It consists of those flies which possess a 腋瓣(英语:calypter) that covers the haltere(英语:haltere)s, among which are some of the most familiar of all flies, such as the 家蠅。
^Kutty, Sujatha Narayanan; Pape, Thomas; Wiegmann, Brian M.; Meier, Rudolf. Molecular phylogeny of the Calyptratae (Diptera: Cyclorrhapha) with an emphasis on the superfamily Oestroidea and the position of Mystacinobiidae and Mc Alpine’s fly. Systematic Entomology. 2010, 35 (4): 614–635. doi:10.1111/j.1365-3113.2010.00536.x.