Leonard Collins, 46, is wanted in connection with eight bank robberies in the Edmonton area, Calgary and Winnipeg.
Police say Collins was arrested in Brandon, Man., on Nov. 2 and remains in custody on charges of robbery and theft under $5,000.
Last month the Canadian Bankers Association offered a $10,000 reward for information that would help police make an arrest and a conviction.
Police say they nabbed Collins following a tip from the public.
Edmonton police came up with the "Old Man Winter Bandit" nickname because many of the robberies were committed during cold weather snaps.
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