noun
- Plural of metathorax; the posterior or third segment of an insect's thorax, bearing the third pair of legs and the hind wings.
Usage: entomology; technical
Examples
- The metathoraxes of beetles are often heavily sclerotized for structural support.
- Entomologists examine the metathoraxes to classify different insect species.
- The wings attached to the metathoraxes provide insects with enhanced flight control.
- Under the microscope, the metathoraxes showed distinctive muscle attachment points.