Stegana (Steganina) latifoliacea Wang & 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 latifoliacea

description: Stegana (Steganina) latifoliacea Wang & Chen, sp. nov.
(Figs. 10G, 10H, 47)
Diagnosis. This species is similar to S. (S.) cucullata sp. nov. in the shape of male terminalia (Figs. 34, 47), but can be distinguished from the latter by having the mesonotum brownish yellow (Fig. 10G); the pregonite blurry or absent (Fig. 47C, D).
Description. Male and female: First flagellomere yellow on basal 1/3, brownish on distal 2/3. Clypeus yellow. Katepisternum yellowish (Fig. 10H). Scutellum brownish to dark brown (Fig. 10G). Halter mostly grey (Fig. 10H). Fore femur with a row of 4 setae on distal part of posteroventral surface. Abdominal tergites dark brown medially, brownish laterally in male (Fig. 10G, H), mostly dark brown in female; sternites brownish, slightly wider than long. Male terminalia (Fig. 47): Epandrium with ca. 14 setae on dorsal to posterior portions per side (Fig. 47A). Surstylus with 1 peg-like tooth and several setulae near distal margin, lacking pubescence (Fig. 47A, B). Cercus with much pubescence (Fig. 47A). Hypandrium roundly expanded anteromedially (Fig. 47C, D). Aedeagus dramatically expanded distally, with some pubescence distoventrally (Fig. 47C, D). Aedeagal sheath distally dorsad curved and with several minute, serrated processes (Fig. 47E, F). Subepandrial sclerite slightly vaulted (Fig. 47G).
Measurements and indices. BL = 2.67 mm in holotype (2.54–2.95 in 5♂, 2.79–3.05 in 5♀ paratypes), ThL = 1.30 mm (1.26–1.51 in ♂, 1.19–1.36 in ♀), WL = 1.51 mm (2.14–2.61 in ♂, 2.19–2.64 in ♀), WW = 0.80 mm (0.94–1.14 in ♂, 0.97–1.04 in ♀), arb = 10/6 (7–9/5–7), avd = 1.00 (0.73–0.94), adf = 1.00 (1.00–1.53), flw = 2.29 (1.65–2.29), FW/HW = 0.31 (0.34–0.39), ch/o = 0.14 (0.26–0.34), prorb = 1.25 (0.68–1.34), rcorb = 0.83 (0.71– 1.02), vb = 0.67 (0.63–0.90), dcl = 0.19 (0.38–0.71), presctl = 0.38 (0.43–0.78), sctl = 1.93 (1.65–2.09), sterno = 0.55 (0.62–1.23), orbito = 2.00 (1.56–1.96), dcp = 0.21 (0.27–0.36), sctlp = 1.90 (1.45–1.90), C = 1.83 (1.48–1.91), 4c = 1.21 (1.06–1.29), 4v = 2.00 (1.48–1.86), 5x = 1.13 (1.23–1.74), ac = 11.50 (9.00–14.57), M = 0.47 (0.54–0.72), C3F = 0.63 (0.53–0.68).
Type materials. Holotype ♂ (SCAU, No. 125614, DNA #002), CHINA: Menglun, Mengla, Yunnan, 21°47'29''N, 101°22'59''E, alt. 600m, 16.iv.2007, ex tree trunk, H.W. Chen. Paratypes: 9♂, 5♀ (SCAU, Nos. 125615–28, DNA #1439, 1936), Wangtianshu, Mengla, Yunnan, 21°36'09''N, 101°35'06''E, alt. 660m, 22–25.iv.2007, ex tree trunks, H.W. Chen, J.J. Gao.
Distribution. China (Yunnan).
Etymology. A combination of the Latin words " latus " (= broad) and " foliaceus " (= foliaceous), referring to the distally expanded aedeagus.
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 page 80, DOI: 10.11646/zootaxa.5250.1.1, http://zenodo.org/record/7705657