The USDA this week confirmed the first known infection of the carnivorous fly larva, which feast on the flesh of living mammals, after the United States eradicated the nightmare bugs in the 1960s.

A flesh-eating New World screwworm was recently detected in Mexico just 25 miles from the United States border, according to the USDA.

If confirmed, it would be the fly's first breach of the US-Mexico border.