Posts Tagged: Lynn Kimsey
The world's largest hornet (Vespa mandarinia) is huge.
Just how huge?
We photographed a two-inch specimen last week at the Bohart Museum of Entomology at UC Davis. Among the insect musem's nearly eight million specimens is the giant hornet.
Tabatha Yang, education and outreach coordinator, placed a honey bee next to it for size comparison.
The news about this hornet is not good. The Chinese news agency Xinhua declared that the insect is wreaking havoc in northwestern China. Some 42 people have died from its stings since last July and some 1600 others have been injured.
"The problem with this particular hornet is that it's big, sort of thumb-sized, and it packs a lot of venom," Lynn Kimsey, director of the Bohart Museum and UC Davis professor of entomology told National Geographic News.
"And its nests get fairly large, including maybe several hundred individuals. They are aggressive, they are predatory, and they have been known to kill and eat an entire colony of honey bees," she said.
The hornet destroy the entire colony within minutes.
As Kimsey says, this hornet is a predator and highly aggressive.
The world's largest hornet next to a honey bee. (Photo by Kathy Keatley Garvey)
Lynn Kimsey, director of the Bohart Museum of Entomology and professor of entomology at the University of California, Davis, is fielding scores of calls after the National Geographic News (NGN) posted an article today (Oct. 4) about “the world’s biggest hornet wreaking havoc in northwestern China.”
Quoting the Chinese news agency Zinhua, NGN reporter Brian Handwerk wrote that 42 people have died and some 1600 have been injured “since the outbreak of the Asian giant hornet (Vespa mandarinia) began in July…and attacks continue even as local authorities take action, including destroying hundreds of hives and improving medical treatment for victims.”
Handwerk quoted Kimsey as saying "The problem with this particular hornet is that it's big, sort of thumb-sized, and it packs a lot of venom. And its nests get fairly large, including maybe several hundred individuals. They are aggressive, they are predatory, and they have been known to kill and eat an entire colony of honeybees.”
"And its nests get fairly large, including maybe several hundred individuals. They are aggressive, they are predatory, and they have been known to kill and eat an entire colony of honeybees," Kimsey told NGN.
Kimsey, known by her colleagues far and wide as "The Wasp Woman," spent much of the day answering news media queries.
Reached at her Bohart Museum office this afternoon, she said this species is “pretty aggressive.” This species is about two inches long.
“The giant hornet uses its venom to capture prey and to defend the colony,” she said. “But actually, I think the honey bee venom is actually more powerful than this hornet’s venom. The hornet is larger, has more venom, and can sting as many times as it wants." (Only the females sting.)
Unlike a hornet, a worker honey bee dies after stinging.
“This time of year, the hornet colonies are grumpy and agitated,” Kimsey said.
And yes, the Bohart Museum, located in Room 1124 of the Academic Surge Building on Crocker Lane, UC Davis campus, houses giant hornet specimens. After all, it maintains a worldwide collection of nearly 8 million insect specimens.
"The stinger of the Asian giant hornet," according to Wikipedia, "is about 6 mm (1/4 of an inch) in length, and injects an especially potent venom that contains, like many bee and wasp venoms, a cytolytic peptide (specifically, a mastoparan) that can damage tissue by stimulating phospholipase action, in addition to its own intrinsic phospholipase. Masato Ono, an entomologist at Tamagawa University near Tokyo, described the sensation as feeling "like a hot nail being driven into my leg."
This is the world's largest hornet, Vespa mandarinia. (Photo by Terry Prouty, courtesy of Wikpedia. http://en.wikipedia.org/wiki/User:Hornetboy1970)
That would be Agraulis vanillae.
Visitors to the open house saw Gulf Frit eggs, caterpillars, chrysalids and adults.
UC Davis professor Christina Cogdell, who teaches art design and history, loaned some of her Gulf Frit population, as did Bohart volunteer Greg Kareofelas and yours truly. Fortunately, museum officials collected them on a sunny Friday because the Gulf Frits would not have been flying on rainy Saturday.
The Red Barn Nursery, Davis, loaned a potted passionflower vine, which the entomologists decorated with caterpillars. Tabatha Yang, public education coordinator and outreach coordinator, affixed a sign that read "How many caterpillars can you find?"
As one caterpillar crawled up the sign, Bohart Museum director Lynn Kimsey held up one finger, designating "One!"
As if on a cue, a caterpillar began pupating.
Butterfly expert Art Shapiro, UC Davis professor of evolution and ecology, stopped by. He had initially planned to go on a butterfly monitoring field trip, but rain dashed his plans.
All in all, it was a Gulf Frit kind of day, despite the downpour.
Seven more weekend open houses are planned throughout the 2013-2014 academic year. The next one, "Beauty and the Beetles," is set from 1 to 4 p.m., Saturday, Nov. 23 in Room 1124 of the Academic Surge building on Crocker Lane, UC Davis campus. The events are free and open to the public. All ages are welcome.
The museum houses nearly eight million insect specimens, plus a "live petting zoo" and a gift shop. Noted entomologist Richard M. Bohart founded the museum in 1946.
An adult Gulf Fritillary butterfly. (Photo by Kathy Keatley Garvey)
Lynn Kimsey, director of the Bohart Museum of Entomology and professor of entomology at UC Davis, holds up a finger to designate "One caterpillar." (Photo by Kathy Keatley Garvey)
Caterpillar pupating. (Photo by Kathy Keatley Garvey)
At the Bohart Museum of Entomology's open house on Saturday, Sept. 21 from 1 to 4 p.m., at the University of California, Davis, you'll see not one, but two, praying mantids.
And very much alive.
Doctoral candidate Fran Keller collected one, and the other is the one I collected last Saturday when it was preying on a monarch butterfly. (When I lifted the struggling monarch from the lantana, the praying mantis came attached.)
That was five days ago. For her dining pleasure, I have offered "my" praying mantis one cabbage white butterfly, one skipper butterfly, five live crickets, and six wiggly mealworms. We know she is a "she" because she's quite pregnant. But ahem. Someone in my household (no names specified here to protect the guilty) thinks the terrarium she occupies is a "torture chamber." When I popped in a cabbage white butterfly, Mrs. Praying Mantis and Mrs. Cabbage White Butterfly slept side-by-side all night, an inch apart, and then the next morning, Mrs. Praying Mantis ate her.
She left only the wings.
Hey, as butterfly expert Art Shapiro, UC Davis distinguished professor of evolution and ecology, says: "A praying mantis has to eat, too."
Now Mrs. Praying Mantis is renting quarters, having bed and breakfast, at the Bohart Museum. I assume she is quite happy with her surroundings and is quite pleased with her menu, which I'm sure includes cabbage whites (pests).
Lynn Kimsey, director of the Bohart Museum, assures me that Mrs. P.M. (that could stand for Pest Management!) cannot fly even if she wanted to. "She's too heavy," she said.
There's a twig in her terrarium for Mrs. P.M. to lay her eggs--if she so desires. I'm not sure she desires.
But, back to the open house. Theme of the open house (free and open to the public), is "Live at the Bohart!" And that includes Mrs. Praying Mantis, aka Mrs. P.M. The venue: Room 1124 of thee Academic Surge building on Crocker Lane, formerly California Drive. Although the Bohart houses nearly eight million insect specimens from around the world, it also has a "live" petting zoo that includes Madagascar hissing cockroaches, walking sticks, a rose-haired tarantula and an elusive jumping spider (that came in as a visitor on a bouquet of roses and subsequently became a permanent resident) and a “Harry Potter bug” (which is an amblypygid commonly known as a whip spider or tailless whip scorpion).
The real attractions this Saturday, however, will be cabbage white butterflies and Gulf Fritillary butterflies: museum officials will tell you how to rear them.
I imagine Mrs. Praying Mantis will concentrate quite heavily on the movements of the cabbage white butterflies and the Gulf Fritillaries.
Waiter! Will you hurry, please? I'm hungry.
Night time for the praying mantis. (Photo by Kathy Keatley Garvey)
The praying mantis, quite camouflaged. (Photo by Kathy Keatley Garvey)
It happened so quickly.
The monarch butterfly (Danaus plexippus) fluttered to the lantana for a sip of nectar when the unexpected happened.
A praying mantis, lying in wait, leaped high and grabbed it by its wings.
Unable to fly, the monarch struggled to right itself. The praying mantis kept its viselike grip.
At the time, I was focusing on the butterfly and didn't see the predator. When I saw the butterfly struggling, I walked over to it and lifted it out of the lantana, only to find a praying mantis attached to it.
The butterfly did not make it. The praying mantis, a female about to lay eggs, did. She will be shown at the Bohart Museum of Entomology's open house on Saturday, Sept. 21 from 1 to 4 p.m. and then released.
Theme of the Bohart open house is "Live at the Bohart!" Live? That's because the open house will feature live insects, such as cabbage white and Gulf Fritillary butterflies, Madagascar hissing cockroaches, walking sticks, a rose-haired tarantula and a “Harry Potter bug,” which is an amblypygid commonly known as a whip spider or tailless whip scorpion.
The Bohart, located on the UC Davis campus in Room 1124 of Academic Surge on Crocker Lane, formerly California Drive, is home to nearly eight million insect specimens, collected throughout the world.
At the open house, museum officials will tell you how to rear a cabbage white butterfly and other butterflies, such as Gulf Fritllaries. You can talk insects with director Lynn Kimsey; senior museum scientist Steve Heydon; public education/outreach coordinator Tabatha Yang, and others. The gift shop will be open for the purchase of t-shirts, jewelry, posters, books, insect nets and other items.
As for the praying mantis, on Saturday she will be freed to catch more prey.
Let's hope it is a cabbage white instead of a monarch./span>
A praying mantis leaps at a fluttering butterfly. (Photo by Kathy Keatley Garvey)
With its viselike grip, the praying mantis holds on to its prey. (Photo by Kathy Keatley Garvey)
The praying mantis tightens its grip. (Photo by Kathy Keatley Garvey)
The monarch, mangled from its encounter with the praying mantis, didn't make it. (Photo by Kathy Keatley Garvey)