Liphyra Brassolis(caterpillar)-These things are a ant's worst nightmare, first off they literally look like a loaf, their exoskeleton/shell is practically impervious to ant bite's and stings and it is so heavy ants can't flip it over. Think of it like a woodlouse BOSS with it's high durability but much tougher, it's doesn't attack but it doesn't stop either, it's on a path to kill your queen and it will devour any eggs in it's path. To beat this thing instead of using a swarm tactic, you would have to use bigger and stronger ants like the driver ants, bull ants, and BULLET ANTS to actually do something.