Calypter

The acrosticals are irregularly paired, with numerous accessory setulae between the rows; the lower calypters protrude distinctly beyond the margin of the upper;[…].

The wings are hyaline and slightly smoky yellowish, while the calypters and wing fringes are pale yellowish (Steyskal, 1980).

Traditionally this taxon^([Schizophora]) is subdivided into Calyptratae and Acalyptratae, based respectively on the strong or reduced development of the lower calypter.