The Acalyptrates are a subsection of the Brachycera (a suborder of the Diptera or true flies). The name of this group reflects the fact that the flies do not possess calypters - a membranous flap that is located at the base of the wing.
The Acalyptrates are a very diverse group and include many, many species.
Tephritis divisa, a picture winged Acalyptrate fly new to Britain and discovered by AES member Peter Hodge during an AES field trip to Bognor Regis in August 2005.
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