, minute processes on outer surface and the hypandrium slightly square anteromedially, can be differentiated from it by having the cercus lacking pubescence (Figure 2A), the dorsal projection of gonopods slightly triangularly expanded in ventral view, not curved dorsad (Figure 2F). In <i>S. cyclophylla</i>: the cercus with dense pubescence dorsally (as in Chen and Chen 2009a, fig. 8); the dorsal projection of gonopods slender and strongly curved dorsad (as in Chen and Chen 2009a, fig. 13). <i>Description</i> Frons slightly dark brown, lacking minute setulae. Fronto-orbital plate yellow above, brown below. Pedicel dark brown, yellow medially; first flagellomere dark brown. Face black on upper two-thirds, yellow on lower margin. Clypeus brown medially, yellow laterally. Scutum brown medially, yellow laterally. Basisternum yellow. Scutellum brown to black. Wing brown anteriorly, brownish posteriorly, slightly dark on all crossveins. Fore femur with one row of three or four long, suberect setae on ventral surface. Abdominal tergites brown to dark brown medially, narrowly yellow laterally. Sternites mostly yellow, brown on fifth, slightly wider than length. Male terminalia: Surstylus with one prensiseta apically (Figure 2B). Tenth sternite broadened, with pubescence basolaterally (Figure 2C). Paramere distinctly protruded, with ca. two sensilla (Figure 2D, E). Dorsal projection of gonopods with serrated, minute processes (Figure 2F). Aedeagus nearly cylindric in ventral view, with pubescence medially on opening (Figure 2D). <i>Measurements</i> BL = 2.64 mm in holotype (range one &amp;male; and one &amp;female; paratypes: 3.20 in &amp;male;, 2.90 in &amp;female;), ThL = 1.28 mm (1.52 in &amp;male;, 1.31 in &amp;female;), WL = 1.70 mm (1.96 in &amp;male;, 1.90 in &amp;female;), WW = 0.86 mm (1.16 in &amp;male;, 0.97 in &amp;female;), arb = 14 <i>/</i> 8 (15 <i>/</i> 6–8), avd = 0.75 (0.67–0.80), adf = 1.60 (0.86–1.67), flw = 2.40 (1.86–2.50), FW <i>/</i> HW = 0.40 (0.44–0.50), ch <i>/</i> o = 0.22 (0.20–0.25), prorb = 1.20 (1.08–1.33), rcorb = 0.90 (0.45–0.54), vb = 0.29 (0.27–0.37), dcl = 0.39 (0.39–0.41), presctl = 0.50 (0.50–0.65), sctl = 1.53 (2.08–2.17), sterno = 0.52 (0.56–0.57), orbito = 1.60 (1.29–2.00), dcp = 0.19 (0.19–0.22), sctlp = 1.50 (2.13–2.38), <i>C</i> = 1.80 (1.77–1.94), 4c = 1.14 (0.97–1.41), 4v = 1.68 (1.22–2.41), 5x = 1.07 (1.60), ac = 12.50 (15.50–17.50), <i>M</i> = 0.68 (0.45–0.73), C3F = 0.65 (0.69–0.78). <i>Type material</i> Holotype &amp;male; (SCAU, No. 121129) and paratypes one &amp;male;, one &amp;female; (SCAU, Nos 121130, 31), CHINA: Mount Diaoluo, Lingshui, Hainan, 18 ◦ 10 ′ N, 108 ◦ 52 ′ E, altitude 1000 m, 3 December 2003, HW Chen. <i>Etymology</i> From the Greek words: <i>cylindros</i>, referring to the aedeagus being nearly cylindric in lateral view. <i>Distribution</i> China (Hainan).
description: Published as part of <i>Wang, Le, Gao, Jian-Jun &amp; Chen, Hong-Wei, 2013, Ten new species of the subgenus Steganina (Diptera: Drosophilidae: Stegana) from southern China, pp. 1993-2013 in Journal of Natural History (J. Nat. Hist.) (J. Nat. Hist.) 47 (29 - 30)</i> on pages 1997-1999, DOI: 10.1080/00222933.2012.763055, http://zenodo.org/record/5197221
description: {"references": ["Chen XP, Chen HW. 2009 a. Four new species of the subgenus Steganina (Diptera, Drosophilidae) from southern China. Ann Zool. 59: 495 - 501."]}