You searched for: “mesosoma
mesosoma, alitrunk
The middle of the three major divisions of the insect body.

In most insects, it is the strict equivalent of the thorax; but in the higher hymenoptera, it includes the propodeum (first abdominal segment of hymenopterans, fused to the thorax).

This entry is located in the following unit: Ant and Related Entomology Terms (page 11)