Posts Tagged: Eristalis
No, it's not a honey bee.
But many people think all floral visitors are bees.
It's a fly. A drone fly.
Family: Syrphidae; subfamily Eristalinae; tribe Eristalini; genus, Eristalis. Like all syrphids, it has two wings. The honey bee has four.
In its larval stage, the drone fly is known as a rat-tailed maggot. You'll see it in stagnant water, floating in ditches, ponds and drains. It feeds on stagnant rotting organic material.
We spotted this drone fly last Sunday sipping nectar on our bulbine (Bulbine frutescens). The plant is known as a bulbine, typically meaning a bulbous plant, but Bulbine frutescens has no bulb.
The drone fly, a pollinator, glittered in the late afternoon sun as it headed for the bulbine.
Then came the "drone strike"--on the nectar!
Drone fly nectaring on bulbine. (Photo by Kathy Keatley Garvey)
Sunlight glittering on a drone fly. (Photo by Kathy Keatley Garvey)
Drone fly in flight, heading toward bulbine. (Photo by Kathy Keatley Garvey)
You may have noticed this little floral visitor in your garden.
It might appear to be a bee, a common mistake to the untrained eye or those who think that all floral visitors are bees.
But it's a fly, and flies are pollinators, too!
This fly, from the genus Eristalis, family Syrphidae (hover flies), order Diptera, is probably Eristalis stipator, says fly expert Martin Hauser, senior insect biosystematist with the Plant Pest Diagnostics Branch, California Department of Food and Agriculture.
In its larval form, Eristalis, found in aquatic habitats, is known as a rat-tailed maggot, due to its appendage that resembles a snorkel.
Next time you see this little fly on a flower, you can tell your friends "In its larval stage, it's a rat-tailed maggot."
As they widen their eyes and raise their eyebrows, you can add: "But in its adult stage, it's a pollinator."
Close-up of a fly, genus Eristalis, on a flower. (Photo by Kathy Keatley Garvey)
Flies are pollinators, too! This little Eristalis is nectaring a zinnia. (Photo by Kathy Keatley Garvey)
Side view of an Eristalis. (Photo by Kathy Keatley Garvey)