Gnats are small, flying insects that belong to the family of Diptera, which includes flies and mosquitoes. They are typically less than 5 millimeters long and are often found in damp or humid environments. Gnats are known for their swarming behavior, especially during warm months, and can be a nuisance to people and animals.
There are various types of gnats, including fungus gnats, which are attracted to moist soil and decaying organic matter, and biting midges, which can cause itchy bites. While they are generally harmless, some species can transmit diseases or cause allergic reactions in sensitive individuals.