The most posterior element of the sternum; the ensiform process; xiphisternum.

The ventral plate of the third or last segment of the thorax of insects.

Sternum of the metathorax, which is mostly concealed under the bases of the metacoxae and metasoma. [photo][photo

bottom or ventral portion of metathorax

The sternum of the metathorax, usually invaginated and not visible but sometimes used as a general term for the ventral surface of the metathorax.