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The very horny and very loud insects haven't arrived in full force for the Mid-Atlantic cicada sex invasion quite yet, but when they do, they will come with a huge body-count advantage over people, outnumbering us 600-to-1, or possibly even more, according to the Associated Press. The exact number of noisy bugs that will emerge from beneath the soil for the sole purpose of making more cicada babies remains unknown. Several experts estimate that 30 billion of the brood will make the four- to six-week migration above ground and across much of the East Coast. Researcher Gary Hevel at the Smithsonian Institute pegs that number of the 2013 swarm at closer to 1 trillion. The states prime for the cicada mating brigade — North Carolina up through Connecticut — have an estimated total of 50.6 million people, according to the U.S. Census Bureau. The lower bug estimate is where the AP got its 600-to-1 figure, but if the cicadas come out in the trillions, the pesky (but ultimately harmless) noise-makers will outnumber people 20,000-to-1.

The pests won't populate the entire coast, however, so not all 50 million of us have to panic. The map below, from the experts at Cicada Mania, shows the most likely areas of infestation, with the dots referencing previous sightings:

A closer look at the Maryland, DC, Pennsylvania, and Virginia areas, for example, only shows this year's brood — known as Brood II — in certain parts of Maryland and Pennsylvania: