syrphid fly

noun
  1. any of numerous beelike or wasplike flies of the family Syrphidae that feed on the nectar and pollen of flowers and have larvae that feed on decaying vegetation or prey on aphids.
Also syrphus fly [sur-fuh s] /ˈsɜr fəs/.
Also called flower fly.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018