ⓘ Calypter. A calypter is either of two posterior lobes of the posterior margin of the forewing of flies between the extreme posterior wing base and the alula, wh ..

                                     

ⓘ Calypter

A calypter is either of two posterior lobes of the posterior margin of the forewing of flies between the extreme posterior wing base and the alula, which covers the halteres.

The lower calypter is the proximal calypter synonyms: squama of some authors, tegula) and the upper calypter is the distal calypter synonym: squamula.

Species of the subsection Acalyptratae are noted for lacking calypters.