Stegana (Steganina) minutiflava 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 minutiflava

description: Stegana (Steganina) minutiflava Li & Chen, sp. nov.
(Figs. 11I, 11J, 52)
Diagnosis. This species is similar to S. (S.) cylindrica Wang, Gao, & Chen, 2013 in the shape of male terminalia (as fig. 2 in Wang et al. 2013, Fig. 52), but can be distinguished from the latter by having the surstylus lacking peg-like tooth (Fig. 52A, B); the cercus with much pubescence (Fig. 52A); the aedeagus tubular, lacking pubescence (Fig. 52C, D); the aedeagal sheath lacking serrated process (Fig. 52E, F).
Description. Male and female: First flagellomere brown. Clypeus brownish in male, brown in female. Mesonotum brownish yellow medially, yellow laterally (Fig. 11I). Katepisternum yellowish (Fig. 11J). Scutellum brown, yellow at tip in male (Fig. 11I), brown to black in female. Halter mostly grey (Fig. 11J). Fore femur with a row of 3 long setae on distal part of posteroventral surface. Abdominal tergites medially brownish in male, black in female, yellow laterally (Fig. 11I, J); sternites yellow, about 1.3 times as wide as long. Male terminalia (Fig. 52): Epandrium with ca. 15 setae on dorsal to posterior portions per side (Fig. 52A). Surstylus with some setulae near distal margin, lacking pubescence (Fig. 52A, B). Hypandrium strongly expanded anteromedially (Fig. 52C, D). Pregonite small, with 2 sensilla (Fig. 52C, D). Aedeagus lacking serrated process (Fig. 52C, D). Subepandrial sclerite expanded dorsally (Fig. 52G).
Measurements and indices. BL = 2.75 mm in holotype (2.57–2.99 in 3♂, 2.54–3.14 in 4♀ paratypes), ThL = 1.21 mm (1.39–1.49 in ♂, 1.32–1.56 in ♀), WL = 2.61 mm (2.47–2.61 in ♂, 2.31–3.05 in ♀), WW = 1.23 mm (0.99–1.01 in ♂, 1.01–1.12 in ♀), arb = 6/4 (9–6/6–4), avd = 0.78 (0.69–0.95), adf = 1.14 (0.85–1.30), flw = 2.28 (1.54–2.00), FW/HW = 0.37 (0.35–0.38), ch/o = 0.33 (0.24–0.31), prorb = 0.90 (0.86–1.34), rcorb = 0.68 (0.61–0.79), vb = 0.59 (0.52–0.77), dcl = 0.28 (0.28–0.64), presctl = 0.38 (0.38–0.85), sctl = 2.00 (1.66–2.56), sterno = damaged (0.80–0.96), orbito = 2.33 (1.66–2.00), dcp = 0.17 (0.16–0.21), sctlp = 1.92 (1.59–2.15), C = 1.70 (1.50–1.95), 4c = 1.20 (1.03–1.26), 4v = 1.83 (1.60–2.06), 5x = 1.63 (1.02–1.48), ac = 9.18 (10.22–14.43), M = 0.62 (0.47–0.72), C3F = 0.60 (0.57–0.68).
Type materials. Holotype ♂ (SCAU, No. 125660, DNA #1874), CHINA: Yixiang, Pu'er, Yunnan, 22°44'19''N, 101°07'01''E, alt. 1420m, 13.v.2012, ex tree trunk, H.W. Chen. Paratypes: 1♂ (SCAU, No. 125662, DNA #816), Diaoluoshan, Lingshui, Hainan, 18°43'51''N, 109°51'28''E, alt. 980m, 18.v.2005, ex tree trunk, H.W. Chen; 1 ♂, 1♀ (SCAU, Nos. 125663, 64, DNA #2650), Jinshan, Menglian, Yunnan, 22°19'29''N, 99°35'00''E, alt. 940m, 3.iv.2018, ex tree trunks, H.W. Chen; 1♂, 2♀ (SCAU, Nos. 125665–67, DNA #2698), Botanic Garden, Ruili, Yunnan, 24°04'19''N, 97°49'08''E, alt. 1150m, 22.iv.2018, ex tree trunks, H.W. Chen, L. Gong; 1♀ (SCAU, No. 125661, DNA #2726), Yunjishan, Xinfeng, Guangdong, 24°05'19''N, 114°10'42''E, alt. 530m, 9.xi.2019, ex tree trunk, Z.Q. Peng.
Distribution. China (Guangdong, Hainan, Yunnan).
Etymology. A combination of the Latin words " minutus " (= minute) and " flavus " (= yellow), referring to the small body size and the yellow body color.
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 86-87, DOI: 10.11646/zootaxa.5250.1.1, http://zenodo.org/record/7705657