Gaster (insect anatomy)
The gaster is the bulbous posterior portion of the metasoma found in Apocrita Hymenoptera (bees, wasps and ants). This begins with abdominal segment III on most ants, but some make a postpetiole out of segment III, in which case the gaster begins with abdominal segment IV.
|This ant-related article is a stub. You can help Wikipedia by expanding it.|
|This insect anatomy-related article is a stub. You can help Wikipedia by expanding it.|