Stegana (Stegana) polyrhopalia CAO & CHEN 2010, SP. NOV.
Creators: name: Li, Tong
name: Cao, Huazhi
name: Gao, Jianjun
name: Chen, Hongwei
Publisher: name: Zenodo
Year: 2010
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Diptera
Drosophilidae
Stegana
Stegana polyrhopalia

description: STEGANA (STEGANA) POLYRHOPALIA CAO & CHEN SP. NOV. (FIGS 22–28)   
 Specimens examined: Holotype male, China: Hainan, Ledong, Jianfengling, 700 m, 16.v. 2005, ex tussock, MF Xu (SCAU, no. 120281). Paratypes: one male and one female, same data and place as holotype (SCAU, no. 120282-83).   
 Etymology: A combination of the Greek words polys and rhopalon, referring to the aedeagus with numerous rod-like processes apically.   
 Diagnosis: First flagellomere entirely black. Parameres strongly sclerotized, fused to each other from basal third, with a few sensilla on basal third (Figs 25, 26); aedeagus with c. 16 pairs of short rodlike processes apically (Figs 25, 26).   
 Description: Frons black, with yellow band submedially in male, entirely yellow in female. Face dark brown, with yellow band submedially in male, entirely yellow in female. Clypeus black in male, brown in female. Mesonotum and scutellum dark brown to black in male, brown in female. Katepisternum brown on upper part, white on lower part. Legs yellowish white, fore leg brown on knee; mid and hind leg black each on medial two-thirds and on distal half of femora; all tibiae with two black rings each basally and distally. Fore femur with four setae on distal part of ventral surface. Abdomen with all tergites dark brown to black in male, brown in female. Sternites black. Male terminalia: surstylus with one strong prensiseta on outer surface (Fig. 23). Hypandrium strongly sclerotized anteromedially (Fig. 24). Gonopods with one triangular process posteromedially and two sub-basal processes per side (Fig. 26). Aedeagus membranous ventrally, sclerotized dorsally (Figs 25, 26). Female terminalia: hypoproct with numerous peg-like processes and a few setae, lacking pubescence (Fig. 28).   
 Measurements: BL = 2.13 mm in holotype (one male and one female paratypes: 2.43 mm in male, 2.43 mm in female), ThL = 1.13 mm (1.13 mm in male, 1.28 mm in female), WL = 1.83 mm (1.78 mm in male, 2.07 mm in female), WW = 0.98 mm (1.05 mm in male, 1.12 mm in female). Indices: arb = 9/5 (9/6–9/7), avd = 0.87 (0.66–0.72), adf = 1.50 (1.64–1.75), flw = 2.00 (2.00–2.02), FW/HW = 0.30 (0.33–0.36), ch/o = 0.07 (0.06), prorb = 1.33 (1.15–1.19), rcorb = 1.00 (0.84-damaged), vb = 0.22 (0.25–0.26), dcl = 0.38 (damaged), presctl = 0.58 (damaged), sctl = 1.47 (damaged), sterno = 0.81 (0.76 – damaged), orbito = 2.33 (2.50–2.67), dcp = 0.20 (0.22–0.25), sctlp = 1.11 (1.00–1.11), C = 1.98 (1.89–2.02), 4c = 1.21 (1.16– 1.28), 4v = 1.64 (1.64–1.82), 5x = 0.94 (1.11–1.14), ac = 7.83 (7.82–9.09), M = 0.44 (0.51), C3F = 0.64 (0.65–0.70).   
 Distribution: China (Hainan).
description: Published as part of Li, Tong, Cao, Huazhi, Gao, Jianjun & Chen, Hongwei, 2010, A revision of the subgenus Stegana (s. s.) (Diptera, Drosophilidae) from mainland China, pp. 726-739 in Zoological Journal of the Linnean Society 158 (4) on pages 732-733, DOI: 10.1111/j.1096-3642.2009.00575.x, http://zenodo.org/record/10114684