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Cyclorrapha (subclass Pterygota, order Diptera) Suborder of true flies which is normally divided into two sections, Aschiza and Schizophora, comprising insects whose antennae have less than six segments and have, or lack, a ptilinal suture (see PTILINUM). The antennae usually have three segments, with a terminal arista. The wing venation includes a closed discal cell with the cubitus closed or contracted. The larvae have a vestigial head, and pupate within a puparium. The suborder includes 57 families.

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