What is "suessula"

Suessula ( Greek: ) was an ancient city of Campania, southern Italy, situated in the interior of the peninsula, near the frontier with Samnium, between Capua and Nola, and about 7 km northeast of Acerrae, Suessula is now a vanished city and the archeological site belongs to the city of Acerra, and not to San Felice a Cancello as reported in some sources.