Insect and Spider Identification: Weird old book/vinyl cover bug, 1 by caiobm

caiobm wrote:
Hey! Ever since I moved to my new apartment and brought my old comic books and vinyl records with me, this bug has been appearing (and they hang mostly around those objects - and paper). I'm kinda worried 'cause I keep seeing bigger ones... And there's a LOT of them. When they're small, they're white, then they get kinda greyish (like in the pic), and the really big ones look metallic. If this helps, I'm from Brazil.