Peppermint Patcher

I have been noticing that neat little chew marks are appearing on the edges of the ginger leaves near the front door. As I walked past this week I noticed these little guys sitting on the leaf.



I am wondering whether they are responsible for the damage. I thought it brave of them to show themselves as our garden is full of birds. These look like they would make a tasty morsel. Unfortunatley they grow into these monsters. Enormous brown, prickly grasshoppers. I stopped to photograph when they were little, but when they're grown up I'll just be running away!