- Author: Kathy Keatley Garvey
Everyone's talking about the drones.
You know, the unmanned aerial vehicles (UAV). Those flying robots cruising over our heads--some with cameras for journalistic and research purposes and others with "need-to-know" purposes.
But in the entomological world, the word "drone" usually means a male honey bee. Or a fly. A drone fly.
To the untrained eye, the common drone fly (Eristalis tenax) looks somewhat like a honey bee, and flies somewhat like a honey bee. It feeds off pollen and nectar.
But the larva is known as a rattailed maggot and feeds off bacteria in drainage ditches, manure or cess pools, sewers and the like.
Like a worker honey bee, the adult drone fly is a pollinator and is often mistaken for a honey bee. Unlike a honey bee, however, it has one set of wings, large eyes, stubby antennae, and a distinguishing "H" on its abdomen.
Coming soon to a field near you--a drone (flying robot) and a drone fly (flying fly). Neither causes diseases nor sucks blood.
- Author: Kathy Keatley Garvey
Privacy, please!
You're walking by a patch of lavender and Mexican sunflower (Tithonia) and you notice that two Gulf Fritillaries (Agraulis vanillae) are doing what birds 'n' bees 'n butterflies do.
Well, some folks call it "bug porn" and some call it a "two-for" images--two insects in one photo. But in this case, this was a "three-for" image. A honey bee nectaring on the nearby lavender photobombed my image and the mating pair, still attached, clumsily fluttered off in a four-wing attempt. Appropriately enough, they headed over to the pasionflower vine, their host plant
We recall butterfly expert Art Shapiro, distinguished professor of evolution and ecology at the University of California, Davis, telling us several years ago that the showy reddish-orange butterfly is making a comeback in the Sacramento-Davis area. In the early 1970s, it was considered extinct in that area.
“It first appeared in the vicinity of San Diego in the 1870s,” he related in a previous Bug Squad blog. “It spread through Southern California in urban settings and was first recorded in the Bay Area about 1908. It became a persistent breeding resident in the East and South Bay in the 1950s and has been there since.”
Shapiro says it “apparently bred in the Sacramento area and possibly in Davis in the 1960s, becoming extinct in the early 1970s, then recolonizing again throughout the area since 2000.”
One of the Gulf Frit's favorite nectar sources is lantana (genus Lantana, family Verbenaceae.) In our yard they also lean toward the lavender and Tithonia.
There, on appropriate occasions, they like a little privacy.
- Author: Kathy Keatley Garvey
Whether you call them "praying" mantis or "preying" mantis, one thing is for sure: they are difficult to find.
Tucked away in vegetation and as quiet as "the proverbial mouse" (except praying mantids are more quiet than the "proverbial" mice), they are an eye exercise in "Find me!"
As autumn approaches, our little bee garden is nearing the end of its life. The Mexican sunflower (Tithonia) and lavender are fading rapidly. However, honey bees and other pollinators continue to forage, and the mantids are still hungry. The female mantids, mothers to be, need more high-quality food. Ootheca!
We're all accustomed to seeing praying mantids grab their struggling prey with their spiked forelegs and munch away. Usually that movement alerts us to their whereabouts.
But have you ever just searched for mantids in their habitat? See if you can find them in these photos.
Find the praying mantis!
- Author: Kathy Keatley Garvey
This is a a story about a spider and a skipper.
Technically, a banded garden spider (Argiope trifasciata) and a fiery skipper butterfly (Hylephila phyleus, family Hesperiida).
The garden spider lies in wait, its head down, clinging to its real estate, an enormous sticky web. A male skipper flits from Tithonia to Tithonia, sipping nectar. Then the skipper makes a fatal mistake; it tries to pass through the nearly invisible web.
If you combine a very sticky web with a very hungry spider and an inattentive butterfly, the results are not good for the butterfly.
It's over within seconds. The spider bites the skipper, paralyzing it with its powerful venom, and then wraps it for a later meal.
The drama all unfolds in our "bee" garden but today it's a "spider" garden. Predator vs. prey. The spider eats today.
On his website, UC Davis butterfly Art Shapiro, distinguished professor of evolution and ecology, describes the fiery skipper as "California's most urban butterfly, almost limited to places where people mow lawns. Its range extends to Argentina and Chile and it belongs to a large genus which is otherwise entirely Andean. Its North American range may be quite recent. Here in California, the oldest Bay Area record is only from 1937. At any rate, it is multiple-brooded, and appears to experience heavy winter-kill in most places; scarce early in the season, it spreads out from local places where it survived, gradually reoccupying most of its range by midsummer and achieving maximum abundance in September and October.
The fiery skipper "occasionally colonizes upslope to about 3000' in the Gold Country but does not seem to survive the winter; strays have been taken to 7000' and on the East slope," Shapiro says. The butterfly breeds mostly on Bermuda grass (Cynodon dactylon) and "the adults swarm over garden flowers such as lantana, verbena, zinnias, marigolds, buddleia. And in the wild they're quite happy with yellow starthistle."
As for the banded garden spider, BugGuide.net offers this identification: "Pale yellow, carapace has silver hairs, abdomen is striped in silver, yellow, and black...Its legs are spotted."
Yes, they are.
- Author: Kathy Keatley Garvey
Like to learn how to make mead? You know, transform honey into honey wine?
The UC Davis Honey and Pollination Center at the Robert Mondavi Institute and the UC Davis Department of Viticulture and Enology are offering a beginners' introduction to mead making on Friday and Saturday, Nov. 13-14 at the Mondavi Institute on Old Davis Road.
"Explore the rich history of this fascinating fermented beverage from its ancient origins to its recent rebirth in America," teases Amina Harris, director of the Honey and Pollination Center. "Taste and learn styles, ingredient selection and steps to making good mead."
Mead is known as the ancestor of all fermented drinks.
This is a hands-on learning experience. "We have about 35 seats left and we would like to fill every one," Harris said. "So far, folks have enrolled from all over the United States and from Canada and India."
Here's a link to the Honey and Pollination Center's website and registration: http://honey.ucdavis.edu/events/introduction-to-mead-making
Or, if you want to chat with Harris and learn how delicious mead is--it's called "the drink of the gods"--contact her at (530) 754-9301 or email her at aharris@ucdavis.edu.
Honey, will you pour me some mead?