Common greenbottle fly

This blow fly is bright iridescent green and is one of a number of metallic green flies which can be found, though they are from differing fly families. The female lays her eggs on carcasses, seeking the soft parts that are shaded from the sun. Larvae live in carrion and also in wounds on living animals, eating away the flesh with alarming rapidity, and so can be a problem in sheep-rearing areas.