Revision of the subgenus Stegana (Steganina) from China, with assessment of species delimitation using DNA barcodes (Diptera, Drosophilidae) Author WANG, YA-LIAN Author LI, BING-XUE Author CUI, MENG-DI Author ZHANG, YUAN Author WANG, LE Author ZHANG, CAI-HONG Author TSAUR, SHUN-CHERN Author CHEN, HONG-WEI Author HUANG, JIA text Zootaxa 2023 2023-03-07 5250 1 1 109 http://dx.doi.org/10.11646/zootaxa.5250.1.1 journal article 53812 10.11646/zootaxa.5250.1.1 da8acfed-df61-403e-9a49-7f856ce56196 1175­5334 7705657 4729EAF3-8B78-4AAD-B373-9179D008F239 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.