https://www.youtube.com/watch?v=A0bprR7yin0
Insects are considered to be the most successful animals on earth in terms of number of individuals, number of species, and range of habitats. There are more known species of insects (nearly 1 million) than all other forms of life, and they occupy nearly every terrestrial habitat.
Most people think only of pests when they think of insects. But, in fact most insects found in yards, gardens, or crops do not feed on or harm plants. Many of these are just “passing through” or have very innocuous habits. Others feed on and destroy pest species. In many cases, the activities of these beneficial species can prevent or greatly limit pest problems. It is important to recognize these beneficial insects, so they can be appreciated and conserved.