Once where tall trees have stood, are now replaced my monuments of steel and glass. Humanity is the only species on the planet whose populations are running unchecked with nothing to preserve the balance. The majority of this planet's forests and undisturbed areas are expected to disappear within the next 30 to 40 years. Once the forests are gone, so will many species of cicadas. Some which we may never learn ever existed.
Human negligence is also another key factor in the downfall of the cicada.
These moths multiply and appear in great numbers that rival the colonies of the Periodical Cicada. The moths are much more destructive than a Periodical Cicada colony could ever be. The larvae of this moth can completely defoliate many acres of trees and after a couple years of continuous feeding will eventually kill the host tree itself. Two areas where the Magicicadas have to compete for the same food sources. These birds feed on grain, cause damage by their droppings, carry many diseases, and most of all, they compete with and have caused the decline of several native bird populations.