Francesco Maria Guazzo prepared this classification of demons based on a previous work by Michael Psellus. It was published in his book Compendium Maleficarum in 1608.
Demons of the superior layers of the air, which never establish a relationship with people.
Demons of the inferior layers of the air, which are responsible for storms.
Demons of earth, which dwell in fields, caves and forests.
Demons of water, which are female demons, and destroy aquatic animals.
Demons of the underground part of the earth, responsible of keeping hidden treasures, causing earthquakes, and causing the crumbling of houses.
Demons of the night, which are black and too evil. These demons avoid daylight.
