pleural suture
From ZooTerms (Dictionary of Invertebrate Zoology)
pleural suture: 1. (Arthropoda: Crustacea) The line of separation of carapace in molting.
2. (Arthropoda: Insecta) A suture on a thoracic pleuron extending from the base of the wing to the base of the coxa, separating the episternum and epimeron; referred to as pro-, meso-, or metapleural ridge.
