Are you sure it's Elhamma australasiae? It looks so different to the other ones. I was hoping it could be Oncopera rufobrunnea or Oxycanus rufescens but they don't really match either.
Reasonably sure, but I always stand to becorrected! A highly variable species colour-wise, whose distinctive shape, I think, is one of the best guides to identification. First moths appear this time of year from January to March and they can be quite numerous. Its the females which tend to be plain often reddish coloured, but I never fail to be suprised at the different markings and colours I see.