Periodical cicada

Periodical Cicada
Periodical Cicadas often emerge in large numbers and the loud, high-pitched whirring sound which they produce can be quite ominous. The female Periodical Cicada lays its eggs within the twigs of trees; this action ultimately kills the twigs. The eggs hatch shortly and the nymphs fall to the ground where they feed on root sap for 13 or 17 years before emerging, and then molting to the adult stage in late spring. Periodical Cicadas occasionally damage trees such as oaks, maples, and a variety of fruit trees such as apple.

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March 11, 2008