The green robber fly is a large robber fly with distinctive tiger stripes on the abdomen. The eyes are beautiful iridescent green, sometimes with a reddish or coppery cast. When it's flying around, it buzzes noisily and is intimidating.
As with other robber flies, this species can inflict a painful bite if mishandled.
This is one of more than 20 similar-looking species of robber flies in genus Promachus (PROM-uh-kuss), all called giant robber flies or bee killers, that occur in North America north of Mexico.
Learn more about this and other robber flies on their group page.