Sometimes called flower flies, or syrphid flies, make up the insect family Syrphidae. As their common name suggests, they are often seen hovering or nectaring at flowers; the adults of many species feed mainly on nectar and pollen, while the larvae (maggots) eat a wide range of foods. In some species, the larvae are saprotrophs, eating decaying plant and animal matter in the soil or in ponds and streams. In other species, the larvae are insectivores and prey on aphids, thrips, and other plant-sucking insects.
Hoverflies visit flowers to suck nectar. Grains of pollen stick to their bodies and are dispersed to other flowers, therefore pollinating them.
hoverflyhoverfliesflower flysyrphid flysyrphidaenectarpollensaprotrophsinsectivoresaphidsthripsGarry Watts, from
My Backyard by Carrol