Videos show where cicadas have already emerged in the U.S.
Cicadas are returning by the trillions in the U.S. this year – a synchronized emergence that begins when the dirt reaches a precise 64 degrees. The buzzing bugs have already come out in some places – here's where.
Where will cicadas emerge in 2024?
Two cicada broods are emerging at the same time this year, meaning the U.S. will see more cicadas than usual.
Brood XIX, which comes out every 13 years, will emerge in the Southeast in Kentucky, Missouri, Arkansas, Tennessee, Mississippi, Alabama, Georgia, South Carolina, North Carolina and Virginia.
Brood XIII, which comes out every 17 years, will be seen in the midwest, primarily Illinois and Iowa.
Cicadas live underground for most of their lives, and at the end of their 13 or 17-year cycles, they emerge, fly into the trees, molt, mate and then die. Their babies then fall onto the ground and burry themselves into the dirt while they await their next emergence.
They only come out at the end of their cycle, when the dirt reaches 64 degrees. This is expected to happen in May or June in most places, according to Ken Johnson, a horticulture educator at the University of Illinois. But some states warm up faster than others – and they've already seen cicadas emerging.
Videos show where cicadas have already emerged
Near the Georgia-South Carolina border on April 25, CBS News National Correspondent Dave Malkoff found thousands of cicadas filling the air with their signature, loud buzzing sound. Some were seen molting, or shedding their skin, on a tree trunk.
"They take a while to turn into their full adult bodies," Malkoff said, holding a cicada. "They have to dry out and then they get their wings."
A small section of Illinois will see both Brood XIX and Brood XIII converge this year. In Champaign, Illinois last week, CBS Chicago's Maddie Weirus went on the hunt for nymphs – or baby cicadas – with University of Illinois entomologist Katie Dana. They dug in the dirt and were able to collect samples of small cicadas.
In some of the southern states expected to get cicadas, people have reported their emergence.
Marie Gruss Sherr captured several videos of cicadas in Durham, North Carolina. Most of them were sitting in plants.
Cicadas are often confused with locusts, which eat plants. Cicadas instead get their nutrients from small branches. Most trees, however, will remain unharmed.
In Georgia near Lake Oconee, one cicada spotter captured the droning noise the bugs emit when they emerge.
Male cicadas let out a loud humming sound to attract female cicadas, who will in turn flick their wings to signal they are available to mate.
Last week, the cicadas were so loud that confused residents in Newberry County, South Carolina actually called the sheriff's department to ask why they heard a "noise in the air that sounds like a siren, or a whine, or a roar." The department assured residents it was just male cicadas trying to mate.
How long do cicadas live?
After they've emerged from their 13 or 17-year slumber underground, cicadas have a relatively short lifespan. About five days after they emerge, they start to mate, with the females laying their eggs in woody plants, using their ovipositor, or egg-laying organ. They inject about 10-20 eggs into branches and can around 500 to 600 eggs in a season, according to Johnson.
The eggs hatch about six weeks after they're laid, but their parents die shortly after the mating process, lasting only about a month above ground.
(责任编辑:行业动态)
- Trump trials: Jack Smith is reportedly reconsidering his strategy.
- Apple's secret 'Marzipan' project could combine iOS and Mac apps
- “黑”乙炔气厂“隐身”养猪场
- 南农晨读丨歌王诞生
- Revolutionary grid
- The Measurers
- South Koreans divided over Kim Jong
- South Koreans divided over Kim Jong
- The crazy reason nearly every phone in Japan is waterproof
- Malan retires from international cricket
- North Korea calls for turning peninsula into 'peace zone' ahead of talks with US
- The crazy reason nearly every phone in Japan is waterproof
- Jimmy Fallon loves 'Gilmore Girls' and names his top four characters
-
18 Places for Epic Outdoor Adventure Across Colorado
The Centennial State is an outdoorsy dream, with hiking, mountain-biking, skiing, kayaking, birding ...[详细] -
Ariana Grande and Pete Davidson are uh, casually dating, I guess
Live from the latest sorta confusing but kinda cute celebrity relationship stage, it's Ariana Grande ...[详细] -
Vlahovic saves Juve in Bologna stalemate
MILAN:Dusan Vlahovic saved a point for Juventus with a last-gasp leveller in Saturday's 1-1 draw ...[详细] -
Top officials of US, Canada discuss North Korean sanctions evasion
U.S. Secretary of State Mike Pompeo (second from left in the background and U.S. Defense Secretary J ...[详细] -
Recently I had a friend over to whom I offered to audition my DIY PC speaker system. The first thing ...[详细]
-
Edward Snowden and human rights groups slam NSA bill that's rushing through Congress
The law that gives the National Security Agency the legal authority to spy on millions of Americans ...[详细] -
North Korea slams UN rapporteur over human rights comment
U.N. Special Rapporteur of human rights Tomas Ojea Quintana during a press conference at the Korea P ...[详细] -
Say hello to Miniature Mail, the cutest form of communication
What's better than receiving a letter in the mail? Receiving an adorably tiny letter in the mail, of ...[详细] -
Eng name ODI, T20I squads for Aus series
England is set to take on Australia at home in September in a three-match T20I series, followed by f ...[详细] -
Apple's secret 'Marzipan' project could combine iOS and Mac apps
Apple could be looking to bring its desktop and mobile software much closer together.The company is ...[详细]
- Pressure boost squeezes out more hydrogen from artificial leaves
- LIV Invitational will attract top players: Norman
- S210:全力打造大熊猫景观大道
- North Korean leader's speech shows international sanctions working
- 'Please find her': Man dies amid 25
- World's tallest empty hotel lit up with North Korean propaganda
- A herd of deer cause havoc during cross country race.