Petrophila is a small insect belonging to the family Pyralidae. It is commonly known as the rock moth due to its preference for rocky habitats. With a wingspan of about 2 centimeters, Petrophila has a distinctive pattern of brown and grayish-white markings on its wings, allowing it to blend in with its surroundings. This insect is primarily active during the night and feeds on lichens and algae found on rocks.