After looking for this exotic and beautiful butterfly all Summer, I finally found it, thanks to friend Allen Hartley who tipped me off about the location. Many thanks Allen. The food plant for the Two-tailed Pasha is the Strawberry Tree, arbutus unedo and here they will congregate and are not troubled by curious lepidopterists like me, hence it is possible to get good photographs.
What a stunner! I was delighted to finally capture this amazing insect.