Calypter
A calypter is either of two posterior lobes of the posterior margin of the
halteres.[1]
The lower calypter is the proximal calypter (synonyms: squama (of some authors), tegula) and the upper calypter is the distal calypter (synonym: squamula).[2]
Species of the subsection Acalyptratae are noted for lacking calypters.[3]
References
- ISBN 978-0-660-10731-8.
- ISBN 978-963-04-8839-6.
- ISSN 0013-8703.