I don't know. I usually let the spiders alone if they've set up house in a discreet corner. Most all other bugs get caught and released. Exception, like another said, I cann't bring myself to catch a roach, and sorry... they get killed. I do try to do it as quickly and painlessly as possible. If I think they suffered I feel pretty guilty (actually have tears writing this, to know why... read on lol) We have these bugs that freak me out as much, if not more than, roaches. Silverfish. Yeah, just because they freak me out does not mean they should have to pay for it with their lives, but since they can live up to a year without food, and like to eat paper and linens, etc... there is simply no way to drive them out. So, we killed them, each time we saw them, and though there was an obvious infestation when we moved in, the appearances has dwindled from several a week to perhaps one every 4-6 months.
Ants, I have way too much respect for, like spiders. lol I've found that taking away their food source and disrupting their path is a great way to get them out.
I'm curious as to what people have done about fleas and gnats (or whatever those little flies are that come in w/ the fruit). I'll read on, probably already something posted. Thanks for the great thread!