What Greek character failed or died by arrogance?

An example of a character from Greek mythology whose death resulted from his arrogance was Bellerophon. He had tried to fly Pegasus up to Olympus, believing that he deserved a seat with the gods. This angered Zeus, who struck him out of the sky (some myths saying that Pegasus simply refused to budge). As a result, Pegasus left Bellerophon, and Bellerophon spent the rest of his days wandering, blind and crippled.