bombylious

adjective1

1. •
   (no longer used) Buzzing like a bumblebee.

   • [T]he VVhame or Burrel-fly, vvhich is vexatious to Horses in Summer, not by stinging them, but only by their bombylious Noise, or tickling them in laying their Nits, or Eggs on the Hair; […] — 1713