I don't know what the bug is but you might pull the plant out of the pot to see if there are any bugs nesting in there.

It's called a small leaf dwelling springtail. I've seen them around my lucky tree (which is probably my own fault, I watered it too much). They live on fungus and rotting roots, but they are also attracted to windowsills from the outside, especially if their outside habitat has dried up. I have some flypaper up and I'm drying out my soil, another forum suggested wiping down the windowsill with diluted bleach. Best of luck!

Using an inorganic/gritty mix should help with springtails, too, since they live off of decaying organic matter (as plantplanet mentioned). They're harmless to plants but I still don't like them in my apartment.

Thanks everyone for the help..so far I haven't noticed any new springtails. Will dry out the soil and switch mediums...keeping my fingers crossed that there aren't any eggs in there. *_*