The Elgin (Ill.) Courier News said Sunday that 37-year-old Sara Tinsley was indicted by a grand jury last week on charges she stabbed one of the lizards and threw the other one against a wall.
Police said Tinsley threw the lizards in a garbage can, during an incident that followed a heated argument with her husband over the phone April 2.
Police said they found the animals in the refuse container that day while responding to a complaint of a domestic altercation.
Also on that day, Tinsley's husband turned himself in to face a misdemeanor charge of battery, police said.
The alleged attack left one lizard dead, but a veterinarian was able to save the iguana that had been stabbed, the newspaper said.