G.scutellatus larvae (Gonipterus scutellatus)

Nobody seems to know why but these larvae have a habit of building extensive coils of dried frass as they eat and grow. Maybe it's a distraction to potential predators.
Larvae are about 12mm long and the frass coils are sometimes 2 or 3 times larger than these.
Found in a local state reserve on eucalyptus leaves.