Habitus. A, B S. formosana (Matsumura, 1913) male from China, Hainan, Ledong, Mt. Jianfengling, 1050m, dorsal and ventral views C, D, E (labels) S. lativitrea (Walker, 1868) (to compare with S. formosana) holotype (copyright Natural History Museum, London), dorsal and ventral views F, G S. nigra (Shiraki, 1908) male from China, Hubei, Mt. Dabieshan, Taohuachong, dorsal and ventral views H, I S. shanensis (Princis, 1950) male from China, Yunnan, Lincang, Nansan, dorsal and ventral views J, K S. undulata (Bey-Bienko, 1958) male from China, Yunnan, Xishuangbanna, Wangtianshu, dorsal and ventral view. Scale bars: 5 mm.