The Ulysses Butterfly is a large blue swallowtail butterfly, found throughout northeastern Australia and surrounding islands. She measures an average of 15cm in width, and can be found in rainforets and suburban gardens. Her vivid blue colouration comes through the microscopic structure of the scales on her wings, which interferes with light and causes the irridescence. The underside of her wings are a rather more subdued brown, allowing her to camouflage when she sits at rest. As she flies, the blue flashes and attracts attention, hopefully from males - not predators!
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