eXsert
Mottled Cup Moth -
Doratifera vulnerans

Xx

Cup moths are rather dull brown little moths which emerge from a small, cup-shaped cocoon.  Although they are very common few people recognise them. 

The caterpillars, however, are another story.  They are are brightly coloured little bulldozer-like animals with conical lumps at both ends of their bodies from which dense tufts of stinging spines can be eXserted (pushed out) when danger threatens.  Most Australians have seen them at one stage, particularly as they are often found in large numbers on trees, sometimes causing severe damage.