green bottle or greenbottle fly lucilia species feeds on nectar on a hogweed heracleum sphondylium flower . valgardena, south

apiaceae blow blowfly bolzano bottle bug calliphoridae dolomites feed feeding feeds flies flower fly green greenbottle heracleum hogweed insect italy landed lucilia metallic mountain nectar pollen pollinating reflection reflective south species sphondylium tyrol valgardena wildlife wings