2. Of Salapia. He and Blattius were the leading men at Salapia, and he favoured Hannibal, while Blattius advocated the interests of Rome, at least as much as he could do in secret. But as Blattius could effect nothing without Dasius, he at length endeavoured to persuade him to espouse the part of the Romans. But Dasius, unwilling to support his rival, informed Hannibal of the schemes of Blattius. Both were then summoned by Hannibal. Blattius, when he appeared before the Carthaginian general, accused Dasius of treachery; and Hannibal, who had not much confidence in either of them, dismissed them both. However, Blattius carried out his design, and Salapia with its Punic garrison was surrendered to the Romans. Dasius was killed in the massacre which ensued. This happened in B. C. 210. (Liv. 26.38; Appian, Annib. 45, &c.)
[L.S]A Dictionary of Greek and Roman biography and mythology
Smith, William
A Dictionary of Greek and Roman biography and mythology. William Smith, LLD, ed. 1890