Which insects are biggest in the world?

There are many types of insects in the world and the biggest recognized insects are walking sticks. There are 3000 types of walking sticks and their body is like stick structure. They stay on the leaves of a tree and they mix with the color of the leaves to the extent that they can’t be identified. They are 13 to 20 inches long in nature. They stay in the areas like Malaysia and Singapore in Asian region, Europe and in North America. The strange thing about walking sticks is that their legs grow again even if they are broken. Walking sticks can also act like dead when birds come in search of food