Drone Fly: Good Pollinator

Nov 11, 2010

Yarrow, yarrow, yarrow.

Drone fly, drone fly, drone fly.

This little insect is often mistaken for a honey bee.  In the adult stage, both the drone fly and honey bee nectar flowers. However, the drone fly is a syrphid fly (family Syrphidae, subfamily Eristalinae, tribe Eristalini, genus, Eristalis). Like all syrphids, it has two wings. The honey bee has four.

Other distinct differences tell you it's a fly, not a bee. It's amazing, though, how often stock photos proclaim "honey bee" when the insect is actually a drone fly.

In its larval stage, the drone fly is known as a rat-tailed maggot. You'll see it in stagnant water, such as in ditches, ponds and drains. It feeds on stagnant rotting organic material.

We spotted this drone fly sipping nectar on a brilliant yellow yarrow (Achillea millefolium). If you look closely, you'll see yellow pollen clinging to its abdomen.


Flies, too, are pollinators!


By Kathy Keatley Garvey
Author - Communications specialist

Attached Images:

DRONE FLY (Eristalis tenax) crawls on yarrow. (Photo by Kathy Keatley Garvey)

Drone Fly

SIDE VIEW of a drone fly, Eristalis tenax. The insect is often mistaken for a honey bee. (Photo by Kathy Keatley Garvey)

Side View

LIKE A HONEY BEE, the drone fly (Eristalis tenax)  pollinates flowers. Check out the yarrow pollen clinging to its abdomen. (Photo by Kathy Keatley Garvey)

Yellow Pollen