A bright yellow flower fly hovered over the marigolds in the afternoon sun.

A flower-fly hovered above the garden daisies, its tiny body vibrating as it inspected each blossom.

Researchers studying rainforest pollinators were thrilled when they discovered Paul Allen's flower fly hovering over a patch of heliconia.

During a field trip in Costa Rica, I finally spotted Bill Gates' flower fly, the species Eristalis gatesi, hovering over a red Heliconia.