(Θεαρίδας).
1. A citizen of Megalopolis, who was taken prisoner by Cleomenes, when he surprised that city in B. C. 224. He united with Lysandridas, another of the captives, in persuading the conqueror to offer favourable terms to their fellow-citizens who had escaped to Messene, to which Cleomenes had the magnanimity to consent : but the Megalopolitans refused his overtures, and repulsed Lysandridas and Thearidas with indignation as traitors to their country. (Plut. Cleom. 24.)