We found an interesting caterpillar on one of our gum trees on Friday last week. It was very well camouflaged. We took some photographs of it:
It was on a young Eucalyptus leucoxylon var rosea and was about 10cm long when moving up the trunk.
We found this site
http://www.usyd.edu.au/macleay/larvae/larvae.html about identifying Australian caterpillars but we were [...]