Images by three UC Davis-affiliated photographers will be among those displayed at the international Insect Salon photography competition at the Entomological Society of America's meeting, Nov. 11-14 in Vancouver, B.C.
The insect photographers: Alexander Nguyen, who submitted an image of a syprhid fly--a wasp mimic, Ceriana tridens, ovipositing in the fissures of a tree; Allan Jones, a photo of a female leafcutter bee, Megachile fidelis, carrying a leaf petal back to her nest; and Kathy Keatley Garvey, an image of a pollen-drenched honey bee, Apis mellifera, nectaring on mustard.
The images were among 122 accepted for the Insect Salon from a total of 333 images submitted by 84 photographers from 22 countries (a 37 percent acceptance rate).
Nguyen, who received his bachelor of science degree in entomology from UC Davis, is a biologist for the Solano County Department of Agriculture. He captured the image of the wasp mimic at Spanish Flat on the west bank of Lake Berryessa, Napa County. "After larvae hatch they will feed on sap from the tree," said Nguyen, who maintains a photography website at https://alexandernguyen.smugmug.com. Senior insect biosystematist Martin Hauser of the California Department of Food and Agriculture identified the syrphid.
Jones, who holds bachelor's degrees in English and German and a master's degree in English from UC Davis, is a California Department of Agriculture (CDFA) retiree who now resides in Davis. He captured his winning image of the leafcutter bee in the Häagen-Dazs Honey Bee Haven, a half-acre bee garden, operated by the UC Davis Department of Entomology and Nematology and located on Bee Biology Road, west of the central campus. It shows the bee carrying a Clarkia petal back to her nest.
Kathy Keatley Garvey
Garvey, who holds degrees in communications and journalism from Washington State University, Pullman, is a communications specialist with the Department of Entomology and Nematology. She captured her winning image of the pollen-packing honey bee in a Vacaville (Calif.) mustard patch. In her leisure time, Garvey writes a Bug Squad blog, about insects and entomologists, on the UC Agriculture and Natural Resources website, a blog she has written every night, Monday through Friday, for the past 10 years.
Joseph Virbickis of the Peoria (Ill.) Camera Club, coordinator of Insect Salon, announced the medal winners, which included "best of show" and "best of Entomological Society of America photographers" and "best of Peoira Camera Club photographers":
- Medal, Best of Show: Soon Seng Leong of Malaysia, for his image, "Share Together 084."
- Medal, Best of ESA Members: Thomas Myers of Lexington, Ky., for his "Saddleback Caterpillars"
- Medal, Best by Peoria Camera Club: Carl Close of Hopewell, Ill., "Hornworm Caterpillar"
- Medal, Best Storytelling: Say Boon Foo of Malyasia, for "Ant 3"
- Medal, Most Unusual, Jenni Horsnell of Australia for "Wolf Spider with Young"
The winning entries will be displayed both on the Peoria Camera Club website and on screens at the annual meeting of ESA, a global organization of some 7000 members that serves the professional and scientific needs of entomologists and individuals in related disciplines. This year's theme is "Sharing Insect Science Globally."
All photographers are invited to submit up to four entries in the annual Insect Salon competition, Virbickis said. This is a Photographic Society of America-sanctioned nature competition.
Scorpions--to fear or to revere?
The Bohart Museum of Entomology's open house last Sunday drew visitors of all ages who marveled at the scorpions glowing under ultraviolet light.
UC Davis entomology major Alexander Nguyen flashed a UV light on the critters as his audience watched in amazement.
Most--but not all--of the world's scorpions glow under ultraviolet light, says Lynn Kimsey, director of the Bohart Museum, which houses more than seven million insect specimens.
Scorpions are not insects, but arachnids, the same as spiders. Ranging in size from 9 mm to 21 mm, scorpions have eight legs (arachnid alert!) and grasping claws that help conquer their prey. But it's their venom that kills. And all scorpions possess venom.
UC Davis entomologist Bruce Hammock and his lab made the news back in 2003 when they published a study that showed that scorpions produce two venoms: a pre-venom to deter predators and immobilize small prey, and then the good stuff, the powerful venom that's meant to kill.
It's like saving the best for last or waiting for the venom glands to pump and reload, so to speak.
So, why do they glow?
Scientists believe it's because of the fluorescent material found in the scorpion's hard outer covering.
"The fact that they glow serves no physiological function," said Bohart senior museum scientist Steve Heydon. "It's probably a quirk of chemical makeup."
Great quote..."a quirk of chemical makeup."
Most scorpions glow under an ultraviolet light, but now a discovery on Alcatraz Island reveals that a certain species of millipedes will, too.
Forensic entomologist Robert Kimsey of the UC Davis Department of Entomology, who does fly research on Alcatraz, said that bait laced with a non-toxic fluorescent dye to estimate the rat population in February yielded the expected result: the glow of rat urine and feces.
But something else was glowing nearby: millipedes.
Had they consumed some of the rat bait?
No. An experiment at the Bohart Museum of Entomology on the UC Davis campus showed that these millipedes (Xystocheir dissecta (Wood) glow under black lights, just like scorpions.
Lynn Kimsey, director of the Bohart Museum and a professor of entomology at UC Davis, said the species is a relatively abundant species in the Bay Area. “This particular species of millipedes glowed all along, but nobody was paying any attention to it,” she said.
She suspects that the millipedes on Alcatraz Island originated from soil transported over from the nearby Angel Island when “The Rock” was just that—rock with little or no soil.
Meanwhile, if you attend the Bohart Museum's open house from 1 to 4 p.m. on Sunday, June 3 at 1124 Academic Surge, California Drive, you'll see scorpions and millipedes glowing.
And there's something else to draw you in: a special live display of the California dogface butterfly by naturalist/photographer Greg Kareofelas of Davis. If all goes as planned, an adult will emerge from its chrysalis. If this doesn't happen (well, you can't tell a buttterfly when to emerge!) you can watch the life cycle on his PowerPoint presentation, to run continuously throughout the open house.
And, you can ask Kareofelas all about the California dogface butterfly (Zerene eurydice), which, by the way, is close to royalty--it's California's designated state insect.