- Author: Kathy Keatley Garvey
It's a damsel, but not in distress.
It's a Familiar Bluett, but it's not all that familiar--unless you study Odonata.
Lately we've been seeing scores of damseflies zigzagging in our pollinator garden in Vacaville, Calif. Seven showed up at one time on our soon-to-bloom Mexican sunflower (genus Tithonia). They found some prey and decided to stay...for awhile.
Greg Karofelas, an associate at the Bohart Museum of Entomology, UC Davis, identified the damselflies as the Familiar Bluett, (Enallagma civile), family Coenagrionidae. They are native to much of the United States and southern Canada.
"The name fits time of the year, and locality, males are light blue, females dark," Karofelas commented. "Enallagma is a genus with a bunch of very similar looking damselflies--they can be hard to identify, even under 10X magnification, in hand."
This species of damselfly belongs to the order Odonata (dragonflies and damselfies), suborder Zygoptera (damselflies), family Coenagrionidae (narrow-winged damselflies);genus Enallagma (American Bluets), and species
civile (Familiar Bluet).
Wikipedia describes damselflies as "an ancient group," insects that have existed since at least the lower Permian. "All damselflies are predatory; both nymphs and adults eat other insects. The nymphs are aquatic, with different species living in a variety of freshwater habitats including acid bogs, ponds, lakes and rivers."
Watch for them! They're the insect version of the flying needles, and their fabric is our landscapes./span>
- Author: Kathy Keatley Garvey
What a night--both inside and outside the Bohart Museum of Entomology at the University of California, Davis on Saturday, July 21.
While moths and other insects fluttered to the blacklighting display, visitors flocked inside the museum to see the specimens, and engage one-on-one with scientists.
The UC Davis event was the first in a series of summer weekend programs. In fact, "Moth Night" is the only Bohart Museum public event held at night; it takes place annually in conjunction with National Moth Week, a celebration of the beauty, life cycles and habitats of moths. (See yesterday's Bug Squad blog on blacklighting and the moth families recorded by "Moth Man" John DeBenedictis.)
Inside the Bohart Museum last Saturday, retired entomologist Norm Smith, who received his doctorate at UC Davis studying with major professor Richard Bohart (for whom the museum is named) fielded questions about moths and field collecting, as did senior museum scientist Steve Heydon, and Bohart Museum associates Jeff Smith (who curates the butterfly and moth section) of Rocklin; Greg Kareofelas of Davis, naturalist and insect photographer; entomologist Fran Keller, assistant professor at Folsom Lake College (she holds a doctorate in entomology from UC Davis) and entomologist and college student Noah Crockette of Sacramento.
Among the specimen attractions was the white witch moth (Thysania agrippina), which at 11 inches, holds the record for largest wingspan in insects. The caterpillar of this moth can reach 7 inches long. The species is found in Mexico and Central and South America.
Moths are among the most diverse and successful organisms on earth. Scientists estimate there are 150,000 to more than 500,000 moth species. Most are nocturnal.
Visitors enjoyed cookies and hot chocolate. Common Grounds, a Davis coffee shop, provided the large containers of hot water, said Tabatha Yang, education and outreach coordinator. The family craft activity involved decorating wax candles with moth and butterfly replicas.
Meanwhile, Bohart officials are gearing up for the two remaining summer programs, which are free, open to the public, and family friendly:
- "Fire and Ice: Extreme California Insects," set from 1 to 4 p.m., Sunday, Aug. 19.
- "Crafty Insects," set from 1 to 4 p.m., Saturday, Sept. 22.
The Bohart Museum is located in held Room 1124 of the Academic Surge Building, Crocker Lane. Directed by Lynn Kimsey, professor of entomology at UC Davis, the museum 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. In addition to the petting zoo, the museum features a year-around gift shop, which is stocked with 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. It is closed to the public on Fridays, Saturdays and Sundays and on major holidays. Admission is free.