Petiole (insect anatomy)
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In entomology, petiole is the narrow waist of some hymenopteran insects, especially ants, bees, and wasps in the suborder Apocrita. The petiole can consist of either one or two segments, a characteris
The sand wasp Ammophila sabulosa has an exceptionally long petiole.
This Acanthomyrmex ant has a petiole and postpetiole
A mymarommatid wasp with a visibly 2-segmented petiole
Ampulicidae
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Ampulicidae, or cockroach wasps, are a small, primarily tropical family of sphecoid wasps, all of which use various cockroaches as prey for their larvae. They are the most primitive family of sphecoid
