What are these insects doing there?

Did you already hear the affirmation that 'The world is green'? Imagine then that the world is a huge banquet for herbivorious insects, that is, those ones that feed on plants, such as leaves, flowers, and roots parts, mainly at the larval stadium. Some of them feed outside plants parts, while other feed inside plants parts. Plants parts are also nursery for some insects because they deposit their eggs there, using them as substract. So, understand insect-plant interactions is essential to see and understand this wonderful world, in all its shades of green.