- Author: Kathy Keatley Garvey
Ever seen assassination attempts in your garden?
They are not pretty if you're the prey. Neither are the successful attempts.
Take the Zelus renardii, aka the leafhopper assassin bug.
They've been hanging out in our nectarine tree, cosmos, passionflower vine and Cleveland sage. They stalk or lie in wait and then jab their prey with their long rostrum, injecting a lethal saliva. Next: they suck out the contents. They "assassinate" such pests as aphids, leafhoppers, and caterpillars of the cabbage white butterfly.
Assassin bugs also feed on beneficial insects, too, such as bees, lacewings and lady beetles, aka ladybugs.
They're often confused with kissing bugs. Can "assassin bugs can carry Chagas disease, which can transmit to humans?" a reader asked.
We asked noted entomologist Lynn Kimsey, director of the Bohart Museum of Entomology and professor of entomology at UC Davis, for comment and clarification.
"Assassin bugs and kissing bugs belong to the same family of insects, the Reduviidae," Kimsey said. "However, biologically they are very different. Kissing bugs belong to 20 or more species in the subfamily Triatominae. They are nocturnal blood feeders, and you almost never see them during the day. Most of these species in California are infected with the protozoan that causes Chagas disease, but because of differences in how they feed, few if any can actually transmit it to humans."
"The pathogen is transmitted in their droppings and have to be inhaled or scratched into the skin," Kimsey pointed out. "This only happens if the kissing bug defecates during feeding. The California species do not defecate until they leave the host and go back to a resting site, so the chances of getting Chagas disease from a bug in California are cosmically small. The assassin bugs you see during the day belong to an entirely different group of reduviids. They are all predators on other insects. Some of them, like the common garden assassin bug Zelus, are irritable biters but they do not transmit any kind of pathogen to anything."
- Author: Kathy Keatley Garvey
If you've ever visited Briggs Hall during the annual campuswide Picnic Day at the University of California, Davis, you probably know about Maggot Art, an arts-and-crafts activity that fuses entomology with art. Every year thousands create Maggot Art at tables set up at Briggs.
Now you don't have to wait for the next UC Davis Picnic Day (the 104th annual), set April 21, 2018.
Maggot Art will be a family arts-and-crafts activity at the Bohart Museum of Entomology's special weekend open house from 1 to 5 p.m., Sunday, July 9 in Room 1124 of the Academic Surge Building on Crocker Lane, UC Davis. It's free and open to the public.
Members of the North American Forensic Entomology Association (NAFEA) will be special guests and presenters at the open house. NAFEA is on campus (July 7-12) for an annual conference and the open house will be part of its outreach activities. The scientists will field questions throughout the event. "We'll have scientists from across the country here at this family friendly event,” said Tabatha Yang, the Bohart Museum's education and outreach coordinator.
Here's how Maggot Art works: You dip a maggot into non-toxic, water-based paint and let it crawl--or guide it--on a piece of paper. It's suitable for framing or posting on your refrigerator. One thing's for sure: it's a definite conversation piece!
Forensic entomologist Rebecca O'Flaherty, a former graduate student of Kimsey's, coined the educational teaching curriculum, Maggot Art, back in 2001 at the University of Hawaii. She was rearing blowflies for her forensic research and wanted an activity to draw the interest of elementary school students in her teaching program. She sought to generate interest and respect for an entomological wonder that's more associated with road kills and goose bumps than art thrills.
Her Maggot Art activity quickly drew national interest. If you ever watched the television show, CSI, you saw one of her works, “Ancient Offering,” hanging on the permanent set in Gil Grissom's office. She has also exhibited her work at art shows, including a two-month exhibition at the Capital Athletic Club, Sacramento, in 2007.
“The beauty of the Maggot Art program,” she said, “is its ability to give hands-on, non-threatening experience with an insect that most people fear or loathe.”
And, no maggots are harmed in the making of these paintings. In fact, some children become so fond of the maggots that they ask to take them home.
(Editor's Note: Visitors entering the UC Davis campus on Sunday, July 9 are asked to take the Highway 113 exit to Hutchison Drive, as the Old Davis Road (which leads to the Visitors' Information Center booth) will be closed for construction. A paving project is underway: (https://www.ucdavis.edu/news/paving-project-close-old-davis-road/)/. Lot 46, the parking lot closest to the Bohart Museum, continues to be accessible. Parking is free.)
- Author: Kathy Keatley Garvey
She's in Vacaville, Calif., and the garden she is visiting today is a veritable oasis of blooms: Mexican sunflower (Tithonia rotundifolia), butterfly bush (Buddleia davidii) and lavender (Lavandula). And it's filled with bees.
That's why she's here.
Just as crooks rob banks because "that's where the money" is, predators hang around pollinator gardeners because "that's where the prey is."
The predator is hungry. Ah, what's that? She glides from her perch, her wings glowing in the morning sunshine. She circles the garden and quickly returns with a pollen-laden bee in her mouth.
She ignores the photographer sitting a few feet from her and begins to eat.
But what bee? What bee is on the dragonfly menu?
Native pollinator specialist Robbin Thorp, distinguished professor of entomology at the University of California, Davis, identified the bee from one photography angle (second photo below): a female sweat bee, genus Halictus.
"But what species?" asked Lynn Kimsey, director of the Bohart Museum of Entomology and professor of entomology at UC Davis.
Here's another angle (first photo below), showing the head.
That's all it took. "The bee is a female of Halictus ligatus, based on the head shape, especially the pointed part of the back right side of the head," Thorp said.
Amazing. Who would know that?
Robbin Thorp, that's who.
Robbin Thorp knows bees like we know the way home. World-renowned for his bee expertise, he co-authored of California Bees and Blooms: A Guide for Gardeners and Naturalists, and Bumble Bees of North America: An Identification Guide and co-teaches at The Bee Course, an American Museum of Natural History workshop held annually at the Southwestern Research Station, Portal, Ariz. The workshop is geared for conservation biologists, pollination ecologists and other biologists who want to gain greater knowledge of the systematics and biology of bees. This year's workshop is set Aug. 21-31.
Meanwhile, the dragonfly polishes off her meal, gazes at the photographer (What, are you still here? Sorry, I don't share!), and off she goes, zigzagging over the garden.
She will be back. She's punched only one hole of his meal ticket. Many holes--and many bees--remain.
- Author: Kathy Keatley Garvey
It's the Fourth of July, and amid our celebration of the adoption of the Declaration of Independence 241 years ago on July 4, 1776 and our glorious nation, we celebrate the red, white and blue--the colors of our flag.
But in the insect world, we can also celebrate the red, white and blue:
The red: The firecracker red flameskimmer dragonfly, Libellula saturata, a common dragonfly of the family Libellulidae, native to western North America. We love to see it perched on a bamboo stake in our pollinator garden.
The white: The delicate, petticoated cabbage white butterfly, Pieris rapae, common throughout much of the world, including North and South America, Europe, Great Britain, Asia, Australia and New Zealand. Beauty? Yes. It absolutely glows in the late afternoon sun. Beast? Yes. The caterpillar or larva is a serious pest of our cole crops, including cabbage, kale and mustard.
The blue: The blue spots in the tail of the Western tiger swallowtail, Papilio rutulus, a common swallowtail butterfly of North America. Its range stretches from much of North America, from British Columbia to North Dakota in the north to Baja California and New Mexico in the south, according to Wikipedia.
We've never been able to capture an image of a flameskimmer, cabbage white butterfly or Western tiger swallowtail in the same photo, but they don't need to be. Individually, their colors are strong and independent, just like our forefathers who signed the Declaration of Independence 241 years ago.
- Author: Kathy Keatley Garvey
Members of the North American Forensic Entomology Association (NAFEA) will be special guests and presenters at the open house hosted from 1 to 5 p.m., Sunday, July 9 at the Bohart Museum of Entomology.
The event, free and open to the public, takes place in the Bohart Museum, located in Room 1124 of the Academic Surge Building on Crocker Lane, UC Davis campus.
NAFEA is meeting for a conference at UC Davis July 7-12 and the Bohart open house will be part of its outreach activities. The scientists will field questions throughout the event.
"We'll have scientists from across the country here at this family-friendly event,” said Tabatha Yang, the Bohart Museum's education and outreach coordinator. Family arts and crafts activities are featured at each open house. A popular activity planned for the July 9th open house is maggot art, in which maggots are dipped into non-toxic, water-based paint and placed on a “canvas” (paper) to crawl around and create a painting. The activity, coined by entomologist Rebecca O'Flaherty, a former graduate student at UC Davis, is a traditional part of the UC Davis Department of Entomology and Nematology's Briggs Hall offerings at the campuswide UC Davis Picnic Day.
Forensic entomologist Robert Kimsey of the UC Davis Department of Entomology and Nematology served as president of the organization in 2015. (See news feature about Kimsey, "The Fly Man of Alcatraz.") Current president is Jason Byrd of the Department Pathology, Immunology and Laboratory Medicine University of Florida College of Medicine. The goal of NAFEA is to promote the development of forensic entomology throughout North America and to encourage co-operation with other similar international bodies. NAFEA defines its mission as “to provide a cooperative arena for forensic entomologists to interact and collaborate in ways that enhance the science, moral and ethical foundation, and reputation of forensic entomology.”
The fly photo below is of a male flesh fly (Sarcophagidae), "very likely genus Sarcophaga" (http://bugguide.net/node/view/458576/bgimage), according to senior insect biosystematist Martin Hauser of of the Plant Pest Diagnostics Branch, California Department of Food and Agriculture.
The July 9th open house is one of three open houses scheduled this summer. The others are:
Saturday, July 22, Moth Night from 8 to 11 p.m.: Moth Night, held in conjunction with National Moth Week, will enable visitors to explore nighttime nature through a blacklighting setup, enabling the collection of moths and other insects. The event takes place in the courtyard in back of the Bohart Museum. The museum will be open throughout Moth Night.
Sunday, Aug. 27: Bark Beetles and Trees, Forest Health in California, from 1 to 4 p.m.: The event is in collaboration with Steve Seybold, USDA Forest Service entomologist and an associate of the UC Davis Department of Entomology and Nematology. He and his students and staff will be there to show displays and answer questions.
The Bohart Museum, directed by Lynn Kimsey, professor of entomology at UC Davis, houses a global collection of nearly eight million specimens. It is also the home of the seventh largest insect collection in North America, and the California Insect Survey, a storehouse of the insect biodiversity. Noted entomologist Richard M. Bohart (1913-2007) founded the museum.
Special attractions include a “live” petting zoo, featuring Madagascar hissing cockroaches, walking sticks and tarantulas. Visitors are invited to hold the insects and photograph them.
The museum's gift shop, open year around, includes T-shirts, sweatshirts, books, jewelry, posters, insect-collecting equipment and insect-themed candy.
The Bohart Museum's regular hours are from 9 a.m. to noon and 1 to 5 p.m. Mondays through Thursdays. The museum is closed to the public on Fridays, Saturdays and Sundays and on major holidays. Admission is free.
More information on the Bohart Museum is available by contacting (530) 752-0493 or email bmuseum@ucdavis.edu.
Traffic: Note that Old Davis Road that goes past the Visitors' Information Center will be closed due to construction of a paving project (https://www.ucdavis.edu/news/paving-project-close-old-davis-road/) Visitors should enter the campus via Highway 113 and take the Hutchison exit. The parking lot closest to the Bohart Museum is Lot 46.