The pedicel is the thin structure that connects the thorax and abdomen. The pedicel is most visible in the Hymenoptera as the pedicel is often quite long and gives Hymenoptera their distinctive thin 'waist'.

A photograph of the Spider-hunting Wasp (_Auplopus carbonarius_) with its prey.

The Spider-hunting Wasp (Auplopus carbonarius) with its prey. The pedicel is clearly visible.
Photograph by Fritz Geller-Grimm licensed under Creative Commons.

Pedicel is also the name used for the structure at the base of the antennae.

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