part of develops from mandibular segment larval mandibular neuromere adult mandibular segment adult mandibular neuromere VFB:FBbt_00007159 FBbt:00007159 fly_anatomy.ontology mandibular segment of adult subesophageal ganglion Neuromere of the adult gnathal ganglion that develops from the larval mandibular neuromere. It is located anterior to the maxillary and labial neuromeres, but segmental architecture is less well defined in the adult. adult neuromere adult gnathal neuromere