Mapping Updates

2020 Magicicada Records

This map shows the progress of our mapping teams as we map Brood IX. Not to be redistributed or published without prior written permission.

The map above shows confirmed presence (cicada symbols) periodical cicada records collected by project collaborators during the current periodical cicada emergence. Small symbols indicate scattered individuals; large symbols indicate choruses. Negative (absence) records are indicated by a black “X”. Verified historical records of Brood IX are indicated by a red “H”, and verified records of select neighboring broods are represented by red circles with the brood number inside.