Antlion is an enemy added in Revelations Chapter 2.
Antlion will be burrowed underground, sucking in the player and nearby enemies. If the player falls in, they will take damage and Antlion will spit the player back out. If an enemy gets sucked into Antlion, Antlion will devour the enemy, sending out a few tears. Antlion will then emerge from the ground. Antlion will slowly follow the player before unleashing a long volley of tears towards the player. When the volley is over, Antlion will fall over dead. Antlion's carcass will remain on the floor and will deal contact damage to the player, but if all other enemies are killed, the room will be cleared.
Antlion Babies spawn from Antlion Eggs. They directly follow the player.