part of develops from labial segment larval labial neuromere adult labial segment adult labial neuromere VFB:FBbt_00007160 fly_anatomy.ontology Neuromere of the adult gnathal ganglion that develops from the larval labial neuromere. It is located posterior to the mandibular and maxillary neuromeres, but segmental architecture is less well defined in the adult. FBbt:00007160 labial segment of adult subesophageal ganglion adult neuromere adult gnathal neuromere