Calyptratae

Definition

A subsection of Schizophora (order Diptera) comprising the 'calyptrate' flies, diagnosed by possession of a well-developed calypter—a membranous lobe at the wing base that covers or encloses the halteres. This group encompasses several superfamilies including Muscoidea (house flies, blow flies), Oestroidea (flesh flies, bot flies), and Hippoboscoidea (louse flies, tsetse flies), and represents one of the most species-rich and ecologically diverse radiations among true flies.

Etymology

From New Latin, from Ancient Greek kalyptra (κᾰλύπτρα, "hood, veil"), referring to the calypter structure that covers the halteres.

Example

The house fly (Musca domestica) and the sheep blow fly (Lucilia sericata) are familiar calyptrates; their calypters are readily visible as small, flap-like structures at the posterior wing base, contrasting with the reduced or absent calypters of acalyptrate flies such as Drosophila.

Synonyms

• calyptrate muscoids

Related Terms

• Schizophora
• Acalyptratae
• calypter
• Haltere
• Muscoidea
• Oestroidea
• Hippoboscoidea
• Brachycera
• Diptera

Usage Notes

Used as a proper noun for the taxon; 'calyptrate' serves as the corresponding adjective. The presence of a well-developed calypter is the primary diagnostic character separating Calyptratae from Acalyptratae within Schizophora, though some calyptrate groups show secondary reduction. The term is sometimes spelled 'Calyptrata' in older literature. Not to be confused with unrelated botanical or fungal names using 'calyptratae' as a specific epithet.