I remember sitting on a bench in my garden when I suddenly noticed this rather unusual little fly on a plant pot. I had never seen one like this before, or since then.
This fly mimics a wasp with its bright yellow markings. Length 4 to 20mm.
Conops vesicularis is from a family of Thick-headed flies – Conopis Flies – which are parasitic to wasps and bees. The females lay their eggs on the hosts which hatch into grubs which devour the bee or wasp from the inside. The adults feed on nectar.
Nationally scarce, and absent further north.
Photographs of Conops vesicularis taken April 2011, rear garden, Staffordshire. © Pete Hillman 2011. Camera used Panasonic Lumix DMC-FZ38.