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

Posts Tagged: Robbin Thorp

Know Your Native Bees: Here's How!

Female sweat bee, Svastra obliqua expurgate, on purple coneflower, Echinacea purpurea. (Photo by Kathy Keatley Garvey)

Do you know your native bees? Can you distinguish a sweat bee from a leafcutting bee from a cuckoo bee from a mining bee? No sweat? Or, are you...ahem...sweating the answer?  You can learn more about native bees at a special presentation on...

Posted on Monday, August 22, 2016 at 6:48 PM

Drama in the Pollinator Patch

A pollen-packing female longhorned bee, probably Melissodes agilis (as identified by Robbin Thorp, emeritus professor of entomology at UC Davis) wants the same flower that the male monarch has claimed. This is a Mexican sunflower, genus Tithonia. (Photo by Kathy Keatley Garvey)

So here's this newly eclosed male monarch trying to sip a little nectar from a Mexican sunflower (Tithonia). A female longhorned bee, probably Melissodes agilis, seeks to claim it. There's no such thing as sharing, especially when nectar is at stake and...

Posted on Wednesday, August 3, 2016 at 4:53 PM

What's Better than Sighting a Bumble Bee?

A newly emerged yellow-faced bumble bee queen, Bombus vosnesenskii, eyes the photographer as it forages on blanket flower (Gaillardia). (Photo by Kathy Keatley Garvey)

What's better than sighting a yellow-faced bumble bee, Bombus vosnesenskii? Well, a newly emerged Bombus vosnesenskii queen. On the last day of June, we spotted this fresh queen-looking foraging on our blanket flower (Gaillardia). Her jet-black color,...

That Cuddly Teddy Bear Bee

A male Valley carpenter bee, Xylocopa varipuncta, sipping nectar from a broadleaf milkweed, Asclepias speciosa. (Photo by Kathy Keatley Garvey)

Oh, that cuddly teddy bear. The male Valley carpenter bee, Xylocopa varipuncta, also known as "the teddy bear bee," comes around occasionally to nectar our broadleaf milkweed, Asclepias speciosa, in our pollinator garden. The milkweed is the...

Posted on Thursday, June 16, 2016 at 4:58 PM

Bed and Breakfast for a Bumble Bee

Male black-faced bumble bee, Bombus californicus, resting on a blanket flower, Gaillardia. (Photo by Kathy Keatley Garvey)

We just met a male black-faced bumble bee, Bombus californicus. It was early morning and he was resting on a blanket flower (Gaillardia), a brilliant member of the sunflower family. When you're a bee, a blanket flower offers both bed and...

Posted on Wednesday, June 15, 2016 at 6:37 PM

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