Stegana (Steganina) nigripalpula Cui & Chen, sp. nov

Stegana (Steganina) nigripalpula Cui & Chen, sp. nov. (Figs. 5C, 5D, 20G–I) Diagnosis. This species differs from the other species of the ornatipes species group in having the large and black palpus (Fig. 5D); the first flagellomere entirely black. Description. Female: Frons entirely black. Face black, with 1 yellow band medially; facial carina absent. Clypeus black. Mesonotum and scutellum dark brown (Fig. 5C, D). Katepisternum dark brown above, yellowish to yellow below (Fig. 5D). Halter mostly black. Fore femur with 3 long setae on distal half of posteroventral surface. All abdominal tergites black medially, dark brown laterally (Fig. 5C, D); sternites brown, about 3 times as wide as long. Female terminalia (Fig. 20G–I): Epiproct and cercus lacking pubescence (Fig. 20G). Eighth sternite about 2 times as wide as long, glabrous on basal 2/3 portion, with numerous prensisetae near posterior margin (Fig. 20H). Hypoproct with numerous setae and much pubescence (Fig. 20I). Measurements and indices. BL = 2.65 mm in holotype, ThL = 1.33 mm, WL = 2.61 mm, WW = 1.09 mm, arb = 8/6, avd = 0.73, adf = 1.56, flw = 2.83, FW/HW = 0.35, ch/o = 0.11, prorb = 0.95, rcorb = 0.74, vb = 0.57, dcl = 0.59, presctl = 0.67, sctl = damaged, sterno = 0.62, orbito = 1.62, dcp = 0.27, sctlp = 1.46, C = 1.79, 4c = 1.14, 4v = 1.45, 5x = 1.11, ac = 8.00, M = 0.61, C3F = 0.62. Type material. Holotype ♀ (SCAU, No. 125416, DNA #1876, 2787), CHINA: Wangtianshu, Mengla, Yunnan, 21°36'09''N, 101°35'06''E, alt. 570m, 29.ix.2011, ex tree trunk, H.W. Chen. Distribution. China (Yunnan). Etymology. A combination of the Latin words " niger " (= black) and " palpulus '' (= palpus), referring to the black palpus.
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 48, DOI: 10.11646/zootaxa.5250.1.1, http://zenodo.org/record/7705657