Mod that adds MORE creepy crawlies?

[SignedName]

There are lots of mods that replace/remove bug-type enemies, but are there some that add some (or rather, a lot)? I really liked the look of the spider dungeon in Salt Lake Stories, but wanted that in the vanilla game. I really want to feel like I'm getting swarmed (and have a reason to use flamers). An ant mound ought to have more than half a dozen ants, after all. Preferably, in addition to the giant variants, a ton of smaller ones that are less dangerous and can even be squashed underfoot like Mantis Nymphs in the base game.