Stegana (subgen. Orthostegana) Hendel

Wang, Ya-Lian, Peng, Zi-Qi, Jin, Feng-Liang, Chen, Hong-Wei & Huang, Jia, 2023, Integrative species delimitation in the morphologically conservative Stegana subgen. Orthostegana (Diptera, Drosophilidae), Arthropod Systematics & amp; Phylogeny 81, pp. 581-610 : 581

Stegana (subgen. Orthostegana) Hendel

Orthostegana Hendel, 1913: 631. Type species: Orthostegana acutangula Hendel, 1913: 632.

Stegana (Orthostegana) Wheeler, 1960: 109; Zhang et al., 2012: 363; Vilela and Bӓchli, 2020.

Stegana (Anastega) Sidorenko, 2002: 14.

Diagnosis.

Midleg tibia basally usually with 4 or 5 strong, erect setae (longer than width of corresponding tibia) on dorsal surface; abdominal tergites mostly dark brown to black except for yellow along lateral margins; aedeagus usually with hairs apically (Figs 12 - 15 , 17 - 20 ) (modified from Zhang et al. 2012).

3.2.1. New species descriptions

Figures

Figure 12. Stegana (Orthostegana) aini Peng & Chen sp. nov., male (A - D) and female terminalia (E). A Epandrium, surstylus, and cercus in lateral view; B Surstylus in ventral view; C, D Hypandrium, phallapodeme, pregonite, aedeagus, and aedeagal sheath in ventral and lateral views; E Eighth sternite in ventral view. Scale bars = 0.1 mm.

Figure 15. Stegana (Orthostegana) fuscofemorata Peng & Chen sp. nov., male terminalia. A Epandrium, surstylus, and cercus in lateral view; B Surstylus in ventral view; C, D Hypandrium, phallapodeme, pregonite, aedeagus, and aedeagal sheath in ventral and lateral views. Scale bars = 0.1 mm.

Figure 17. Stegana (Orthostegana) macrostephana Peng & Chen sp. nov., male (A - D) and female terminalia (E). A Epandrium, surstylus, and cercus in lateral view; B Surstylus in ventral view; C, D Hypandrium, phallapodeme, pregonite, aedeagus, and aedeagal sheath in ventral and lateral views; E Eighth sternite in ventral view. Scale bars = 0.1 mm.

Figure 20. Stegana (Orthostegana) pinguitia Peng & Chen sp. nov., male terminalia. A Epandrium, surstylus, and cercus in lateral view; B Surstylus in ventral view; C, D Hypandrium, phallapodeme, pregonite, aedeagus, and aedeagal sheath in ventral and lateral views. Scale bars = 0.1 mm.