A map of where to expect them NBC Chicago [Video]

A rare and likely massive emergence of two different broods of cicadas is expected in 2024 and while Illinois is in a unique position to see it all unfold, where can you expect the most?

This dual emergence hasn’t been seen for centuries, with Brood XIII and Brood XIX both set to pop out of the ground simultaneously. The rare occurrence, which could bring billions of cicadas to the surface, last happened 221 years ago.

While most of Illinois and the Chicago area will see at least one brood’s emergence, a narrow part of the state could see an overlap of both.

Here’s what we know so far:

“This is like the year for Illinois,” cicada expert Catherine Dana, an affiliate with the Illinois Natural History Survey, told NBC Chicago. “We are going to have cicadas emerging all over the state.”

The Northern Illinois Brood, or Brood XIII, will be most seen in parts of northern Illinois …