Hymenoptera are characteristed by a thin 'waist' between the thorax and the abdomen. Following the thin waist the abdomen gets thicker and this region is called the Gaster.
The Spider-hunting Wasp (Auplopus carbonarius) with its prey. The thin waist and gaster, distinctive of Hymenoptera, are clearly visible.
Photograph by Fritz Geller-Grimm licensed under Creative Commons.
Related groups of terms
Related pages on this web site
Back to Glossary
If you have found this glossary useful please consider supporting the Amateur Entomologists' Society by becoming a member or making a donation.