label: insect adult cerebral ganglion
label_lc: insect adult cerebral ganglion
description: "The pre-oral neuropils of the adult brain located above, around and partially below the esophagus, including the optic lobes. It excludes the gnathal ganglion. Developmentally, it comprises three fused neuromeres: protocerebrum, deutocerebrum, and tritocerebrum."