Violet Black-legged Robber Fly, Dioctria atricapilla.

Violet Black-legged Robber Fly, Dioctria atricapilla.

Observation - Violet Black-legged Robber Fly, Dioctria atricapilla. - UK and Ireland. Description: Shiny black fly with a violet underside to the abdomen. Eating a beetle when seen.

Shiny black fly with a violet underside to the abdomen. Eating a beetle when seen.