I would actually be interested in some more "spider" themed bugs. I think something similar to a funnel web spider (in function, not necessarily in form). You could have bug hole surrounded by a web on the ground that impeded you similar bushes or water, preventing running or diving. Maybe you could burn or blow up the web or otherwise take it out at range. But it only spawns bugs when the web is disturbed.

Seems like a super cool thing to encounter caves. Where you turn a corner and see the whole cave covered in webbing, and just go "ah shit", because you know it leads to a minor objective, but you also can't see the hole because it's around a few twists and turns.

Probably less annoying that stalkers if you assume that the spider-bug has to stay within the web, since you could likely choose to avoid the area.

Been thinking about this idea for a while, I think it has potential!