The butterfly is tailless and has a wingspan 80–100 mm. Above, the background colour is black. A broad, irregular yellow band is found on the wings above, which is broken in the case of the forewing. Besides this the butterfly has a large number of irregular spots on the wing. The upper hindwing has a red tornal spot with blue edging around it.
As the butterfly caterpillar ages, its hunger for leaf tissue continues to grow.
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