Mantis Devil

The Mantis Devil (カマキリの) is a devil that embodies the fear of mantises.

Appearance
The Mantis Devil has only been partially seen as a large sickle.

Personality
The Mantis Devil's personality is currently unknown.

Control Devil arc
Two Public Safety Devil Hunters, under the control of Makima, summoned a sickle of the Mantis Devil from ground to stop Power and Denji escaping by clapping their hands. It slashed Power, however it was not enough to stop her.

War Devil arc
The same two Public Safety Devil Hunters arrive at Fourth East High School when Yuko is revived after being hacked to pieces by Asa Mitaka. Despite attacking Yuko with the Mantis Devil's sickle, both are quickly killed.

Abilities
As a Devil, the Mantis Devil possesses all of the standard devil abilities. Besides those, not much is known about the Mantis Devil's abilities. It is shown that it had a contract with two unnamed Public Safety Devil Hunters. They are able to summon it's limb as a a sickle by clapping their hands. The sickle is strong enough to injure both the Blood Devil and the transformed Yuko.

Trivia

 * Its name is not revealed, in the second Character Popularity Poll it is referred as "Mantis Devil".