This is a classification of demons prepared by Michael Psellus in the 11th century and that undoubtedly was an inspiration for the one Francesco Maria Guazzo prepared later.
Demons of air, which cause atmospheric phenomena
Demons of earth that try to tempt people
Demons of water that destroy aquatic life, and cause wrecks and death of people in the sea
Demons of the underground, which cause earthquakes and volcanic eruptions
Demons of night, which avoid daylight and are invisible to people
