The Chrysotoxum hoverflies are some of my favourites with their striking wasp-like features. The clip below is a Chrysotoxum festivum that was enjoying the brief bout of blue skies and warm sunshine at Afton Marsh a few days ago following days of gloom and drizzle!
The larvae of many hoverflies feed on various species of aphids. Those of this beauty feed on the so-called root aphids which are farmed by ants for their honeydew...which is why certain ants' nests are the place to search for them. Fascinating!