Cooperative Extension San Joaquin County
University of California
Cooperative Extension San Joaquin County

Posts Tagged: yellowjacket

Quit Mimicking Me!

This wasp mimic is actually a fly, genus Ceriana. (Photo by Kathy Keatley Garvey)

Last weekend a little critter made its first-ever appearance in our family bee garden. It was neither a grand entrance nor a grand insect.    "A fly!" I thought, as I looked at its knoblike bristle or arista on the end of each antenna....

This wasp mimic is actually a fly, genus Ceriana. (Photo by Kathy Keatley Garvey)
This wasp mimic is actually a fly, genus Ceriana. (Photo by Kathy Keatley Garvey)

This wasp mimic is actually a fly, genus Ceriana. (Photo by Kathy Keatley Garvey)

Davis photographer Allan Jones captured this fantastic  image of the wasp mimic, Ceriana. (Photo by Kathy Keatley Garvey)
Davis photographer Allan Jones captured this fantastic image of the wasp mimic, Ceriana. (Photo by Kathy Keatley Garvey)

Davis photographer Allan Jones captured this fantastic image of the wasp mimic, Ceriana. (Photo by Kathy Keatley Garvey)

This is a Western yellowjacket, Vespula pensylvanic, which looks a lot like the wasp mimic, genus Ceriana. (Photo by Kathy Keatley Garvey)
This is a Western yellowjacket, Vespula pensylvanic, which looks a lot like the wasp mimic, genus Ceriana. (Photo by Kathy Keatley Garvey)

This is a Western yellowjacket, Vespula pensylvanic, which looks a lot like the wasp mimic, genus Ceriana. (Photo by Kathy Keatley Garvey)

This is a European paper wasp, Polistes dominula. A syrphid fly mimics this. (Photo by Kathy Keatley Garvey)
This is a European paper wasp, Polistes dominula. A syrphid fly mimics this. (Photo by Kathy Keatley Garvey)

This is a European paper wasp, Polistes dominula. A syrphid fly mimics this. (Photo by Kathy Keatley Garvey)

Posted on Monday, September 8, 2014 at 6:07 PM

Not What You Want in Your Drink

Yellowjackets are attracted to this plastic container. (Photo by Kathy Keatley Garvey)

On an outing last Saturday to a Marin County restaurant, we spotted half-filled glasses lining a railing near the picnic tables. As the guests dined on seafood, yellowjackets dined on bits of protein left behind. The half-filled glasses were there to...

Yellowjackets are attracted to this plastic container. (Photo by Kathy Keatley Garvey)
Yellowjackets are attracted to this plastic container. (Photo by Kathy Keatley Garvey)

Yellowjackets are attracted to this plastic container. (Photo by Kathy Keatley Garvey)

Close-up of yellow jackets. They soon climbed out and flew away. (Photo by Kathy Keatley Garvey)
Close-up of yellow jackets. They soon climbed out and flew away. (Photo by Kathy Keatley Garvey)

Close-up of yellow jackets. They soon climbed out and flew away. (Photo by Kathy Keatley Garvey)

Posted on Wednesday, August 14, 2013 at 8:00 PM

Kissin' Cousins

Male yellowjacket heads toward a honey bee. (Photo by Kathy Keatley Garvey)

What's that? A honey bee and a male yellowjacket on the same blossom? That's exactly what we saw Nov. 14 at the Häagen-Dazs Honey Bee Haven, located next to the Harry H. Laidlaw Jr. Honey Bee Research Facility on Bee Biology Road,...

Male yellowjacket heads toward a honey bee. (Photo by Kathy Keatley Garvey)
Male yellowjacket heads toward a honey bee. (Photo by Kathy Keatley Garvey)

Male yellowjacket heads toward a honey bee. (Photo by Kathy Keatley Garvey)

Male yellowjacket checks out the honey bee. (Photo by Kathy Keatley Garvey)
Male yellowjacket checks out the honey bee. (Photo by Kathy Keatley Garvey)

Male yellowjacket checks out the honey bee. (Photo by Kathy Keatley Garvey)

Honey bee continues to forage, while the male yellowjacket crawls away. (Photo by Kathy Keatley Garvey)
Honey bee continues to forage, while the male yellowjacket crawls away. (Photo by Kathy Keatley Garvey)

Honey bee continues to forage, while male yellowjacket crawls away. (Photo by Kathy Keatley Garvey)

Posted on Friday, November 30, 2012 at 10:27 PM

Seeing Yellow (and Black)

Western yellowjacket

So you're planning a big barbecue, a garden party or a wedding reception. You want to make sure that Mr. and Mrs. Yellowjacket and all their offspring--plus nephews, nieces, uncles, aunts, cousins and assorted other relatives--aren't on the invite...

Western yellowjacket
Western yellowjacket

PESTY YELLOWJACKET--A Western yellowjacket (Vespula pensylvanica) sips water from a watering device at the Harry H. Laidlaw Jr. Honey Bee Research Facility at the University of California, Davis. (Photo by Kathy Keatley Garvey)

Posted on Tuesday, October 5, 2010 at 6:34 PM

Faster Than a Speeding...

Golden Bullet

Faster than a speeding bullet... As soon as UC Davis bee breeder-geneticist Susan Cobey opened a beehive and removed a chunk of honeycomb to show visitors,  here came the speeding bullet.  A fast camera shutter caught what the eye...

Golden Bullet
Golden Bullet

GOLDEN BULLET--really a queen yellowjacket--(see far left) heads for a honeycomb held by bee breeder-geneticist Susan Cobey, manager of the Harry H. Laidlaw Jr. Honey Bee Research Facility at UC Davis. Beekeepers know that when they open a hive, a predatory yellowjacket with a voracious appetite for honey and bees may be in the vicinity. (Photo by Kathy Keatley Garvey)

Thirsty Yellowjacket
Thirsty Yellowjacket

THIRSTY YELLOWJACKET drinks from a water bowl at the Harry H. Laidlaw Jr. Honey Bee Research, UC Davis. Yellowjackets use water to create their paper comblike nests, a mixture of saliva and wood pulp. (Photo by Kathy Keatley Garvey)

Posted on Friday, June 12, 2009 at 4:54 PM
Tags: Eric Mussen (245), Susan Cobey (83), UC Davis (172), yellowjacket (5)
 
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