(Earlier post on Early stage of Hasora badra badra (Common Awl))
Recently, I came across a caterpillars of this butterfly, at forested area instead of the usual back-mangrove, the hostplant seems to be some species of Derris.
The caterpillar are bred to adulthood and confirmed to be Hasora badra badra (Common Awl).
4th instar larva
5th instar larva
Male genitalia of Hasora badra