Stegana (Oxyphortica) setifrons Sidorenko, 1997

Huang, Jia, Wang, Nan-Nan, Zhang, Yuan & Chen, Hong-Wei, 2018, Stegana (Oxyphortica) convergens species group (Diptera: Drosophilidae) from the Oriental region, with morphological and molecular evidence, Journal of Natural History 52 (21 - 24), pp. 1473-1492 : 1483

Stegana (Oxyphortica) setifrons Sidorenko

( Figures 4 (a – c) and 5)

Stegana (Oxyphortica) setifrons Sidorenko, 1997: 72 ; Cheng et al., 2010: 58 .

Diagnosis

Gonopod deeply narrowed between the ventral and dorsal processes ( Figure 5 (c,d)): ventral process with long hairs along apical margin; dorsal process apically curved ventrad. This species strongly resembles S. xiaoyangae sp. nov. in the surstylus with 2 strong prensisetae; see under that species.

Specimens examined

One male ( SCAU, No. 122023), CHINA: Wuyishan, on the boundary between Fujian and Jiangxi Provinces , 27.717°N, 117.950°E, altitude 1000 m, 23 July 2009, swept over tussock, HW Chen; 2 males, 1 female ( SCAU, Nos. 122020 – 22), Tianmushan, Linan, Zhejiang, 30.333°N, 119.417°E, altitude 800 m, 1 August 2009 and 2 July 2013, swept over tussocks, K Liu, ZF Shao, SJ Yan; 2 males, 2 females ( KIZ, Nos. 0088148 – 51) and 22 males, 8 females ( SCAU, Nos. 121990 – 2019), Haoping, Meixian, Shaanxi, 32.333°N, 108.517°E, altitude 1200 m, 12, 13 July 2012, swept over tussocks, HW Chen, JJ Gao .

Figures

Figure 4. Colour patterns of abdominal tergites: (a–c) Stegana (Oxyphortica) setifrons; (d) S. (O.) gonglui sp. nov.; (e) S. (O.) xiaoyangae sp. nov.; (f–h) S. (O.) zhulinae sp. nov.; (i) colour legend for Figures 3 and 4.

Figure 5. Stegana (Oxyphortica) setifrons Sidorenko, male terminalia: (a) epandrium (epand), cercus (cerc) and surstylus (sur) (lateral view); (b) surstylus (ventral view); (c, d) hypandrium (hypd), parameres (pm), gonopods (gon), aedeagus (aed) and aedeagal apodeme (aed a) (ventral and lateral views). Scale bars: 0.1 mm.