Sparshalli moth larva (Trichiocercus sparshalli)
These caterpillars are up to about 25mm long.
They can appear in several colour combinations which can be confusing.
Sometimes they will follow each other processionary style.
The species was originally described in England from a single moth in 1821 but has never been seen outside SE Australia since. Must have been a stowaway pupa or eggs on a returning convict ship.
Also called Long tailed bombyx.

"Trichiocercus sparshalli", the long-tailed bombyx or Sparshall's moth, is a moth of the family Notodontidae. It was first described by John Curtis in 1830 and it is found in Australia. The wingspan is about 40 mm.
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