Hey Steve - they are actually moths of the Superfamily Noctuoidea, family Arctiidae - but I'm unsure of the genus or species (sorry). Members of this group are 'aposematically' coloured - warning colours of red/orange/black etc, and are either distasteful to predators, or mimic species that are distasteful.
The pair that you've photographed are in cop, or are mating
Rel