Itchy Grub's or Processionary Caterpillar's nest ( Called a Wanka nest ) common in Outback Queensland in various types of trees.
Scientific name: Ochrogaster lunifer
The Processionary Caterpillar or the Itchy Grub is very dangerous. Its hairs can cause major irritation and even death to some people.
The inner silk of these bags is very useful for dressing ulcers, burns and large sores.