part of develops from mesothoracic segment dorsal mesothoracic disc primordium larval mesothoracic segment dorsal thoracic disc wing disc Dorsal imaginal disc of the mesothorax. Precursor of dorsal mesothoracic structures of the adult including the postnotum, scutum, scutellum, wing, wing hinge and part of the notal pleura. dorsal mesothoracic disc fly_anatomy.ontology FBbt:00001778 UBERON:6001778