The term "True fly" is commonly used to refer to the insects belonging to the order Diptera, which are known for having only two wings. However, there are many other synonyms for this group of insects, including Dipterans, two-winged insects, or simply flies. Some other types of flies within this category include mosquitoes, midges, and fruit flies. While these insects are often viewed as nuisances, they play important roles in ecosystems as pollinators, decomposers, and as a food source for other animals. Whether referred to as True flies, Dipterans, or simply flies, these insects are an essential part of our natural world.