Grose-Smith, H. & Kirby, W.F. (1887-1892): Rhopalocera exotica, being illustrations of new, rare and unfigured species of butterflies London 1:x, . Plate Delias III *Delias singhapura Wallace, 1867 *Delias oraia Doherty 1891 *Delias nigidius Miskin, 1884 synonym for Delias ennia (Wallace, 1867)