But don’t worry—this hatch is a good thing! It’s a sign of healthy waters, abundant fish, and thriving ecosystems along the Susquehanna Greenway. A white mayfly.

Yes, you heard that right — a blizzard of mayflies. You’ve most likely seen the jaw-dropping photos of the mayfly hatches, where mayflies are covering every square inch of a surface.

Mayflies only hatch in warmer water, so don’t go looking for them in the fall, winter, or early spring. But as spring fades into summer, you’ll want to be on the lookout for one of these hatches.

The Great Lakes region's annual mayfly hatch, when the aquatic insects emerge in their winged form to mate, usually happens in late June to early July. The mayflies have such a short life span in ...

The hatch of mayflies is beginning in the southern part of Michigan, signaling the start of the yearly mayfly hatch. Mayflies are a familiar sight near many Michigan lakes when they emerge (or ...

Yes, you heard that right — a blizzard of mayflies. You’ve most likely seen the jaw-dropping photos of the mayfly hatches, where mayflies are covering every square inch of a surface.