Mapping St. Louis Cicadas

Periodic Cicadas Emergence 2024

Periodic cicadas spend most of their lives underground, emerging in mass numbers after 13 or 17 years. 2024 marks a special time for periodic cicadas, as Brood XIX and Brood XIII will co-emerge across the eastern USA for the first time since 1803. Interested in learning more about periodic cicadas? Check out this great resource

In St. Louis, thirteen year cicada in Brood XIX have begun to emerge Mid-May 2024. We are conducting a research project to see how the distribution of these species changes across the St. Louis Region.

Reported hot spots for periodic cicadas (updated Friday May 31)

Our current record for cicada noise is 86 dB! Think the cicadas in your backyard are louder? Let us know by using the cicada sampling protocol and uploading your data here

Data Needed (updated Friday May 31)

We still need more cicada data from all over the St. Louis area, but we have few or no reports from the following regions:

Use the cicada sampling protocol and upload your data here

Check out our media coverage by St. Louis Public Radio, and the St. Louis Post Dispatch

Have a Little Time?

Help us understand more about the distribution and density of cicada species across the St. Louis region. Wherever you are, use your cell phone to track and measure cicada sounds. Don't see or hear any cicadas at your locations? We are interested in that too. 

WAnt to get more involved?

We will also be conducting more in depth sampling of cicada population densities across St. Louis green spaces. Interested in joining the fun? Send us an email at or for more information or to get involved.

About the Researchers

This project is led by University of Missouri - St. Louis researchers Dr. Aimee Dunlap and Dr. Sara Miller from the Department of Biology and Dr. Andrew Hurley from the Department of History. We are passionate about insects and the city of St. Louis. Learn more about Aimee's research, Sara's research and Andrew's research.