Leaf bug (Phyllium giganteum)
The constant wobbling as they move is a part of their disguise, making it seem as though the “leaf” is only moving because of a light breeze.
If you blow on one it will also shake around in the hopes of matching any actual surrounding leaves
remember this show where this one dude had to guess what is he smelling and he put his nose into someones asshole and went “smells like ass” and the commentator went “correct” and this dude did the funniest expression ever. wheres that gif