FB2025_05 , released December 11, 2025
FB2025_05 , released December 11, 2025
CV Term Report
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General Information
Term episternum ID (Ontology) FBbt:00004554 (Fly Anatomy)
Definition The anterior part of the pleuron (lateral plate of the adult thorax), above the coxa.[ FlyBase:FBrf0166419 ]
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adult external thorax
 |__pleurum___________
region of integument  |
 |__sclerite__________|
 |__pleurum___________|
                      episternum  133 rec.
                       |__mesothoracic episternum 130 rec.
                       |   |__anepisternum(+) 19 rec.
                       |   |__katepisternum(+) 2 rec.
                       |   |__mesothoracic preepisternum(+) 116 rec.
                       |__metathoracic episternum 4 rec.
                       |   |__metathoracic preepisternum 2 rec.
                       |__preepisternum 116 rec.
                       |   |__mesothoracic preepisternum(+) 116 rec.
                       |   |__metathoracic preepisternum 2 rec.
                       |   |__prothoracic preepisternum 1 rec.
                       |__prothoracic episternum 8 rec.
                           |__prothoracic preepisternum 1 rec.
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Is a sclerite
Part of pleurum
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https://www.ento.csiro.au/biology/drosophila/melanogaster.html?episternum