Blemys
Blemys, along with Orontes, and Oruandes, was a chief of the Deriades who fought against Dionysus in the Indian War. Being defeated by the god, he asked for mercy, and Dionysus sent him and his people to the mouth of the Nile where he became king of the Ethiopians. (The Argonautica by Apollonius Rhodius. The Aeneid by Virgil)
From Smith's Dictionary of Greek and Roman Biography and Mythology