Great work! You have confirmed a long standing former suggestion of mine elsewhere based on a somewhat inconclusive photo on LBH. See here:- https://lepidoptera.butterflyhouse.com.au/geom/ocultaria.html
The originals of those/Steve's pictures in Moths of Vic Part 3 CD was what I was going from. Handled and disturbed caterpillars frequently 'spit' out green liquid (chewed plant material).