Wim van den Heever / Little bee eaters (Merops pusillus) two, with one landing on branch with a fly in its beak. Okavango Delta, Botswana

Laurent Geslin / Common bee fly (Bombylius major) on bark in urban park, Paris, France

Laurent Geslin / Common bee fly (Bombylius major) at rest with graffiti in the background, Paris, France.

Andy Sands / Common Bee Fly (Bombylius major) at rest on bramble, Captive, UK April

Andy Sands / Common Bee Fly (Bombylius major) at rest on bramble, Captive, UK April

Phil Savoie / Root maggot fly (Leucophora sp.) kleptoparasitic on bees including mining bees of the genus Andrena, waiting outside mining bee nest burrow, Monmouthshire, Wales, UK. April.

Heather Angel / Common bee fly (Bombylius major) hovering whilst nectaring on Honesty (Lunaria annua), proboscis covered with pollen. Nature reserve, Surrey, England, UK. March.

Nigel Cattlin / Drone fly (Eristalis tenax), a bee mimic, on leaf. England, UK.

Nigel Cattlin / Fly orchid (Ophrys insectifera) flower. Hampshire, England, UK.

Nigel Cattlin / Fly orchid (Ophrys insectifera) flowers. Hampshire, England, UK.

Heather Angel / Common bee fly (Bombylius major) nectaring on Goat willow (Salix caprea) catkin. Surrey, England, UK. March.

Heather Angel / Large bee fly (Bombylius major) feeding on Primrose (Primula vulgaris). England, UK. March.