Appearance
Adults are approximately 60–65 millimetres long. The males have white forewings edged in black, and cadmium-yellow hindwings, usually with black spots on the margins. Females are similar, but have an additional group of black spots on the forewing, which often merge to form a dark ring.Distribution
''C. scylla'' has a wide distribution in South East Asia and Australasia. Its range stretches from Myanmar, Philippines, Thailand, and Vietnam, along the Malay Peninsula, across Java and Sumatra, and over northern Australia. It was recently discovered in Sri Lanka.References:
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