- Author: Kathy Keatley Garvey
Hello, Friday Fly Day!
It's time to post an image of syrphid fly, aka hover fly or flower fly.
We took this dorsal view of a syrphid fly in January of 2009.
This syrphid fly, probably as Syrphus opinator, was warming its flight muscles in the Ruth Risdon Storer Garden, part of the 100-acre UC Davis Arboretum and Public Garden. These flies are often mistaken for honey bees.
Interested in flower flies and their biological control roles? You'll want to read entomologist Robert Bugg's piece on "Flower Flies (Syrphidae) and Other Biological Control Agents for Aphids in Vegetable Crops" (Publication 8285, May 2008, University of California, Division of Agriculture and Natural Resources.) Bugg, who holds a doctorate in entomology from UC Davis, and his four co-authors illustrated the 25-page research article with photos that will help you recognize many of the syrphids.
At the time Bugg was a senior analyst, agricutural ecology, UC Sustainable Agriculture Research and Education Program, UC Davis. Perfect name for an entomologist, don't you think?
Happy Friday Fly Day!
![A syrphid fly, probably a Syrphus opinator, warms its flight muscles in the Ruth Risdon Storer Garden, part of the UC Davis Arboretum and Public Garden. (Photo by Kathy Keatley Garvey) A syrphid fly, probably a Syrphus opinator, warms its flight muscles in the Ruth Risdon Storer Garden, part of the UC Davis Arboretum and Public Garden. (Photo by Kathy Keatley Garvey)](https://ucanr.edu/blogs/bugsquad/blogfiles/94553.jpg)
- Author: Kathy Keatley Garvey
It's often mistaken for a honey bee.
It's not a honey bee. It's a hover fly or flower fly.
And this one, hovering around the plants last Saturday in the Storer Gardens at the University of California, Davis, looked like a Syrphus opinator to me.
So I asked UC Davis entomologist Robert "Bob" Bugg, who specializes in flower flies (Syrphidae), what it is.
"If I have to be an opinator, I'd opine that you're right," he quipped.
Bugg, who received his doctorate in entomology at UC Davis, does research on the biological control of insect pests, cover crops, and restoration ecology.
If you want to learn more about flower flies, read Dr. Bugg's "Flower Flies (Syrphidae) and Other Biological Control Agents for Aphids in Vegetable Crops" (Publication 8285, May 2008, University of California, Division of Agriculture and Natural Resources.)
![A hover fly or flower fly, Syrphus opinator, rests on a stem in the Storer Gardens, UC Davis. You'll be seeing more of these hover flies as the weather warms. This photo was taken Saturday, Jan. 24. (Photo by Kathy Keatley Garvey) A hover fly or flower fly, Syrphus opinator, rests on a stem in the Storer Gardens, UC Davis. You'll be seeing more of these hover flies as the weather warms. This photo was taken Saturday, Jan. 24. (Photo by Kathy Keatley Garvey)](https://ucanr.edu/blogs/bugsquad/blogfiles/1249.jpg)
![HEAD OF HOVER FLY--This close-up photo shows the head of the hover fly, Syrphus opinator. The insect is often mistaken for a honey bee. (Photo by Kathy Keatley Garvey) HEAD OF HOVER FLY--This close-up photo shows the head of the hover fly, Syrphus opinator. The insect is often mistaken for a honey bee. (Photo by Kathy Keatley Garvey)](https://ucanr.edu/blogs/bugsquad/blogfiles/1250.jpg)