In the past weeks I've had these bugs show up. First on my dinner table and now on a book shelf. I've sprayed bug spray and then vinegar on the table itself. But it doesn't seem to deter them.
Had a bug guy come out. They were white, fuzzy, super tiny almost spider\ant types. Turned out they were baby ghost ants.
I really can't see it well enough to be sure what it is. What type of insecticide did you try to use? I would start with permethryn (Permanone) as it is very effective, has a mild odor and is one of the safest to use (synthesized plant extract).