Wisconsin Is Getting Smothered by Millions of Horny Maylies

Close your mouth while looking at these photos, or a bug might fly in.

by John Metcalfe

This storm-cloud-looking apparition is actually a massive swarm of mayflies, an “emergence" of them, to get all Lovecraftian. Mayfly nymphs spend a year or two in the water (in this case, the Mississippi River) munching on organic decay.

Then, when summer arrives, they take flight en masse and proceed to make sweet bug love before immediately going back to the water to lay eggs and die.

This year’s emergence was so large people were comparing it to the last Biblical-style, one in 2012. If you don’t recall that stunning example of life’s majesty…

(read more: CityLab)

photographs via: La Crosse NWS