idas

In Greek mythology, Idas (Greek: Ίδας) was a son of Aphareus and Arene and brother of Lynceus. He and Lynceus loved Hilaeira and Phoebe and fought with their rival suitors, Castor and Polydeuces, killing the mortal brother Castor. He was also one of the Argonauts and a participant in the hunt for the Calydonian Boar. He kidnapped Marpessa.  Apollo also desired her and Zeus made the girl choose.
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n. going; departure; attack; track, trail

adj. gone, left; taken; looped

n. going, departing

[Greek heroic] The son of Aphareus. He abducted Marpessa, an Aetolian princess and granddaughter of Ares. When Apollo wanted the girl also, Zeus had her choose between the two men. She chose Idas. After he participated in the hunt for the Calydonian boar and the voyage of the Argonauts, he died in a fight with the Dioscuri.

Idas (Greek) In Greek mythology, brother of Lynceus, sons of Aphareus and Arene, and cousins of the Dioscuri, Castor and Pollox. Idas won the nymph Marpessa from Apollo, and was considered the strongest of living men. Because of a quarrel over the division of cattle or over the rape of their betrothed by the Dioscuri, Idas killed Castor and then was killed by a lightning bolt from Zeus. {SD 2:122}