While everyones got their feathers ruffled about Cicada Brood X, the folks up in Central Minnesota were dealing with a different kind of insect infestation of biblical proportions. This mayfly hatch happened during a walleye fishing tournament just after sunset on Lake Edwards in Central MN. Mayflies spend 99% of their life underwater, and once they emerge they typically live just long enough to mate (less than 24 hours). Short lived but gnarly to in the middle of. Uff-da.