The circled areas on this screenshot of a National Weather Service radar are swarms of Mayflies, which are more commonly known as fishflies. (NWS) (NWS Detroit Facebook) DETROIT -- For those living on ...

CLEVELAND, Ohio (WOIO) -The National Weather Service (NWS) tweeted out radar pictures from Tuesday night that showed the annual mayfly invasion has begun in numbers so large they showed up on the ...

Ohio amusement park guests are getting more than they bargained for: they're being swarmed by an invasion of mayflies. Millions of mayflies are emerging from lakes and streams across the U.S. The bugs ...

COLUMBIA, Pa. (WHTM) — A bridge over the Susquehanna River is going dark for the annual mayfly invasion. Columbia police said the lights on the Route 462 bridge between Columbia and Wrightsville will ...

BERKELEY COUNTY, S.C. (WCIV) — Viewers have been telling ABC News 4 about what seems to be a larger than usual mayfly spawn in Berkeley County this year. The aquatic bugs, which hatch underwater and ...