Hovering and hoovering

I photographed this hoverfly in our garden today. Google Lens tells me it's a species of the genus Melangyna. And this webpage tells me that:

Hoverfly larvae, armed with insatiable appetites, target garden pests like Aphids and Thrips. They lay their eggs near these colonies, and when hatched, the larvae embark on a relentless quest to devour these garden nuisances, protecting your plants with ruthless efficiency.