The fore wings: Male. Length forewing/wingspan 67-78/115-122 mm. Forewing upperside and underside black with more or less developed pale streaks on both sides of the veins. H
The hind wings: Hindwing outer margin crenulate, upperside black with a violet-grey area in outer third leaving black, rounded, marginal and submarginal spots,enlarged tornus/anal area white with pink edge; underside similar, but pale area whiter and anal area black.
Sex differences: Female. Length forewing/wingspan 74-88/126-142 mm. Similar to male but pale areas more extensive and no extended tornal/anal area.
Variation and infraspecific taxa: Varies mainly in the extent of the pale areas on the hindwing; three subspecies have been distinguished.
Similar species: It is the only species in the genus with a yellow underside of the abdomen, the other species having a red underside.