Stegana (Steganina) flavipes Li & Chen, sp. nov.
Creators: name: WANG, YA-LIAN
name: LI, BING-XUE
name: CUI, MENG-DI
name: ZHANG, YUAN
name: WANG, LE
name: ZHANG, CAI-HONG
name: TSAUR, SHUN-CHERN
name: CHEN, HONG-WEI
name: HUANG, JIA
Publisher: name: Zenodo
Year: 2023
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Diptera
Drosophilidae
Stegana
Stegana flavipes

description: Stegana (Steganina) flavipes Li & Chen, sp. nov.
(Figs. 8E, 8F, 38)
Diagnosis. This species is similar to S. (S.) silvestrella sp. nov. in the shape of male terminalia (Figs. 38, 61), but can be distinguished from the latter by having the small pregonite with 2 sensilla (Fig. 38C, D); the aedeagus lacking serrated process (Fig. 38C, D).
Description. Male and female: First flagellomere brown. Clypeus brownish yellow medially, yellow laterally. Mesonotum brown medially, yellow laterally (Fig. 8E). Katepisternum yellowish (Fig. 8F). Scutellum dark brown to black (Fig. 8E). Halter mostly greyish (Fig. 8F). Fore femur with a row of 4 thin, long setae on distal part of posteroventral surface. Abdominal tergites dark brown medially, yellow laterally (Fig. 8E, F); sternites yellow, about 1.6 times as wide as long. Male terminalia (Fig. 38): Epandrium with ca. 8 setae on dorsal to posterior portions per side (Fig. 38A). Surstylus slightly oval, with some setulae along distal margin and inner surface, lacking pubescence (Fig. 38A, B). Cercus with sparse pubescence (Fig. 38A). Hypandrium expanded anteromedially (Fig. 38C, D). Aedeagus tubular, slightly expanded distally, lacking serrated processes and pubescence (Fig. 38C, D). Aedeagal sheath small, lacking serrated process (Fig. 38E, F). Subepandrial sclerite broadened, slightly squared (Fig. 38G).
Measurements and indices. BL = 2.23 mm in holotype (2.24–2.92 in 5♂, 2.19–2.61 in 5♀ paratypes), ThL = 1.23 mm (1.08–1.43 in ♂, 1.16–1.35 in ♀), WL = 2.21 mm (2.45–2.79 in ♂, 1.91–2.41 in ♀), WW = 1.21 mm (0.93–1.31 in ♂, 0.87–1.01 in ♀), arb = 6/4 (6–7/4–5), avd = 0.82 (0.61–0.90), adf = 0.95 (0.94–1.50), flw = 1.76 (1.33–2.12), FW/HW = 0.39 (0.35–0.44), ch/o = 0.32 (0.26–0.41), prorb = 0.72 (0.58–1.49), rcorb = 0.96 (0.54– 1.04), vb = 0.82 (0.49–1.14), dcl = 0.59 (0.29–0.62), presctl = 0.71 (0.45–0.82), sctl = 1.65 (1.52–3.02), sterno = 1.45 (0.61–1.10), orbito = 1.73 (1.65–2.24), dcp = 0.24 (0.17–0.26), sctlp = 1.71 (1.39–2.00), C = 2.13 (1.63–2.01), 4c = 1.11 (1.09–1.31), 4v = 1.82 (1.77–2.18), 5x = 1.72 (1.21–1.86), ac = 8.79 (9.33–12.11), M = 0.70 (0.50–0.79), C3F = 0.71 (0.53–0.69).
Type materials. Holotype ♂ (SCAU, No. 125671, DNA #1303), CHINA: Wangtianshu, Mengla, Yunnan, 21°36'09''N, 101°35'06''E, alt. 660m, 30.ix.2011, ex tree trunk, H.W. Chen. Paratypes: 1♂, 2♀ (SCAU, Nos. 125655, 72, 73, DNA #2686, 2746), 1♂ on 25.iv.2007, 2♀ on 30.ix.2011, other data same as holotype; 1♂, 2♀ (SCAU, Nos. 125674–76, DNA #2171), Mengdong, Cangyuan, Yunnan, 23°10'08''N, 99°13'52''E, alt. 1320m, 10.v.2016, ex tree trunks, J. Huang; 4♂, 5♀ (SCAU, Nos. 125677–85, DNA #2684), Longtan Park, Ximeng, Yunnan, 22°38'55''N, 99°36'02''E, alt. 1150m, 17.iv.2018, ex tree trunks, L. Gong, Y. Lin.
Distribution. China (Yunnan).
Etymology. A combination of the Latin words " flavus " (= yellow) and "- pes " (= leg), referring to the yellow legs.
description: Published as part of WANG, YA-LIAN, LI, BING-XUE, CUI, MENG-DI, ZHANG, YUAN, WANG, LE, ZHANG, CAI-HONG, TSAUR, SHUN-CHERN, CHEN, HONG-WEI & HUANG, JIA, 2023, Revision of the subgenus Stegana (Steganina) from China, with assessment of species delimitation using DNA barcodes (Diptera, Drosophilidae), pp. 1-109 in Zootaxa 5250 (1) on pages 69-70, DOI: 10.11646/zootaxa.5250.1.1, http://zenodo.org/record/7705657