A son of Onomarchus, succeeding his uncle Phaÿllus as leader of the Phocians in
the Sacred War (B.C. 351). In order to secure his own safety, he concluded a treaty with
Philip, by which he was allowed to withdraw into the Peloponnesus with a body of eight
thousand mercenaries, leaving the unhappy Phocians to their fate, B.C. 346. Phalaecus now
assumed the part of a mere leader of mercenary troops, in which character we find him
engaging in various enterprises. He was slain at the siege of Cydonia in Crete.
A lyric and epigrammatic poet, from whom the hendecasyllabic metre, called
, took its name. Five of his epigrams are preserved in the Greek
Anthology. His date is uncertain, but he was probably one of the principal Alexandrian poets
(Athen. p. 440).