Mariposa Butterfly Festival Parade 2015 (Video) Details Last Updated: Thursday, 07 May 2015 03:38 Published: Thursday, 07 May 2015 03:36 View Comments Mariposa Butterfly FestivalMay 7, 2015 - The 2015 Mariposa Butterfly Festival Parade was held on Saturday, May 2, 2015 in Mariposa, California. View the discussion thread. back to top