Cyclorrhapha is an unranked taxon within the infraorderMuscomorpha. They are called "Cyclorrhapha" ('circular-seamed flies')[1] with reference to the circular aperture through which the adult escapes the puparium.[2] This is a circumscriptional name that has significant historical familiarity, but in the present classification, this name is synonymous with the more recent "Muscomorpha".[3]
Cyclorrhapha underwent major adaptive radiation that led to the creation of over 72 000 species. These species share multiple attributes such as the 360-degree rotation of the male terminalia.[4]
^Borror, Donald J.; Triplehorn, Charles A.; Johnson, Norman F. (2009). An Introduction to the Study of Insects, Sixth Edition. Saunders College Publishing, Harcourt Brace Jovanovich College Publishers, Philadelphia. pp. 501, 548. ISBN978-0-03-025397-3.
^Borror, Donald J.; Triplehorn, Charles A.; Johnson, Norman F. (2009). An Introduction to the Study of Insects, Sixth Edition. Saunders College Publishing, Harcourt Brace Jovanovich College Publishers, Philadelphia. p. 548. ISBN978-0-03-025397-3.