well its actually a house my friend just bought and he never noticed them until after he bought it but upon further inspection there are leaky pipes in the basement and the eve troughs are full so improper drainage into the basement.. going to fix the eve trough and extend the drain pipe today and hopefully this will help with moisture in the basement. there is actualy nothing even in the house at the moment but im sure if there was the bugs would be 100 times more difficult to get rid of.