Entire thorax with all its appendages is called as

Answer: Option B

The entire thorax with all its appendages is called as Stethidium.
The thorax is the midsection (tagma) of the hexapod body (insects and entognathans). It holds the head, legs, wings and abdomen. It is also called mesosoma or cephalothorax in other arthropods. The body is divided into a thorax of three segments and a ten-segmented abdomen.