Diptera belongs to the Insecta class because its wings have a pair of thin wings that have two functions to fly, while the other pair only functions as a stabilizing auxiliary or as an air velocity detector (* halterer *).
Although many insects generally fly, diptera deemed to be a true fly because of this character. Diptera has large facet eyes when compared to its body. Antenna can be short (* Brachycera ) or long ( Nematocera *).