Mass Hysteria

Mass Hysteria (集団ヒステリー Shūdan hisuterī) is a strange phenomenal creature that appears in the light novel JORGE JOESTAR.

Description
This phenomenon is based off of the illness. All sorts of threats and illusions, real or not, are transferred throughout certain populations. This causes fear and rumors, which are later manifested into actual creatures. Rumors fuel the hysteria, eventually causing people to commit suicide because of it. These creatures can be destroyed if people can overcome these fears of them.

Moth (Mothman)
Moth (モスマン Mosuman) is one of the creatures created from people's fears. During the lock down because of Antonio Torres, people were forced to stay in their homes and lock the doors. After that night, the people had feared that another incident like this would happen again. Their fears grew larger and larger which eventually created Mothman.

One night, the people had sighted Mothman and gathered in La Palma's church, covering the walls with drawings of Moth. They then burn the church down, using the ashes and charcoal to draw more pictures of Mothman. They had all turned into zombies, which kept them alive so they would be able to draw more until the fire kills them again. Since that night, the remaining villagers had began to see Mothman in their homes at night; like Edvard. After that night, all of the villagers had been left filled with fear, only thinking about when they would die.

In the 37th Universe, Moth appears inside the gymnasium of Budogaoka Academy. Where all of the citizens of Morioh had gathered during their emergency. In a trance, the citizens begin to throw gasoline at each other. They are all eventually saved by Koji Hirose with his Blue Thunder. He destroys the gym's walls and breaks the citizens' trance.