Light Ermine Moth (Ardices canescens)

Not really dead at all :)
These clean looking moths make it simple to get underneath shots by remaining completely still for up to a minute if upturned.
About 40mm long, mostly white with many dark spots and a striking flash of vermilion around the thorax.
Attracted to powerful night lights above a car at a national park.
One of the few species I have found whose larvae can feed on Tradescantia which has become a noxious weed around here.
Useful insect.
Formerly included in Spilosoma, but later generic status of Ardices was proved. The larvae are polyphagous