Hasdrubal led the Spanish and Celtic cavalry on the left (south near the Aufidus river) of the Carthaginian army.
Mago completed his mission, and when he sailed to Carthage to report to the Carthaginian senate and ask for reinforcements, Hanno was left in command of his army.
Hanno received the reinforcements landed by Bomilcar, the leading Carthaginian admiral, consisting of 4,000 cavalry and 40 elephants, near Locri and joined Hannibal near Nola later that year.
Hanno led a mostly Bruttian army that captured Crotona in 215 BC, and with the defection of Locri, all of Bruttium except Rhegium was allied with Carthage.
[3] He had marched to join Hannibal in Campania in early 214 BC, but, near the River Calor, at Beneventum, his army was intercepted by the praetor Tiberius Gracchus and his legions of mostly freed slaves.
The tardiness of the Capuans, who were slow to send sufficient wagons, gave time for Quintus Fulvius Flaccus to get wind of the enterprise from loyal Italians, and he attacked the Carthaginian camp when most of Hanno's men were out foraging.
Although the Carthaginians succeeded in repulsing the first assault, the Romans were galvanized by the actions of an Italian allied cohort and eventually captured all the supplies and wagons along with the camp.