Antlion also known as Distoleon tetragrammicus does not normally trap Spiders because of a spiders agility, but it is possible. If a spider enters a pit with an antlion lying at the bottom the antlion will try to trap and prey upon the spider with out hesitation, and then spit it out of it's pit to prevent blockage from its next victum.
With "antlion", I guess you mean the pit digging larvae. It's appetite increases with it's size. Other then that, I guess it just eats whenever it gets the chance. Maybe they grow faster if they get more to eat? Antlions are also creatures from a long range of games and movies. Antlions in the game Half Life 2 mainly eat Seraphods, but they also eat people.
Scavengers (including vultures) will eat dead lions, and a large group of hyenas could overpower a single lion. Otherwise, there is no animal that consistently feeds on lions, which are called "apex predators" because they are at the top of the food chain. Ironically, modern humans kill lions, but not for food.
I think that there are insects that the Spiders eat.
grass spiders eat other spiders
yes frogs do eat small spiders
yes crows eat spiders
They eat insects and other spiders
only as babies will they eat insects and spiders.
Spiders are carnivorous, they eat insects
no some insects do not eat spiders
No praying mantis do not eat spiders
Spiders eats insect.