Cyana grandis is a moth of the family Erebidae first described by Paul Mabille in 1879. It is found on Madagascar.
This species is white, with three transversal red lines on the forewings. The wingspan is .Hampson, 1900, Catalogue of the Lepidoptera Phalaenae in the British Museum 2: 305, pl. 26, fig 18
References Mabille (1879). "Lepidoptera Madagascariensia; species novae". Bulletin de la Société Philomathique. (7) 3: 132–144.
External links Illustration on Hampson Plate. Catalogue of the Lepidoptera Phalaenae in the British Museum 2: plate 26, fig.18