Thanks @ibaird I'm trying to include underside shots whenever possible as it adds to the overall information about the moths and hopefully sometimes helps with their identification.
Looking at distribution on ALA and also the distribution of E. fastigata in 'Field guide to Eucalypts, Vol 1. Brooker & Kleinig, 1999, it seems there is an association between these two species within the structure of brown barrel forests......a nicely surprising and significant find!