gaster noun - the remaining abdominal segments after the waist, or petiole; the enlarged part of the abdomen that is usually referred to as the abdomen, proper (modified from University of Florida). Usually used in reference to hymenoptera.

Diagrams and photos illustrating the gaster:

Contributed by Chuck Entz on 31 May, 2007 - 2:01am
Additional contributions by cotinis
Last updated 2 October, 2007 - 10:05am

Disclaimer: Dedicated naturalists volunteer their time and resources here to provide this service. We strive to provide accurate information, but we are mostly just amateurs attempting to make sense of a diverse natural world. If you need expert professional advice, contact your local extension office.

Contributors own the copyright to and are solely responsible for contributed content.
Click the contributor's name for licensing and usage information.
Everything else copyright © 2003-2024 Iowa State University, unless otherwise noted.

Bugguide is hosted by:

Printer Friendly Version