FASA 365 Day 128, Butler Beatle or Murder Cricket. 2-3 inch Omnivore, (prefers carnivorous)
This machiavellian little piece of nastiness is as ruthless as they come. It has been observed, serving smaller, older, or injured insects. To the point of OVER feeding them, thus making them immobile, unable to defend themselves.
He then attacks from behind; biting through and severing the victims brain stem or equivalent. He then proceeds to eat them… alive.
If you find a bunch of inexplicable insect husks, you can safely say… “The Butler did it.”

Dungeon Survival note: If injured or incapacitated in the dungeon, and a group of these bugs start bringing you morsels or droplets of water, DO NOT accept it. It’s NOT a godsend.