Eciton burchellii
Eciton burchellii is a species of New World army ant in the genus Eciton. This species, one of the most extensively studied ant species, consists of expansive, organized swarm raids that give it the informal name, Eciton army ant. This species displays polymorphic caste features, with the soldier ants having much larger heads and mandibles. In terms of geographical distribution, this species is found in the Amazon jungle and Central America.
Photo credits:João P. Burini ,Mark W. Moffett/Minden Pictures, Francesco Tomasinelli / Natural Visions
I would think the knowledge that these sorts of creatures exist would help explain to humans just why Scraplets are so utterly horrifying despite their miniscule size.