corpora ventralia
From ZooTerms (Dictionary of Invertebrate Zoology)
corpora ventralia (plural; singular corporus ventralium): (Arthropoda: Insecta) Ventral or lateral bodies that lie ventrolaterally in the protocerebrum just above the antennal glomeruli of the deutocerebrum, and connected to a transverse commissure tract; they are association centers connected to many other parts of the brain.
