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

Posts Tagged: Eristalis tenax

Musical Flowers: Jockeying for Position

A black syrphid fly aims for the same Mexican sunflower, occupied by another syprhid fly. (Photo by Kathy Keatley Garvey)

You've heard of "musical chairs," that anxiety-driven elimination game involving chairs, music and players.  When the music stops and a chair is eliminated, the players race for the remaining seats. No one wants to be the first loser. Well,...

Posted on Thursday, October 19, 2017 at 5:00 PM

Do You Know Me?

A drone fly, Eristalis tenax, sips nectar from a Mexican sunflower, Tithonia. (Photo by Kathy Keatley Garvey)

The drone fly is an identity thief. It's often mistaken for a honey bee. Hey, isn't every floral visitor a bee? No, not by a long shot. One's a fly and one's a bee. That came to mind last weekend when we saw a large  number of honey bees (Apis...

Posted on Friday, October 28, 2016 at 5:00 PM

A Bee Is a Bee Is a Bee,,,

A drone fly, Eristalis tenax, heading toward a Cosmos. (Photo by Kathy Keatley Garvey)

If poet Gertrude Stein were alive today, she might say "A bee is a bee is a bee" instead of "a rose is a rose is a rose." Or, she might say "A fly is a fly is a fly." Oh, my. That's because major corporations, news media and...

Posted on Monday, March 14, 2016 at 5:35 PM

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...

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...

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

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