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

Posts Tagged: crab spider

Not a Good Day for a Flower Fly

Crab spider nails a flower fly in the Haagen-Dazs Honey Bee Haven. (Photo by Kathy Keatley Garvey)

It was not a good day for a flower fly.A flower fly, aka syrphid fly, dropped down in a patch of pink roses at the Häagen-Dazs Honey Bee Haven at UC Davis today to sip nectar. It was a pink-rose kind of day. Not for the flower fly, though. A crab...

Crab spider nails a flower fly in the Haagen-Dazs Honey Bee Haven. (Photo by Kathy Keatley Garvey)
Crab spider nails a flower fly in the Haagen-Dazs Honey Bee Haven. (Photo by Kathy Keatley Garvey)

Crab spider nails a flower fly in the Haagen-Dazs Honey Bee Haven. (Photo by Kathy Keatley Garvey)

Crab spider loses its prey and heads down a stem. (Photo by Kathy Keatley Garvey)
Crab spider loses its prey and heads down a stem. (Photo by Kathy Keatley Garvey)

Crab spider loses its prey and heads down a stem. (Photo by Kathy Keatley Garvey)

Posted on Friday, May 27, 2011 at 8:44 PM

The Ambush

Crab Spider

We can learn a lot from insects, especially when a predator ambushes its prey.An ambush, as defined by Wikipedia "is a long-established military tactic in which the aggressors (the ambushing force) use concealment to attack a passing enemy."The crab...

Crab Spider
Crab Spider

CUNNING CRAB SPIDER lies in wait near the tip of a lavender blossom. This photo was taken at 6:30 in the morning pending the arrival of visiting bees, hover flies and other insects. (Photo by Kathy Keatley Garvey)

Gotcha!
Gotcha!

GOTCHA--This hungry crab spider, hidden in lavender blossoms, nailed an early lunch, a stink bug. (Photo by Kathy Keatley Garvey)

Posted on Monday, July 5, 2010 at 7:04 PM
Tags: crab spider (14), lavender (28), Thomisdae (1)

Crab Spider Nails a Fly

The Encounter

The crab spider didn't go away hungry.Camouflaged in the petals of a sedum, the cunning predator waits patiently for its prey.An unsuspecting blowfly lands inches from the crab spider, unaware of its presence, and crawls toward it.Wham! The crab spider...

The Encounter
The Encounter

THE ENCOUNTER--An unsuspecting blowfly crawls along the top of the sedum, unaware of the crab spider stalking it. (Photo by Kathy Keatley Garvey)

Ambush
Ambush

THE AMBUSH--The crab spider grabs the blowfly with its powerful legs. (Photo by Kathy Keatley Garvey)

Paralyzing Bite
Paralyzing Bite

PARALYZING BITE and it's all over for the blowfly. (Photo by Kathy Keatley Garvey)

Better Grip
Better Grip

BETTER GRIP--The crab spider moves the blowfly around, like food on a dinner plate. (Photo by Kathy Keatley Garvey)

Dinner
Dinner

DINNER--The crab spider didn't go away hungry. (Photo by Kathy Keatley Garvey)

Posted on Thursday, May 27, 2010 at 9:14 PM
Tags: blowfly (1), crab spider (14), sedum (7)

The Hunter and the Hunted

Spider and the Bee

The crab spider is a clever and skillful hunter. Last Sunday we spotted a camouflaged crab spider (family Thomisidae) lying flat on a sedum. The spider's pink and white abdomen blended so well into the pink and white blossoms that you couldn't...

Spider and the Bee
Spider and the Bee

CRAB SPIDER, blending into the sedum, eyes a foraging honey bee. (Photo by Kathy Keatley Garvey)

Dinner?
Dinner?

DINNER? The spider could easily have grabbed the honey bee, but didn't. (Photo by Kathy Keatley Garvey)

Spider Legs
Spider Legs

LOOKING like an aircraft, the crab spider moves backward. (Photo by Kathy Keatley Garvey)

Over and Out
Over and Out

CRAB SPIDER heads for another area. (Photo by Kathy Keatley Garvey)

Posted on Tuesday, May 18, 2010 at 10:08 PM
Tags: crab spider (14), honey bee (196), sedum (7), Thomisidae (2)

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