Guess that Pest

Guess that Pest

I'm studying IPM in school, but this critter is one I've NEVER come across yet. my roommate spotted some whitish-clear, kind of like a fungus gnat larva, except they have legs and feelers, and they scurry on the soil surface very quickly. They're about as thin as fungus gnat larva, and are about half the length. They're not crawling on the plant itself, just the soil. Does anyone know what this is? We got the soil from a bag in our closet.. it's been there a while, but I suppose that might not have anything to do with it. Hope someone can help!
what is THIS?

what is THIS?

grape tomatos……

grape tomatos……

Mystery pod and LOTS OF BEANS

Mystery pod and LOTS OF BEANS

Introducing a work-in-progress.

Introducing a work-in-progress.

ikea, red & white

ikea, red & white

Mystery flowering shrubbery…ID help requested…

Mystery flowering shrubbery…ID help requested…