A rare double brood co-emergence of cicadas will see trillions of the wide-eyed critters clumsily buzz through 17 U.S. states over the next few months.

Better known for their cacophony of calls than their grace, there are more than 200 species of cicadas across North America, but the co-emergence of two specific broods of different life cycles happens <a data-evt-val="{&quot;control_fields&quot;: {&quot;mparticle&quot;: {&quot;keys&quot;: {&quot;click_source_type&quot;: &quot;click_source_type&quot;, &quot;anchor_text&quot;: &quot;anchor_text&quot;, &quot;target_url&quot;: &quot;target_url&quot;, &quot;layout_section&quot;: &quot;layout_section&quot;}, &quot;mp_event_type&quot;: &quot;Navigation&quot;, &quot;extra_keys&quot;: [&quot;click_vertical_position_percentage&quot;, &quot;click_vertical_position_pixels&quot;]}}, &quot;click_source_type&quot;: &quot;in-page link&quot;, &quot;anchor_text&quot;: &quot;only once every 221 years&quot;, &quot;target_url&quot;: &quot;https://cicadas.uconn.edu/#&quot;, &quot;layout_section&quot;: &quot;in-page-link&quot;}" rel="noopener noreferrer" data-evt="click" data-evt-typ="click" href="https://cicadas.uconn.edu/#" target="_blank">only once every 221 years</a>.

Over the next few months, and for the first time since 1803, cicada broods XIX and XIII are co-emerging across 17 U.S. states{ai:summary}<p>A mysterious phenomenon of double cicada emergence is set to create chaos in 17 states. The buzzing insects, known for their loud calls, will be making a rare appearance that occurs once every 221 years. #nature</p>

Trillions of cicadas are emerging in 17 U.S. states. Is Canada next?

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