While mayflies may be an annoyance for some, scientists say their emergence is actually a positive sign.

It is the time of the year where mayflies swarm parts of the Upper Mississippi River and Great Lakes region. Some of these ...

While mayflies may be an annoyance for some, scientists say their emergence is actually a positive sign: "Be proud of our ...

Mayflies by the millions are invading Ohio and swarming Lake Erie communities. Check out the video from Put-in-Bay.

Officials from the Ohio Division of Wildlife stumbled upon thousands of mayflies in the middle of Ottawa County this week.

Summer’s return to northeast Ohio is bringing an unwelcome sight for some visitors: mayflies.Mayflies have taken over the ...

As they typically do in the months of June and July, mayflies are once again swarming into communities along the Lake Erie ...

Mayflies or fishflies have emerged from the warm waters of Lake St. Clair and Lake Erie to mate then die.

You can't stop Michigan's annual mayfly swarm, but here are some tips that may discourage them from hanging around your home.

A motorcyclist was injured in an unusual wipeout caused by a massive swarm of mayflies on a local road on Sept. 13.