Posts Tagged: metallic sweat bee
There I was, walking across the University of California, Davis, campus to the Environmental Sciences Building for an agricultural communicators' meeting: a notebook in my hand, cell phone in my pocket, and my trusty pocket camera strapped around my neck.
Sometimes it's good not to lug around a 10-pound camera. Not this time, however.
Right inside the soybean planter box, I saw it--an assassin bug spearing what looked like a bee.
This was a predator-prey encounter between the assassin, Zelus renardii, and a bee, which native pollinator specialist Robbin Thorp, emeritus professor of entomology at UC Davis and an instructor of The Bee Course, identified as a male metallic sweat bee, Lasioglossum (Dialictus) sp., possibly L. tegulariforme.
I aimed the tiny camera and grabbed a couple of images before the predator, with prey attached, crawled beneath a soybean leaf.
Assassin bug are predators and don't distinguish between beneficial insects and pests. Still, we like them in our garden because they eat a lot of soft-bodied insect pests like aphids and leafhoppers.
Speaking of eating insects...the UC Davis Honey and Pollination Center is sponsoring a "Bugs and Beer" event on Saturday, Nov. 1 in the Robert Mondavi Institute for Wine and Food Science. It promises to be a cricket-kölsch kind of affair.
Beer expert Charlie Bamforth, Anheuser-Busch Endowed Professor of Malting and Brewing Sciences at UC Davis, will lead a joint tasting with celebrity bug chef David George Gordon, author of "The Eat-a-Bug" cookbook.
Bamford, known as "The Pope of Foam," is an icon around campus and the beer-brewing world. He's considered one of the country's most intriguing professors, noted Amina Harris, director of the Honey and Pollination Center. And David George Gordon--a fellow with three first names? He's been featured in the Wall Street Journal, Time magazine, and the National Georgraphic Kids.
Registration opened Monday (http://www.rmi.ucdavis.edu/events). Tickets are $50, general admission, and $25 for students. And, of course, "Bugs and Beer" is open only to those 21 and over because beer will be served.
We don't know what kind of bugs Gordon will serve, but they probably won't be assassin bugs. Bees, maybe. Specifically, maybe that "Three-Bee Salad?" on his website?
A fast-moving assassin bug spears a male metallic sweat bee. (Photo by Kathy Keatley Garvey)
Assassin bug paralyzes his prey. (Photo by Kathy Keatley Garvey)
The eyes have it.
Look at the compound eyes of an insect. Some are colorful, some are drab. But they are all organs that detect light.
Most insects "have some sight and many possess highly developed visual systems," write UC Davis entomology professors Penny Gullan and Pete Cranston in the fourth edition of their textbook, The Insects: An Outline of Entomology, published by Wiley-Blackwell earlier this year.
"Virtually all adult insects and nymphs have a pair of large, prominent compound eyes, which often cover nearly 360 degrees of visual space," they point out.
If you're studying to be an entomologist--or thinking about entomology as a career--you can learn more about how "the basic components needed for vision are a lens to focus light onto photoreceptors--cells containing light-sensitive molecules--and a nervous system complex enough to process visual information."
If you're photographing insects, you know how quickly they detect movement. Cast your shadow on them and off they go. Move closer and off they go.
Sometimes it's a challenge, but in the end, the eyes have it.
Yellow-Faced Bumble Bee
Metallic Green Sweat Bee