episternum
From ZooTerms (Dictionary of Invertebrate Zoology)
episternum (noun; plural episterna; Greek epi, upon; sternon, chest): 1. (Arthropoda: Crustacea) In Decapoda, the posterolateral projection of various sterna.
2. (Arthropoda: Insecta) The area of a thoracic pleuron anterior to the pleural suture.
