Acalyptratae

The Acalyptratae or Acalyptrata are a subsection of the Schizophora, which are a section of the order Diptera, the "true flies". In various contexts the Acalyptratae also are referred to informally as the acalyptrate muscoids, or acalyptrates, as opposed to the Calyptratae. All forms of the name refer to the lack of calypters in the members of this subsection of flies. An alternative name, Acalypterae is current, though in minority usage. It was first used by Pierre-Justin-Marie Macquart in 1835 for a section of his tribe Muscides; he used it to refer to all acalyptrates plus scathophagids and

The enigmatic fly family Ctenostylidae is a small group of very rare flies formerly included in the family Pyrgotidae (as the subfamily "Lochmostyliinae"); the principal reason for their inclusion in the Pyrgotidae was the absence of ocelli, a feature originally thought to be a unique defining feature ("autapomorphy") of the Pyrgotidae. Subsequent careful analysis has revealed that this anatomical feature shared with Pyrgotidae may not be indicative of a close relationship, and even the inclusion of Ctenostylidae within the superfamily Tephritoidea was cast into doubt, leaving this as the only

Dictyacium is a genus of flies in the family Sciomyzidae. There are at least two described species in Dictyacium.