- 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.
- Author: Kathy Keatley Garvey
And some of them are quite attractive.
Take the Stiriini moth, Annaphila astrologa.
We saw our first-ever last March in our pollinator garden. Art Shapiro, distinguished professor of evolution and ecology, UC Davis Department of Evolution and Ecology, and naturalist Greg Kareofelas, an associate at the Bohart Museum of Entomology, identified it as a Annaphila astrologa, a small Noctuid.
"It's a medium-sized genus of attractive day-flying moths,” Shapiro said.
It's a species of owlet moth in the family Noctuidae, first described by William Barnes and James Halliday Mcunnough in 1918. A host plant is whispering bells, Emmenanthe penduliflora, a grassland wildflower native to California, according to calscape.org.
Moths and butterflies share the same order, Lepidoptera, but they don't share much else. Moths usually fly at night, not during the day, and moths are generally dull in coloring, compared to butterflies. Moths also outnumber butterflies. Scientists estimate there are some 160,000 described species of moths in the world, as compared to about 17,500 species of butterflies.
Want to learn more about moths? Attend the Bohart Museum of Entomology's Moth Night, set from 8 p.m. to 11 p.m. on Saturday, Aug. 3. It's all free and family friendly. You can:
- View the moths (and butterflies) in the collection curated by entomologist Jeff Smith.
- Talk to the scientists, including senior museum scientist Steve Heydon of the Bohart Museum; Jeff Smith, curator of the the moth and butterfly specimens; and Bohart associates "Moth Man" John DeBenedictis and Greg Kareofelas.
- Check out the display of silkworm moths and silks curated by Emma Cluff. The silkworm moths are from the Bohart Museum collection and the textiles were donated by Richard Peigler, a biology professor at the University of the Incarnate Word, San Antonio, Texas
- Engage in a family craft activity; "kids will be able to color and string white cocoons and make necklaces or bracelets with them," Cluff says.
- Watch the insects that touch down on the blacklighting display, which involves a hanging white sheet illuminated by a generator-powered ultraviolet (UV) light. This won't occur until darkness falls, usually starting around 9 or 9:30.
- Enjoy a cup of hot chocolate and a cookie. (Carafs from Common Grounds Coffee)
- Hold and photograph Madagascar hissing cockroaches and a stick insects (walking sticks), and get up close to the tarantulas, all in the live "petting zoo." There may even be caterpillars on display, according to Tabatha Yang, education and outreach coordinator. They are 3rd instar Antheraea polyphemus larvae, feeding on oak, from West Sacramento. These Polyphemus moths are members of the family Saturniidae, the giant silk moths.
The Bohart Museum houses a global collection of nearly eight million specimens. Founded in 1946 by Richard M. Bohart (1913-2007), and directed by Lynn Kimsey, UC Davis professor of entomology, it is also the home of the seventh largest insect collection in North America; the California Insect Survey, a storehouse of the insect biodiversity; a live "petting zoo" and a gift shop.
The Bohart Museum's regular hours have changed for the summer season. As of July 3, the insect museum is hosting 30-minute tours starting at 2:30 and 3:30 pm. No reservations are required and all ages are welcome. Admission is free, but donations are always welcomed. The Bohart is open to walk-in visitors Monday through Thursday from 1 to 5 p.m. It is closed from 9 a.m. to noon to walk-in visits (the insect museum conducts many tours and outreach programs during those times). More information on the Bohart Museum is available on the website or by contacting (530) 752-0493 or email bmuseum@ucdavis.edu.
Related Link:
- Moths, Smithsonian Institution
