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 10.11646/zootaxa.5250.1.1 1175­5334 7705657 4729EAF3-8B78-4AAD-B373-9179D008F239 Stegana ( Steganina ) liusanjieae Li & Chen , sp. nov. ( Figs. 10I, 10J , 48 ) Diagnosis. This species is similar to S . ( S .) hirticeps Wang, Gao, & Chen, 2013 in the shape of male terminalia (as fig. 5 in Wang et al. 2013 , Fig. 48A–F ), but can be distinguished from the latter by having the oval cercus ( Fig. 48A ); the aedeagus with numerous minute, serrated processes laterally ( Fig. 48B, C ). Description. Male and female: First flagellomere yellow. Clypeus yellow. Mesonotum slightly brownish medially, yellow laterally ( Fig. 10I ). Katepisternum yellowish ( Fig. 10J ). Scutellum brownish ( Fig. 10I ). Halter mostly white ( Fig. 10J ). Fore femur with a row of 3 long setae on distal part of posteroventral surface. Abdominal tergites mostly yellow ( Fig. 10I, J ); sternites yellow, about 1.6 times as wide as long. Male terminalia ( Fig. 48A–F ): Epandrium with ca . 15 setae on dorsal to posterior portions per side ( Fig. 48A ). Surstylus lacking peg-like tooth and pubescence, with some minute, serrated processes distally and setulae near distal margin ( Fig. 48A ). Cercus lacking pubescence ( Fig. 48A ). Hypandrium roundly expanded anteromedially ( Fig. 48B, C ). Pregonite small, with 2 sensilla ( Fig. 48B, C ). Aedeagus with much pubescence distally ( Fig. 48B, C ). Aedeagal sheath distally dorsad curved and with some minute, serrated processes ( Fig. 48D, E ). Subepandrial sclerite vaulted ( Fig. 48F ). Female terminalia ( Fig. 48G–I ): Epiproct with some setae on distal 1/2 ( Fig. 48G ). Cercus and hypoproct with numerous setae and much pubescence ( Fig. 48G, I ). Eight sternite slightly longer than wide, glabrous on basal 3/4, with some setae and much pubescence on distal 1/4 ( Fig. 48H ). Measurements and indices. BL = 2.88 mm in holotype , ThL = 1.59 mm , WL = 3.01 mm , WW = 1.17 mm , arb = 6/4, avd = 0.95, adf = 1.05, flw = 2.85, FW/HW = 0.35, ch/o = 0.27, prorb = 1.13, rcorb = 0.66, vb = 0.65, dcl = 0.56, presctl = 0.51, sctl = 1.78, sterno = 1.20, orbito = 1.65, dcp = 0.30, sctlp = 1.79, C = 1.74, 4c = 1.32, 4v = 1.97, 5x = 1.42, ac = 10.08, M = 0.55, C3F = 0.64. Type materials. Holotype ♁ ( SCAU , No. 125669, DNA #1951), CHINA : Jiuwanshan , Huanjiang , Guangxi , 25°18'48''N , 108°38'02''E , alt. 1500m , 14.ix.2015 , ex tree trunk, Y.Q. Liu . Paratypes : 1♀ ( SCAU , No. 125670), other data same as holotype. Distribution. China ( Guangxi ). Etymology. Patronym, in honour of "Liu Sanjie", a famous girl singer from the Zhuang Nationality living in Guangxi , China .