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Yearly, "annual" Neotibicen cicadas emerge in many areas of the United States. These green cicadas emerge in the summer. Broods of periodical cicadas, however, emerge every 13 or 17 years ...

This year, another brood of "periodical" cicadas is headed for the Tar Heel State. Yearly, "annual" Neotibicen cicadas emerge in many areas of the United States. These green cicadas emerge in the ...