That's cool. I have a pharaoh ant colony at my house. They often invade and drive me nuts. I wasn't aware any spiders kill ants. Do you know of any names? Maybe I could order some. I like the idea of using spiders as pest control over poisons. I had tried the borax/peanutbutter in cut straws trick many times. But it's never worked on this colony.
Agelenopsis aka Grass Spiders aka Funnel Web spiders, is what I ended up capturing and raising/releasing.
If spiders are hungry they'll eat almost any insect.
I also found a really large red house spider the other day, moved it to a corner outside where it can do its work.
I figure any funnel weaver is going to weave silk webs in the cracks and either catch the pests or at least block access.
I found 4 distinct funnel webs on the bushes in front of my house and I can catch views of (hopefully my) spiders at the entrance, lying in wait for prey.
Last year I only saw that one which I captured and then raised her spiderlings after she passed.
Even big spiders just make me happy now, I just scoop em up in a plastic cup with a plastic spoon and find them a nice spot to setup a new web.
I may need one of those Goliath Birdeaters to get rid of fisch tho....