A giant new species of stick insect with a supersized wingspan has been discovered in a remote rainforest in Australia.

The stick insect, which is around 40cm (15.75 inches) long, was discovered in high-altitude trees in the mountainous Wet Tropics region of North Queensland.

The female specimen weighed 44g, just less than a golf ball, but significantly heftier than Australia's heaviest insect, the giant wood moth, which gets up to 30g.

Footage shows the incredible wingspan of the stick insect, which is a similar length to a small bird.

The new species, named Acrophylla alta, is roughly the same size as a barn owl, a wood pigeon and a coot.