#greenfly  greenish aphid; pest on garden and crop plants
  supertype:  #aphid  any of various small plant-sucking insects
  subtype:  #green_peach_aphid__greenpeachaphid  yellowish green aphid that is especially destructive to peaches
  subtype:  #pale_chrysanthemum_aphid  important pest of chrysanthemums

No statement uses or specializes #greenfly; click here to add one.