In 282 (when consul) he defeated the Bruttians and Lucanians, who had besieged Thurii (Livy, Epit.
Fabricius afterwards gained a series of victories over the Samnites, the Lucanians and the Bruttians, and on his return to Rome received the honour of a triumph.
Finally he was sent with a mercenary army to Italy to protect the Tarentines against the attacks of Lucanians or Messapians: he fell together with the greater part of his force at Mandonion 1 on the same day as that on which the battle of Chaeronea was fought.
In one campaign, in which he was joined by the Lucanians, he devastated the territories of Thurii, Croton and Locri.
After long struggles the city fell into the hands of the Lucanians (who nevertheless did not expel the Greek colonists) and in 273 B.C. it became a Latin colony under the Roman rule, the name being changed to the Latin form Paestum.