Swarms of cicadas emerging in Midwest

YOU WILL ALSO SEE THEM- ALL OVER CHENGDU---bzzzzzzzzzzzzzz

These undated photos show the emergence of the periodical cicada. From left: the cicada molts from nymph to adult; in teneral stage, wings expanded, while its new exoskeleton hardens, and a red-eyed adult, skin hardened.

Swarms of cicadas emerging in Midwest
Billions expected after spending the past 17 years underground

CHICAGO - Coming soon: Brood XIII. It sounds like a bad horror movie. But it’s actually the name of the billions of cicadas expected to emerge this month in parts of the Midwest after spending 17 years underground.
The red-eyed, shrimp-sized, flying insects don’t bite or sting. But they are known for mating calls that produce a din that can overpower ringing telephones, lawn mowers and power tools.
Brood XIII is expected across northern Illinois, and in parts of Iowa, Wisconsin, Michigan and Indiana. Cicadas live only about 30 days as adults, and their main goal is mating.

They don’t harm humans, although they are clumsy and might fly into people. Birds, squirrels and pets, especially dogs, love to eat them, and they are high in protein.
“They’re going to have quite a meal. It’s going to be like Thanksgiving for them,” said Tom Tiddens, supervisor for plant health care at the Chicago Botanic Garden.
They are periodical cicadas, which are only found in the eastern half of North America. The annual, or dog-day cicadas, that appear every summer are common around the world.
The last massive emergence of periodical cicadas was in 2004, when Brood X emerged after 17 years underground in parts of 15 Eastern states. Some broods emerge after 13 years.

As nymphs burrowing underground, cicadas suck sap from tree roots. Almost all members of a group, or brood, burst from the ground within a couple days of each other.
They quickly climb the nearest vertical surface to molt and unroll their wings. In some heavily wooded areas, as many as 1.5 million cicadas per acre will crowd onto trees, expert say.
“It’s one of the greatest insect emergences on Earth,” said Daniel Summers, an entomologist at The Field Museum.

http://home.microsoft.com/