Monarch Butterflies

Has anyone seen monarch butterflies in Pukawa recently?.
I haven't seen any so I was surprised to see 8 caterpillars on a swan plant.
Unfortunateky the beastly soldier beetle also arrived and has killed the caterpillars one by one. I have squashed three beetles but usually by the time I see them the damage is done.  The butterflies may still arrive but it is getting very late even for this area.