Image Description of "17 Year Periodical Cicadas"

The fascinating pics below, is section of "17 Year Cicada" publishing which is labeled within "17 Year Periodical Cicadas", "Cicada Underground 17 Years", "Green Cicada" and "Cicada Why 17 Years".

17 Year Cicada: 17 Year Periodical Cicadas - Do you know that cicadas are quite spectacular insects with dramatic appearances?

There exist 6 species of periodical cicadas: with a 17-year cycle (3) and with a 13-year cycle (3). But all those three species of each life-cycle group differ in size, color, and sound. The 17-year-old cicadas tend to locate in the North, while the 13-year-old ones - in the South. Nevertheless, both types may emerge in the same forest.

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