part of mesothoracic pleuron basalare Fig 12,13 Abbr: Ba in ISBN:0-937548-00-6. TGMA:0000318 TGMA:0000318 The episternal epipleurite giving insertion to the anterior pleural wing muscles. In the mesothorax of mosquitoes, the lobe borne at the apex of the posterior mesanepisternum anterior to the pleural wing process; in the metathorax of mosquitoes, the small lobe at the apex of the metepisternum before the pleural wing process. default_namespace unguoid unguoid process