Caterpillars munch on:
Adult Puss moths don’t feed at all, instead they survive on energy stored in their body when they were caterpillars.
These moths make a very tough cocoon out of chewed bark and silk, on posts or tree trunks. They stay in their cocoons, as chrysalises, all through the winter and occasionally through two winters.
There is even more about this species on the main Butterfly Conservation website
The caterpillars of Puss moths are very striking to look at, with large green bodies, two pink ‘tails’ and red collars around their head. When threatened, they can squirt acid from a gland just under their head.