I came upon this butterfly in the yard the other day – a common crow butterfly, also known as an oleander butterfly.
These are found along the east coast of Queensland and New South Wales and have a wingspan of about 9cm.
An interesting fact I read about the common crow butterfly is that they produce toxins that have a strong scent to deter being eaten by predators, and the toxins are so strong that it makes them inedible, so if a bird did eat one, the bird would be sick.
These butterflies are slow flyers, seeming to take their time fluttering about casually and spend a lot of time on the flowers. As you can see, this particular one stayed around long enough to get some decent photos. 🙂