In 405 BC, sixteen years after his consulship, Quinctius was elected as one of the Consular tribunes as the most senior member of the consular college. His colleagues was Quintus Quinctius Cincinnatus, cousin once removed to Quinctius, Gaius Julius Iulus, Aulus Manlius Vulso Capitolinus, Lucius Furius Medullinus and Manius Aemilius Mamercinus. The consulars continued the war started with Veii in 406, succeeding with surrounding the city and beginning the Siege of Veii which would last for ten years.