Cyclorrhapha is an unranked taxon within the

infraorder Order () is one of the eight major hierarchical taxonomic ranks in Linnaean taxonomy. It is classified between Family_(biology), family and Class_(biology), class. In biological classification, the order is a taxonomic rank used in the classific ...

Muscomorpha The Brachyceran infraorder Muscomorpha is a large and diverse group of flies, containing the bulk of the Brachycera and most of the known fly, flies. It includes a number of the most familiar flies, such as the housefly, the Drosophila, fruit fly ...

. They are called "Cyclorrhapha" ('circular-seamed flies') with reference to the circular aperture through which the adult escapes the puparium. This is a circumscriptional name that has significant historical familiarity, but in the present classification, this name is synonymous with the more recent "

". 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. Cyclorrhapha exhibits significant morphological and molecular diversity, including notable changes in anterior egg development, as exemplified by the role of the exuperantia (exu) gene in Anastrepha fraterculus, a species of great agricultural importance. Additionally, phylogenetic analyses suggest that the larval structures of Cyclorrhapha have evolved in response to varying food consistencies, reflecting their ecological adaptations.Rotheray, G. E., & Gilbert, F. (2008). Phylogenetic relationships and the larval head of the lower Cyclorrhapha (Diptera). Zoological Journal of the Linnean Society, 153(2), 287–323. https://doi.org/10.1111/j.1096-3642.2008.00395.x

References

Muscomorpha Protostome unranked clades {{Muscomorpha-stub