Four winged eucalyptus gall (Apiomorpha munita)
Spectacular shaped galls created by female scale insects (Eriococcidae) on Eucalyptus. This one was about 50mm from one wingtip to another.
Apiomorpha are eucalypt specialists. This structure is created by a female who ends up spending the rest of her life inside. Male structures are usually found nearby, much more numerous, and much smaller and simpler structures. A small group of males can be seen lower left.
This one is subspecies Apiomorpha munita tereticornuta.
Apiomorpha munita is an Australian scale insect which forms woody galls on various eucalyptus species.
Some are quite spectacular shapes and A munita is known for galls with horns or blades..