Out for a walk at Manly Dam Park north of Sydney this morning, I saw this pretty little butterfly. It’s a Black Jezebel (Delias nigrina). The undersides of its wings are quite colourful: black with yellow and red markings and some white snowy patches. The body is a fluffy yellow.

When the butterfly is flitting around, it looks entirely white, because you see only the top of its wings. In this video, you see glimpses of the white uppersides of the wings: