A trip down Camp Road in the Wombat Forest on Friday was rewarded with a sighting of a Sword-grass Brown Tisiphone aboeona antoni.
One interesting aspect of this butterfly is that the larvae feed on Gahnia sieberana and Gahnia radula. They rest during the day and come out at night.
According to A Field Guide to Australian Butterflies by Robert Fisher, the pupa attach to the host plant by a cremaster. This is a modification of the last abdominal segment of the pupa that has hooked hairs.