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.^[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

^ McAlpine, J. F. (1981). Manual of Nearctic Diptera. Volume 1: Monograph: 27 / Agriculture Canada. Monograph. Ottawa: Canadian Government Publishing Centre. ISBN 978-0-660-10731-8.
^ Contributions to a manual of Palaearctic Diptera. 1: General and applied dipterology. Budapest: Science Herald. 2000. ISBN 978-963-04-8839-6.
^ "Volume Contents 127". Entomologia Experimentalis et Applicata. 127 (3). 2008-04-16. doi:10.1111/j.1570-7458.2008.volcontents_1.x. ISSN 0013-8703.

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[1] McAlpine, J. F. (1981). Manual of Nearctic Diptera. Volume 1: Monograph: 27 / Agriculture Canada. Monograph. Ottawa: Canadian Government Publishing Centre. ISBN 978-0-660-10731-8.

[2] Contributions to a manual of Palaearctic Diptera. 1: General and applied dipterology. Budapest: Science Herald. 2000. ISBN 978-963-04-8839-6.

[3] "Volume Contents 127". Entomologia Experimentalis et Applicata. 127 (3). 2008-04-16. doi:10.1111/j.1570-7458.2008.volcontents_1.x. ISSN 0013-8703.

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