Euchromia creusa is a moth of the Arctiidae family. It is found in Australia (northern Queensland), Ceram, Key Island, New Guinea, the New Hebrides, the Solomon Islands, the Pelew Islands, Fiji and Vanuatu. The wingspan is about 50 mm. Adults are wasp mimics. They have black wings, with transparent spots and a blue comma-shaped mark near the centre of the forewing. The hindwings are about half the span of the forewings. There are transverse black and red bands on the body.