(Κονωνεύς), a Tarentine, is mentioned by Appian (Annib. 32) as the person who betrayed Tarentum to the Romans in B. C. 213. (Comp. Frontin. Strateg. 3.3.6, where Oudendorp has restored this name from Appian.) Polybius (8.19, &c.) and Livy (25.8, &c.) say, that Philemenus and Nicon were the leaders of the conspiracy; but Schweighäuser remarks (ad App. l.c.), that as Percon was the cognomen of Nicon (see Liv. 26.39), so there is no reason why we should not infer that Cononeus was the cognomen of Philemenus. [PHILEMENUS.]
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