Do it yourself Insect hotel. Hammer the box itself together! Is home to various species of insects. Insects need a home, and you can help them out! You can fully craft and glue your own insect hotel. This offers insects the opportunity to hibernate and nest. Insects are useful guests in the garden. Earwigs are natural predators of aphids. Wild bees fertilize flowers. The natural habitat of many insect species is threatened by changes in their environment; an insect hotel is a way to protect them.