The term 'flying insect' encompasses a wide variety of creatures, including moths, bees, and gnats. Moths are four-letter insects that are typically nocturnal and have a fuzzy appearance. Bees are three-letter insects that are well known for their role in pollination and the production of honey. Gnats are four-letter insects that are often considered pests due to their tendency to swarm and bite. All three of these flying insects play an important role in the environment.