The genus Scaptodrosophila Duda (Diptera, Drosophilidae), part III: the riverata species group from China, with morphological and molecular evidence for five new species Author Lin, Yong Department of Entomology, South China Agricultural University, Tianhe, Guangzhou, 510642, China Author Chen, Hong-Wei Department of Entomology, South China Agricultural University, Tianhe, Guangzhou, 510642, China hongweic@scau.edu.cn text ZooKeys 2020 2020-06-01 937 139 162 http://dx.doi.org/10.3897/zookeys.937.49794 journal article http://dx.doi.org/10.3897/zookeys.937.49794 1313-2970-937-139 3772774D69064106839696CF4581D79A 62955966DCED51C6A867C93553F66A39 3886047 Scaptodrosophila platyrhina sp. nov. Figs 4B, D, F , 10 Material examined. Holotype . China : ♂ (SCAU, No. 126838), Menglun , Mengla , Yunnan , 21°41'N , 101°25'E , alt. 680 m , 17.iv. 2007 , HW Chen . Paratypes . China : 4♂ , 7♀ (SCAU, Nos 126839-47), Menglun , Mengla , Yunnan , 21°41'N , 101°25'E , alt. 680 m , 17.iv.2007 , HW Chen ; 1♂ (SCAU, No. 127161), Niuluohe , Jiangcheng , Yunnan , alt. 800 m , 22°30'N , 101°34'E , 21.iv.2010 , HW Chen ; 1♂ (SCAU, No. 110923), Guanlei , Mengla , Yunnan , 21°38'N , 101°10'E , alt. 620 m , 21.iv.2016 , YQ Liu ; 2♂ , 2♀ (SCAU, Nos 110924, 26-28), Menglun , Mengla , Yunnan , 24°41'N , 101°25'E , alt. 554 m , 12.iv.2010 , HW Chen . Diagnosis. Facial carina short; paramere finger-like in lateral view, with ca 4 sensillae basally (Fig. 10C, D ); aedeagus bifid apically (Fig. 10C, D ); gonopods undeveloped (Fig. 10C, D ). Description. Head (Fig. 4B ): Frons yellowish brown. Pedicel yellowish brown. First flagellomere yellowish. Facial carina hazel, short, 1/3 length as face. Thorax (Fig. 4D, F ): Mesonotum and scutellum yellowish. Acrostichal setulae in ca 8 regular rows. Halter hazel. Wings yellowish. Abdomen (Fig. 4D, F ): Tergites yellowish. Male terminalia : Epandrium with ca 11 setae near posterior margin and ventral corner per side (Fig. 10A, B ). Surstylus with ca 10 long, peg-like prensisetae on caudal margin, and ca 3 setae on outer surface (Fig. 10A, B ). Hypandrium glabrous (Fig. 10C, D ). Female terminalia (Fig. 10E ): Oviscapt with 3 long subapical trichoid ovisensilla, ca 21 peg-like ovisensilla on each side on ventral margins and 5 trichoid ovisensilla on dorsal. Measurements [holotype ♂ (range in 5♂, 5♀), in mm]: BL = 2.27 (2.00-2.33, 1.93-2.13), THL = 1.13 (0.80-1.07, 1.00-1.07), WL = 2.47 (2.20-2.40, 2.20-2.40), WW = 0.93 (0.80-0.93, 0.80-0.93). Indices : arb = 2/1 (2/1), avd = 0.60 (0.60-0.80), adf = 2.50 (2.00-2.50), flw = 2.00 (2.00), FW/HW = 0.43 (0.41-0.45), ch/o = 0.08 (0.08-0.09), prorb = 0.83 (0.40-1.00), rcorb = 0.50 (0.33-0.60), vb = 0.40 (0.40-0.50), dcl =0.71 (0.50-0.73), presctl = 0.43 (0.40-0.50), sctl = 1.00 (0.85-1.27), sterno = 0.89 (0.70-0.89), orbito = 0.67 (0.67), dcp = 0.36 (0.31-0.36), sctlp = 1.00 (0.71-1.00), C = 2.86 (2.64-2.79), 4c = 1.00 (0.93-1.08), 4v = 2.36 (2.00-2.46), 5x = 1.67 (1.50-1.80), ac = 2.80 (2.80-3.00), M = 0.71 (0.64-0.71), C3F = 0.36 (0.29-0.36). Etymology. A combination of the Latin words: " platys " + " rhinos ", referring to the flat carina. Distribution. China (Yunnan).