- Author: Kathy Keatley Garvey
Wings up! Let's go!
The monarch fall migration is underway.
"Unlike most other insects in temperate climates, monarch butterflies cannot survive a long cold winter. Instead, they spend the winter in roosting spots," explains Monarch Watch. "Monarchs west of the Rocky Mountains travel to small groves of trees along the California coast. Those east of the Rocky Mountains fly farther south to the forests high in the mountains of Mexico. The monarch's migration is driven by seasonal changes. Daylength and temperature changes influence the movement of the monarch."
"In all the world, no butterflies migrate like the monarchs of North America. They travel much farther than all other tropical butterflies, up to three thousand miles. They are the only butterflies to make such a long, two-way migration every year. Amazingly, they fly in masses to the same winter roosts, often to the exact same trees. Their migration is more the type we expect from birds or whales. However, unlike birds and whales, individuals only make the round-trip once. It is their children's grandchildren that return south the following fall."
Have you seen any migratory monarchs? It's basically a "no" for our scientists at the Bohart Museum of Entomology , UC Davis.
- UC Davis distinguished professor emerita Lynn Kimsey, who directed the Bohart Museum for 34 years until she retired Feb.1: No.
- Bohart Museum associate and UC Davis School of Medicine employee Greg Kareofelas: No. "I still have not seen a monarch (but I have not been 'out and about' much this summer)
- Jeff Smith, curator of the Bohart Museum's Lepidoptera collection: Maybe. "I may have seen 1 monarch in my yard (Rocklin) yesterday (Sept. 16) as a fly-by."
It's not so rosy in the Pacific Northwest (PNW), according to Washington State University entomologist David James, who studies migratory monarchs.
On Aug. 31, he posted this on his Facebook page, "Monarchs in the Pacific Northwest": One month ago, things were looking very rosy in the PNW monarch world with an 82% increase in sightings during June and July compared to the same months in 2023. Sadly, things are now not so rosy if the number of reported sightings are a good barometer of what's happening out there (and they have been in the past few years). During August 2023 there were 172 confirmed monarch sightings in the PNW. This year there has only been 108 and most of these (80%) were in the first two weeks. The second half of August has seen very few monarchs reported in the PNW. I-Naturalist, the reporting site most used by monarch recorders, has had NO monarch sightings posted in OR, WA, ID or BC since August 12-16. This is concerning because the second half of August into September is when the third PNW-bred generation should be emerging and migrating. There is still time for sightings to pick up and hopefully they will. So please keep watching and reporting your sightings to I-Naturalist or Journey North."
One of his WSU-tagged monarchs (from citizen scientist Steve Johnson) fluttered into our garden on Sept. 6, 2016 from Ashland, Ore. (See Bug Squad)
Hoping to see another tagged monarch.
Migrating monarchs began arriving in our Vacaville pollinator garden this year on Sept. 17 for some flight fuel on their way to their overwintering spots in coastal California.
They love the Mexican sunflower, Tithonia rotundifola. It's a great fall nectar source...and the colors are a perfect match...
Wings up! Let's go!
- Author: Kathy Keatley Garvey
Folks are looking forward to the next open house at the Bohart Museum of Entomology at UC Davis.
It's set Saturday, Sept. 28 from 1 to 4 p.m. and the theme is "Museum ABC's: Arthopods, Bohart and Collecting." It's free and family friendly. Parking is also free.
The Bohart Museum, located in Room 1124 of the Academic Surge Building, 455 Crocker Lane, UC Davis, hosts open houses throughout the academic year. It's an opportunity to talk one-on-one with the scientists and see the displays.
The Bohart Museum houses a global collection of eight million insect specimens. Plus, it maintains a live petting zoo (including Madagascar hissing cockroaches, walking sticks and tarantulas) and an insect-themed gift shop, stocked with T-shirts, hoodies, jewelry, posters, books, collecting equipment and more.
The Bohart scientists kept regular visitors' hours this summer on Tuesdays. Visiting hours are now over for this summer. Also, starting Monday, Sept. 1 and continuing through Sept. 22, the insect museum will be closed to the public. See website. Also see the Bohart video from last year, featuring then director Lynn Kimsey, UC Davis distinguished professor of entomology and now emerita, as of Feb. 1, 2024. She continues her research at the Bohart and also continues as the newsletter editor.
Assuming the reins of director, as of Feb. 1: Professor Jason Bond, the Evert and Marion Schlinger Endowed Chair, UC Davis Department of Entomology and Nematology, and associate dean, Agricultural Sciences, UC Davis College of Agricultural and Environmental Sciences.
Meanwhile, mark your calendar for Saturday, Sept. 28. If you're lucky, you may see a monarch flying around on campus on its way to an overwintering site along coastal California. If not, visit the Lepidoptera collection, curated by entomologist Jeff Smith. You'll see lots of monarch specimens.
Smith says the number of moth and butterfly specimens at the Bohart is about 825,454. Of that number, some 618,750 are moth specimens and the rest are butterflies.
For more information, access the website at https://bohart.ucdavis.edu/ or email bmuseum@ucdavis.edu.
- Author: Kathy Keatley Garvey
And it's double delightful with twins!
Such was the case at the Vacaville Museum Guild's recent Children's Party when two-year-old twins Ford and Wyatt Devine were thumbing through "The Story of the Dogface Butterfly," a children's book written by UC Davis doctoral alumna Fran Keller, a Folsom Lake College professor and a Bohart Museum of Entomology research scientist.
The twins, along with big brother, Buck, 7, were among the youngsters fascinated by the book, which features macro images by Bohart associate Greg Kareofelas and illustrations by Laine Bauer, then a UC Davis student.
It was just one of the many attractions at the annual Children's Party, held Aug. 8 in the museum courtyard.
Not many know that the butterfly's most prevalent habitat is the 40-acre Shutamul Bear River Preserve near Auburn, on a Placer Land Trust conservation site; Kareofelas serves as a docent on the Placer Land Trust tours. (See virtual tour on YouTube). The butterfly is there because its larval host plant, false indigo (Amorpha californica), is there.
Are there dogface butterflies in Vacaville? Yes. The butterfly's breeding grounds include Gates Canyon. (See UC Davis emeritus professor Art Shapiro's website.)
Director of the insect museum is Professor Jason Bond, the Evert and Marion Schlinger Endowed Chair, UC Davis Department of Entomology and Nematology, and associate dean, Agricultural Sciences, UC Davis College of Agricultural and Environmental Sciences.
Meanwhile, Bohart scientists are gearing up for their next open house, set for 1 to 4 p.m., Saturday, Sept. 28. The theme is "Museum ABC's: Arthropods, Bohart and Collecting." All open houses are free and family friendly. Parking is also free. For more information, contact bmuseum@ucdavis.edu or access the website at https://bohart.ucdavis.edu.
- Author: Kathy Keatley Garvey
Did you know that California has a state insect? It does.
Is it the honey bee? No.
Is it the lady beetle (ladybug)? No.
Bumble bee? No.
It's the California dogface butterfly (Zerene eurydice), an insect found only in California.
The state Legislature designated it as the state insect in 1972. The butterfly is nicknamed "dogface" in reference to the silhouette of what resembles a poodle head on the wings of the male. The female is mostly solid yellow except for a single black spot on its upper wings.
Most people have never seen it in the wild. But if you've visited the Bohart Museum of Entomology at UC Davis, home of a global collection of 8 million insect specimens, you know that its logo is the California dogface butterfly.
And on Thursday, Aug. 8 those attending the Vacaville Museum Guild's Annual Children's Party (sold out) will see specimens from the Bohart Museum, as well as macro images of the butterfly, the work of talented Bohart associate Greg Kareofelas of Davis.
Tabatha Yang, education and outreach coordinator of the Bohart, has donated a drawer of the specimens for visitors to see. They can also pose in a cutout of the Bohart Museum's California dogface butterfly banner. And thumb through a 35-page children's book, "The Story of the Dogface Butterfly," written by UC Davis doctoral alumna Fran Keller, a professor at Folsom Lake College and a Bohart Museum research scientist. The book includes images by Kareofelas and Keller. Laine Bauer, then a UC Davis student, contributed the illustrations.
The book, published in 2013, tells the untold story of the California dogface butterfly, and how schoolchildren became involved in convincing the State Legislature to select the colorful butterfly as the state insect. Fourth grade students of Betty Harding and Shirley Klein, Dailey Elementary School, Fresno, advocated it as the state insect. The teachers and students enlisted the help of State Assemblyman Kenneth L. Maddy, who authored AB 1834. On July 28, 1972, Governor Ronald Reagan signed the bill into law, designating the California dogface butterfly the official "State Insect of California." (Read more on how the butterfly became the state insect under the Ronald Reagan administration.)
The most prevalent habitat of the California dogface butterfly is the 40-acre Shutamul Bear River Preserve near Auburn, on a Placer Land Trust conservation site; Kareofelas serves as a docent on the Placer Land Trust tours. (See virtual tour on YouTube). The butterfly is there because its larval host plant, false indigo (Amorpha californica), is there.
Are there dogface butterflies in Vacaville? Yes. The butterfly's breeding grounds include Gates Canyon. (See UC Davis emeritus professor Art Shapiro's website.)
As mentioned, few people see the butterfly in the wild. However, its image graces a first-class U.S. stamp and California driver licenses. It's also depicted on the California State Fair monorail.
Butterfly Poster and Book. The Vacaville Museum Guild's Children's Party (see what's on tap) also will spotlight a Bohart Museum poster by Kareofelas-Keller that depicts the male and female butterfly. (Both the poster and the book are available for sale in the Bohart gift shop; net proceeds benefit the insect museum's education, outreach and research programs.)
The Bohart Museum, located in Room 1124 of the Academic Surge Building, 455 Crocker Lane, also houses a petting zoo (featuring stick insects, Madagascar hissing cockroaches and tarantulas) and a insect-themed gift shop, stocked with books, posters, t-shirts, hoodies, jewelry and collecting equipment. Director of the insect museum is Professor Jason Bond, the Evert and Marion Schlinger Endowed Chair, UC Davis Department of Entomology and Nematology, and associate dean, Agricultural Sciences, UC Davis College of Agricultural and Environmental Sciences.
The Bohart is open for walk-in visitors on Tuesdays from 9 a.m. to noon and from 1 to 4:30 p.m. through Aug. 27. It will be closed to the public Sept. 1-22.
The next open house is set for 1 to 4 p.m., Saturday, Sept. 28. The theme is "Museum ABC's: Arthropods, Bohart and Collecting." All open houses are free and family friendly. Parking is also free. For more information, contact bmuseum@ucdavis.edu or access the website at https://bohart.ucdavis.edu.
Links:
- Golden Year for the California Dogface Butterfly (Bug Squad post, Feb. 4, 2022)
- Rob on the Road, KVIE, Public Broadcasting Service (PBS) (First aired July 7, 2017)
- Capital Public Radio Piece on Dogface Butterfly (featuring Greg Kareofelas)
- Pacific Land Trust website (PLT maintains a conservation site in Auburn that's the home of the California dogface butterfly)
- Author: Kathy Keatley Garvey
Those attending the Bohart Museum of Entomology's recent Moth Night learned all about silkworms, moths, cocoons and textiles at a display staffed by Michael "Mike" Pitcairn, a retired senior environmental scientist/supervisor with the California Department of Food and Agriculture.
Mulberry silk production originated in China at least 5000 years ago. Folklore indicates that the wife of a Chinese emperor watched a cocoon fall from a mulberry tree into her teacup. She reportedly watched the cocoon unravel, revealing a long delicate thread. She collected thousands of the threads and made a robe for the emperor.
Biology Professor Richard Peigler of University of the Incarnate Word, San Antonio, donated the items to the Bohart Museum in 2020, said UC Davis Distinguished Professor Emerita Lynn Kimsey, former director of the Bohart. "What's cool about it is," she said, "is that the silk pieces were made from silk produced by multiple silk moth species, not just the one we think of commercially."
The mulberry moth is the primary producer of silk. Tussah is the most well known of the wild silks.
Peigler has worked extensively with wild silk moths, studying their phylogeny, taxonomy and biology. His donations comprise the Wild Silks collection at the McGuire Center for Lepidoptera and Biodiversity, Florida Museum of Natural History, University of Florida.
"Wild silk is not nearly as luxurious as domestic silk found in today's clothing industry," the McGuire Center website relates. "This is raw, rough, and textured silk which feels almost paper-like to the human touch. This silk is harvested from the cocoons of various silk moths that encounter little to no human interaction. The practice of producing silk – termed sericulture, stretches back 5 millennia, and astonishingly, is a craft performed to this very day."
They included a woman's chaddar (head covering and shawl) and tablecloths.
Eri Silk (Samia ricini). Displayed was a woman's chaddar of 100 percent eri silk (Samia ricini), handwoven in Assam, India, and of naturally colored yarn. The brocade was done in traditional Assamese motifs. Women in rural villages in Northeast India wear these traditional shawls in winter. Peigler bought the chaddar for $47 from a seller in India in 2019.
Tussah Silk (Antheraea pernyi). Displayed was an antique tablecloth of tussah silk, handwoven in China in the 1920s or 1930s. The tablecloth, hand-reeled and in the natural beige color, is hand-embroidered with mulberry silk (Bombx mori). China has exported thousands of tablecloths and handkerchiefs made of tussah silk (called "pongee" or "Shantng silk") to the United States and the United Kingdom. Peigler purchased this tablecloth in April 2019 from an internet seller in Mount Dora, Fla., for $35.
Also of interest was a sample of tussah silk fabric in a pattern called "Honeycomb," mimicking the hexagonal cells in a bee colony. "The yarns were machine spun and the fabric was machine woven," said Peigler, who purchased the fabric from Oriental Silk Import Co. in Los Angeles for $32.95 per yard. There are several species of tussah silk moths (family Saturniidae) in China, India, Japan, Africa and North America.
Mulberry Silk (Bombx mori). Displayed was a tablecloth created in the early 1900s in China. "It was spun, woven and embroidered by hand," Peigler related.
The Bohart Museum, founded in 1946, is located in Room 1124 of the Academic Surge Building, 455 Crocker Lane, UC Davis campus. It also includes a live petting zoo and an insect-themed gift shop. Director of the museum is Professor Jason Bond, the Evert and Marion Schlinger Endowed Chair of UC Davis Department of Entomology and Nematology, and associate dean, Agricultural Sciences, UC Davis College of Agricultural and Environmental Sciences.
The Bohart Museum is open to walk-in visitors on Tuesdays from 9 a.m. to noon and from 1 to 4:30 p.m. through Aug. 27. It will be closed to the public Sept. 1-22.
The next open house is set for 1 to 4 p.m., Saturday, Sept. 28. The theme is "Museum ABC's: Arthropods, Bohart and Collecting." All open houses are free and family friendly. Parking is also free. For more information, contact bmuseum@ucdavis.edu or access the website at https://bohart.ucdavis.edu.