WASHINGTON, Feb 3 (Reuters - U.S. law enforcement authorities said on Tuesday they had arrested a New Mexico man for sending more than 60 threatening white powder-laced hoax letters to banks in October.

They said Richard Leon Goyette was arrested on Monday at the airport in Albuquerque, New Mexico. They said he sent an e-mail on Sept. 26 saying he had lost $63,525 on his shares in Washington Mutual Bank WAMUQ.PK which was seized by U.S. banking regulators and sold to JP Morgan Chase and Co JPM.N. (Reporting by James Vicini, Editing by Eric Walsh)