As far as camouflage go, leaf insects must be one of the true masters. They belong to the genus Phyllidae and are native to South Asia and Australia. Leaf insects are so called because of the colouring and patterns on their wings that resemble leaves (with veins, and even serrations or nodules on some species), making them invisible to predators.
This particular leaf insect was photographed at Chester Zoo, one of five species that the zoo manages.
Juridicious 