New World screwworm

noun1

1. •
   An egg, larva, pupa, or adult of genus Cochliomyia, especially of species Cochliomyia hominivorax, which feeds on living tissue, or Cochliomyia macellaria, which does not.

   • The New World screwworm fly is a tropical species, unable to survive Midwestern or Great Plains winters, so it was a seasonal scourge. — 2025