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April 20, 2024

A quick way to tell the difference between the 7 periodical cicadas species

Filed under: Brood XIII | Brood XIX | Magicicada | Periodical — Dan @ 8:50 am

Here is a quick way to tell the difference between the 7 periodical cicada species:

Download this chart. Click/tap for a larger version:

The songs of Magicicada cassini (17-year) and Magicicada tredecassini (13-year) are essentially identical:

M. cassini:

M. tredecassini:

The songs of Magicicada septendecula (17-year) and Magicicada tredecula (13-year) are essentially identical:

M. septendecula (©Joe Green):

M. tredecula:

The songs of Magicicada septendecim (17-year), M. neotredecim (13-year), and Magicicada tredecim (13-year) are essentially identical. M. neotredecim varies the sound of its call in the presence of M. tredecim.

M. septendecim:

M. neotredecim (© Insect Singers)

M. tredecim (© Insect Singers)

And/or watch this video:

Then read this and listen to the sound files on the page: Where will 17 & 13 Year Periodical Cicada Broods emerge next?

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