Location - Indhikada Mookalana forest reserve
Expanse - 2.9 - 5 cm
Reference - The Lepidoptera of Ceylon - F. Moore, F.Z.S. Vol 3. (Probably the 'margaronia glauculalis' of plate 181 and page 325)
External Links - http://www.inaturalist.org/listed_taxa/5181647