Stegana (Steganina) zebromyia, Wang & Lu & Zhang & Chen, 2021, Wang & Lu & Zhang & Chen, 2021

Wang, Ya-Lian, Lu, Jin-Ming, Zhang, Yuan & Chen, Hong-Wei, 2021, Molecular phylogeny, species delimitation and biogeographic history of the Stegana (Steganina) shirozui species group (Diptera: Drosophilidae) from East Asia, Zoological Journal of the Linnean Society 192, pp. 998-1016 : 1008-1009

STEGANA (STEGANINA) ZEBROMYIA ZHANG & CHEN

( FIGS 4E, F , 7 )

Zoobank registration: u r n: l s i d: z o o b a n k. org:act: 90220A73-AEB1-40E3-9F6D-69C6F1A15FF3

Holotype: ♂ ( SCAU, No. 122179; BOLD process ID BDORF002–13 ), China: Hesong, Menghai , Yunnan, 21.833°N, 100.133°E, 1940 m a.s.l., 10–12.v.2012, tree trunk, H. W. Chen.

Paratype: China: 1♂, 6♀ ( SCAU, Nos 122180–86), same data as holotype ; 1♂, 1♀, ( SCAU, Nos 124707, 08; BOLD process ID BDORF 001– 13 in ♂), same data as holotype except 6.iv.2011, J. M. Lu; 1♂, 4♀ ( SCAU, Nos 121887–91) , Yixiang, Pu’er , Yunnan, 22.700°N, 101.150°E, 1400 m a.s.l., 13.v.2012, ex tree trunks, H. W. Chen .

Etymology: The name refers to the tachinid genus Zebromyia Malloch, 1929, which is so named for its striped abdomen (from Greek ζέβρα, zebra, and Μυια, muscles) referring to the mesoscutum with its longitudinal markings.

Diagnosis: This species resembles S. dianensis Chen & Chen, 2012 in male terminalia ( Fig. 7 ), but can be distinguished from the latter species by mesoscutum being brown, submedially with broad, yellow longitudinal strips ( Fig. 4E, F ), the opening of aedeagus heart-shaped in ventral view ( Fig. 7C ). In S. dianensis : colour patterns of mesoscutum is similar to the new species S. zopheria ( Fig. 4G, H ); opening of aedeagus narrow, slit-like in ventral view (as fig. 10 in Chen & Chen, 2012).

Measurements: BL = 3.33 mm in holotype (3 ♂ and 5♀ paratypes: 3.33–3.53 in ♂, 3.06–3.33 in ♀), THL = 1.80 mm (1.87–1.93 in ♂, 1.47–1.87 in ♀), WL = 2.40 mm (2.53–2.93 in ♂, 2.47–3.47 in ♀), WW = 1.33 mm (1.30–1.40 in ♂, 1.27–1.33 in ♀), arb = 9/5 (8–10/4–6), avd = 0.67 (0.67–0.87), adf = 2.14 (1.40–2.14), flw = 2.14 (1.50–2.14), FW/HW = 0.32 (0.34– 0.40), ch/o = 0.12 (0.08–0.16), prorb = 1.11 (0.86–1.05), rcorb = 0.83 (0.70–0.79), vb = 0.30 (0.19–0.35), dcl = 0.70 (0.56–0.68), presctl = 0.50 (0.40–0.57), sctl = 1.45 (1.40–2.00), sterno = 0.68 (0.67–0.86), orbito = 1.83 (1.71–2.17), dcp = 0.25 (0.22–0.28), sctlp = 1.78 (1.43–2.00), C = 1.87 (1.88–2.20), 4c = 1.14 (1.05–1.19), 4v = 1.38 (1.46–1.91), 5x = 3.00 (1.83–3.00), ac = 12 (10–13), M = 0.71 (0.55–0.67), C3F = 0.72 (0.70–0.80).

Description

Male and female. Head: Frons yellow, with a pair of brown patches medially. First flagellomere yellow, black on distal quarter. Clypeus predominantly yellow. Palpus yellow.

Thorax ( Fig. 4E, F ): Scutellum medially yellow, basally and laterally black.

Male terminalia ( Fig. 7 ): Epandrium broadened on posterior margins, wider than three-fifths of its height, ventrally strongly protruded. Cercus lacking pubescence. Surstylus submedially with c. six prensisetae. Paramere with c. four sensilla. Aedeagus dorsomedially with several serrated processes. Gonopods apically protruded in ventral view; dorsal projection rugose.

Figures

Figure 4. Habitus ofholotypes.A,B.Stegana (Steganina) alianya sp. nov.; C, D. Stegana (Steganina) diodonta sp. nov.; E, F. Stegana (Steganina) zebromyia sp. nov.; G, H. Stegana (Steganina) zopheria sp. nov.

Figure 7. Stegana (Steganina) zebromyia sp. nov. A. epandrium, cercus and surstylus (lateral view); B. surstylus (ventral view); C, D. hypandrium, parameres, aedeagus and aedeagal apodeme (ventral and lateral views); E, F. gonopods (ventral and lateral views). Scale bars: 0.1 mm.