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Posts Tagged: UC Davis

They Don't Announce Their Arrival or Departure

A female variegated meadowhawk dragonfly, Sympetrum corruptum, perches on a bamboo stake in Vacaville, Calif. (Photo by Kathy Keatley Garvey)

They don't announce their arrival or departure. If you're an insect photographer, or a wanna-be-insect photographer, expect the unexpected and don't go anywhere without your camera. That applies to such simple things as walking out your back door and stepping into your pollinator garden. It was...

A female variegated meadowhawk dragonfly, Sympetrum corruptum, perches on a bamboo stake in Vacaville, Calif. (Photo by Kathy Keatley Garvey)
A female variegated meadowhawk dragonfly, Sympetrum corruptum, perches on a bamboo stake in Vacaville, Calif. (Photo by Kathy Keatley Garvey)

A female variegated meadowhawk dragonfly, Sympetrum corruptum, perches on a bamboo stake in Vacaville, Calif. (Photo by Kathy Keatley Garvey)

In this view, you can see the “bi-colored” Pterostigma on the wing tip and the two black spots on the top of the tip of the abdomen,
In this view, you can see the “bi-colored” Pterostigma on the wing tip and the two black spots on the top of the tip of the abdomen," noted Greg Kareofelas, Bohart Museum of Entomology associate. "This is unique to this species (Sympetrum corruptum)." (Photo by Kathy Keatley Garvey)

In this view, you can see the “bi-colored” Pterostigma on the wing tip and the two black spots on the top of the tip of the abdomen," noted Greg Kareofelas, Bohart Museum of Entomology associate. "This is unique to this species (Sympetrum corruptum)." (Photo by Kathy Keatley Garvey)

A blurred Mexican sunflower (Tithonia) forms a backdrop for the variegated meadowhawk dragonfly, Sympetrum corruptum. (Photo by Kathy Keatley Garvey)
A blurred Mexican sunflower (Tithonia) forms a backdrop for the variegated meadowhawk dragonfly, Sympetrum corruptum. (Photo by Kathy Keatley Garvey)

A blurred Mexican sunflower (Tithonia) forms a backdrop for the variegated meadowhawk dragonfly, Sympetrum corruptum. (Photo by Kathy Keatley Garvey)

A flickering light and backdrop of a Mexican sunflower add to this image of the dragonfly, Sympetrum corruptum. (Photo by Kathy Keatley Garvey)
A flickering light and backdrop of a Mexican sunflower add to this image of the dragonfly, Sympetrum corruptum. (Photo by Kathy Keatley Garvey)

A flickering light and backdrop of a Mexican sunflower add to this image of the dragonfly, Sympetrum corruptum. (Photo by Kathy Keatley Garvey)

Posted on Tuesday, October 16, 2018 at 5:00 PM

Ooh, an Ootheca!

Ms. Mantis, on a redwood stake in a milkweed planter in Vacaville, Calif., is trying to find a place to lay her egg mass, an ootheca. This image was taken Sunday night, Sept. 23. (Photo by Kathy Keatley Garvey)

Hide and seek. She hides 'em and we seek 'em. We've spotted as many as seven adult praying mantids at a time in our little pollinator garden in Vacaville, Calif. but never once have we seen any of them laying eggs. Until now. We know that a praying mantid lays her eggs in an egg mass known as...

Ms. Mantis, on a redwood stake in a milkweed planter in Vacaville, Calif., is trying to find a place to lay her egg mass, an ootheca. This image was taken Sunday night, Sept. 23. (Photo by Kathy Keatley Garvey)
Ms. Mantis, on a redwood stake in a milkweed planter in Vacaville, Calif., is trying to find a place to lay her egg mass, an ootheca. This image was taken Sunday night, Sept. 23. (Photo by Kathy Keatley Garvey)

Ms. Mantis, on a redwood stake in a milkweed planter in Vacaville, Calif., is trying to find a place to lay her egg mass, an ootheca. This image was taken Sunday night, Sept. 23. (Photo by Kathy Keatley Garvey)

This looks like a good spot. This praying mantis, Stagmomantis limbata, is native to North America. (Photo by Kathy Keatley Garvey)
This looks like a good spot. This praying mantis, Stagmomantis limbata, is native to North America. (Photo by Kathy Keatley Garvey)

This looks like a good spot. This praying mantis, Stagmomantis limbata, is native to North America. (Photo by Kathy Keatley Garvey)

Ms. Mantis begins to work. Note the frothy cream-colored substance. (Photo by Kathy Keatley Garvey)
Ms. Mantis begins to work. Note the frothy cream-colored substance. (Photo by Kathy Keatley Garvey)

Ms. Mantis begins to work. Note the frothy cream-colored substance. (Photo by Kathy Keatley Garvey)

Close-up of the process. This Stagmomantis limbata did so in the open. (Photo by Kathy Keatley Garvey)
Close-up of the process. This Stagmomantis limbata did so in the open. (Photo by Kathy Keatley Garvey)

Close-up of the process. This Stagmomantis limbata did so in the open. (Photo by Kathy Keatley Garvey)

At dawn the next morning, we found her still on the stake with her hardening ootheca. (Photo by Kathy Keatley Garvey)
At dawn the next morning, we found her still on the stake with her hardening ootheca. (Photo by Kathy Keatley Garvey)

At dawn the next morning, we found her still on the stake with her hardening ootheca. (Photo by Kathy Keatley Garvey)

Posted on Monday, October 1, 2018 at 4:59 PM
Focus Area Tags: Environment Natural Resources

Ever Seen a Gulf Fritillary Laying an Egg?

Gulf Fritillary Agraulis vanillae), an orangish-reddish butterfly of the family Nymphalidae, lays its eggs on its host plant, Passiflora. They often lay their eggs on the tendrils. (Photo by Kathy Keatley Garvey)

Ever seen a Gulf Fritillary butterfly laying an egg? The Gulf Frit (Agraulis vanillae), an orangish-reddish butterfly of the family Nymphalidae, lays its eggs on its host plant,  Passiflora. When you see its silver-spangled underwings, you may think there are two different butterflies....

Gulf Fritillary Agraulis vanillae), an orangish-reddish butterfly of the family Nymphalidae, lays its eggs on its host plant, Passiflora. They often lay their eggs on the tendrils. (Photo by Kathy Keatley Garvey)
Gulf Fritillary Agraulis vanillae), an orangish-reddish butterfly of the family Nymphalidae, lays its eggs on its host plant, Passiflora. They often lay their eggs on the tendrils. (Photo by Kathy Keatley Garvey)

Gulf Fritillary Agraulis vanillae), an orangish-reddish butterfly of the family Nymphalidae, lays its eggs on its host plant, Passiflora. They often lay their eggs on the tendrils. (Photo by Kathy Keatley Garvey)

Silver-spangled wings of the Gulf Fritillary. (Photo by Kathy Keatley Garvey)
Silver-spangled wings of the Gulf Fritillary. (Photo by Kathy Keatley Garvey)

Silver-spangled wings of the Gulf Fritillary. (Photo by Kathy Keatley Garvey)

Posted on Monday, August 6, 2018 at 5:00 PM
Focus Area Tags: Environment Natural Resources

Remembering the Legendary Entomologist and Toxicologist Dr. John Casida

Distinguished professor John Casida (center) with his former graduate students Sarjeet Gill (left), a distinguished professor at UC Riverside, and Bruce Hammock, a distinguished professor at UC Davis. This image was taken in 2016 at UC Berkeley.

Graduate students and postdoctoral students that the legendary John Casida trained remember him with great fondness, respect and appreciation. He made a difference: a huge difference. Dr. Casida, 88, a world-renowned entomologist and toxicologist at UC Berkeley who died June 30 of a heart attack...

Distinguished professor John Casida (center) with his former graduate students Sarjeet Gill (left), a distinguished professor at UC Riverside, and Bruce Hammock, a distinguished professor at UC Davis. This image was taken in 2016 at UC Berkeley.
Distinguished professor John Casida (center) with his former graduate students Sarjeet Gill (left), a distinguished professor at UC Riverside, and Bruce Hammock, a distinguished professor at UC Davis. This image was taken in 2016 at UC Berkeley.

Distinguished professor John Casida (center) with his former graduate students Sarjeet Gill (left), a distinguished professor at UC Riverside, and Bruce Hammock, a distinguished professor at UC Davis. This image was taken in 2016 at UC Berkeley.

Posted on Thursday, July 26, 2018 at 5:37 PM

Dragonflies En Masse

A wind-swept meadowhawk, Sympetrum corruptum, perches on a fence post after feasting on prey on July 1, 2018 in Vacaville, Calif. This was taken just after sunrise with a 200mm macro lens. (Photo by Kathy Keatley Garvey)

So there they were, literally dozens of dragonflies flying around two separate Vacaville (Calif.) yards, feasting on swirling clouds of prey (gnatlike insects) and then touching down on blades of grass or fence posts. They proved as elusive as a celebrities attempting to avoid a...

A wind-swept meadowhawk, Sympetrum corruptum, perches on a fence post after feasting on prey on July 1, 2018 in Vacaville, Calif. This was taken just after sunrise with a 200mm macro lens. (Photo by Kathy Keatley Garvey)
A wind-swept meadowhawk, Sympetrum corruptum, perches on a fence post after feasting on prey on July 1, 2018 in Vacaville, Calif. This was taken just after sunrise with a 200mm macro lens. (Photo by Kathy Keatley Garvey)

A wind-swept meadowhawk, Sympetrum corruptum, perches on a fence post after feasting on prey on July 1, 2018 in Vacaville, Calif. This was taken just after sunrise with a 200mm macro lens. (Photo by Kathy Keatley Garvey)

This is a closeup of the variegated meadowhawk, Sympetrum corruptum, taken Oct. 10, 2016 in Vacaville, Calif. It's perched on a Mexican sunflower, Tithonia. This was taken in late afternoon with a 70-180mm macro lens. (Photo by Kathy Keatley Garvey)
This is a closeup of the variegated meadowhawk, Sympetrum corruptum, taken Oct. 10, 2016 in Vacaville, Calif. It's perched on a Mexican sunflower, Tithonia. This was taken in late afternoon with a 70-180mm macro lens. (Photo by Kathy Keatley Garvey)

This is a closeup of the variegated meadowhawk, Sympetrum corruptum, taken Oct. 10, 2016 in Vacaville, Calif. It's perched on a Mexican sunflower, Tithonia. This was taken in late afternoon with a 70-180mm macro lens. (Photo by Kathy Keatley Garvey)

Posted on Wednesday, July 11, 2018 at 5:13 PM
Focus Area Tags: Environment Yard & Garden

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