Calypter
"Calypter" in a Sentence (3 examples)
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.