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

Posts Tagged: Eristalis tenax

About Those Drones,,,

A drone fly, Eristalis tenax, foraging on a Mexican sunflower (Tithonia). (Photo by 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...

A drone fly, Eristalis tenax, foraging on a Mexican sunflower (Tithonia). (Photo by Kathy Keatley Garvey)
A drone fly, Eristalis tenax, foraging on a Mexican sunflower (Tithonia). (Photo by Kathy Keatley Garvey)

A drone fly, Eristalis tenax, foraging on a Mexican sunflower (Tithonia). (Photo by Kathy Keatley Garvey)

Note the distinguishable
Note the distinguishable "H" on the abdomen on the drone fly, Eristalis tenax. (Photo by Kathy Keatley Garvey)

Note the distinguishable "H" on the abdomen on the drone fly, Eristalis tenax. (Photo by Kathy Keatley Garvey)

Close-up of a drone fly feeding. (Photo by Kathy Keatley Garvey)
Close-up of a drone fly feeding. (Photo by Kathy Keatley Garvey)

Close-up of a drone fly feeding. (Photo by Kathy Keatley Garvey)

Posted on Wednesday, October 14, 2015 at 7:29 PM

Drone Acrobatics

A drone fly, aka hover fly and syrphid fly, engaging in a little acrobatics  over an Iceland poppy. (Photo by Kathy Keatley Garvey)

The drone fly, aka European hover fly, aka syrphid fly, doesn't get as much press as the other drone, the unmanned aircraft. But the drone fly (Eristalis tenax), about the size of a honey bee and often mistaken for a honey bee, makes for great in-flight...

A drone fly, aka hover fly and syrphid fly, engaging in a little acrobatics  over an Iceland poppy. (Photo by Kathy Keatley Garvey)
A drone fly, aka hover fly and syrphid fly, engaging in a little acrobatics over an Iceland poppy. (Photo by Kathy Keatley Garvey)

A drone fly, aka hover fly and syrphid fly, engaging in a little acrobatics over an Iceland poppy. (Photo by Kathy Keatley Garvey)

Hover fly heading for an  Iceland poppy. (Photo by Kathy Keatley Garvey)
Hover fly heading for an Iceland poppy. (Photo by Kathy Keatley Garvey)

Hover fly heading for an Iceland poppy. (Photo by Kathy Keatley Garvey)

This photo shows why drone flies are pollinators. Check out the pollen. (Photo by Kathy Keatley Garvey)
This photo shows why drone flies are pollinators. Check out the pollen. (Photo by Kathy Keatley Garvey)

This photo shows why drone flies are pollinators. Check out the pollen. (Photo by Kathy Keatley Garvey)

Posted on Tuesday, November 25, 2014 at 10:09 PM

A Fly Is a Fly Is a Fly

Drone fly, Eristalis tenax, sipping nectar from a Mexican sunflower, Tithonia. (Photo by Kathy Keatley Garvey)

A bee is a bee is a bee is a bee. 'Cept when it's a fly. Lately we've been seeing lots of images on social media (including Facebook and Twitter), news media websites, and stock photo sites of "honey bees."  But they're actually...

Drone fly, Eristalis tenax, sipping nectar from a Mexican sunflower, Tithonia. (Photo by Kathy Keatley Garvey)
Drone fly, Eristalis tenax, sipping nectar from a Mexican sunflower, Tithonia. (Photo by Kathy Keatley Garvey)

Drone fly, Eristalis tenax, sipping nectar from a Mexican sunflower, Tithonia. (Photo by Kathy Keatley Garvey)

The
The "H" is easily seen on the drone fly. (Photo by Kathy Keatley Garvey)

The "H" is easily seen on the drone fly. (Photo by Kathy Keatley Garvey)

Drone fly heads for another blossom. (Photo by Kathy Keatley Garvey)
Drone fly heads for another blossom. (Photo by Kathy Keatley Garvey)

Drone fly heads for another blossom. (Photo by Kathy Keatley Garvey)

Posted on Monday, October 20, 2014 at 9:03 PM

Sparkle and Shine!

A drone fly heads for a Sparkle and Shine blossom. (Photo by Kathy Keatley Garvey)

Poet Gertrude Stein, who coined "A rose is a rose is a rose," probably would have liked it. Julia Child, maybe not. We purchased a "Sparkle and Shine" yellow rose, related to the Julia Child Rose, last May at the rose sale sponsored by the California...

A drone fly heads for a Sparkle and Shine blossom. (Photo by Kathy Keatley Garvey)
A drone fly heads for a Sparkle and Shine blossom. (Photo by Kathy Keatley Garvey)

A drone fly heads for a Sparkle and Shine blossom. (Photo by Kathy Keatley Garvey)

A drone fly prepares for its descent. (Photo by Kathy Keatley Garvey)
A drone fly prepares for its descent. (Photo by Kathy Keatley Garvey)

A drone fly prepares for its descent. (Photo by Kathy Keatley Garvey)

Heading out, a drone fly pauses before take-off. (Photo by Kathy Keatley Garvey)
Heading out, a drone fly pauses before take-off. (Photo by Kathy Keatley Garvey)

Heading out, a drone fly pauses before take-off.

Posted on Friday, October 25, 2013 at 10:00 PM

The Imposter

Drone Fly

"If it looks like a duck, quacks like a duck, and walks like a duck, it's probably a duck," or so the saying goes. But if it looks like a honey bee, moves around on blossoms like a honey bee, and feeds on nectar and pollen like a honey bee, it may not...

Drone Fly
Drone Fly

DRONE FLY is often mistaken for a honey bee. This drone fly was nectaring a pincushion flower (Seabiosa columbaria) Feb. 5 in Tomales. (Photo by Kathy Keatley Garvey)

Honey Bee
Honey Bee

WILL THE REAL honey bee stand up? This photo shows a honey bee nectaring sedum. The drone fly (top photo) is often mistaken for a honey bee. (Photo by Kathy Keatley Garvey)

Posted on Wednesday, February 9, 2011 at 8:18 PM

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