Cicada 2024 Chicago. Chicago’s 2024 cicada art project.  — now the great dual periodical cicada emergence of 2024 — an event of a magnitude not seen since 1803 — has burst from below to join the earlier shows in the sky.

 — a cicada map that tracks spottings across the u.s. 2024 is a big year for periodical cicadas in illinois, where broods xiii and xix will be emerging throughout much of the state at the same time.