Approximately 22mm long with a wingspan of about 50mm.
Resting on a wall in a local nature reserve adjoining a large national park.
In Melbourne, the pupa is formed in September and adults emerge at the beginning of May, so this one is a little early.
Keyed out & fits FoV description. Pith with airholes rules out most other contenders. Culms blue-green, soft, 2.5mm diameter, ~50-70 striations not strongly raised. Primary bract continuous with culm. 60cm tall in temporary wet area in dry forest.