Lady bugs leave messes, too. and to add to the mess, the things STINK! They absolutely smell awful. If you smash one or something! It is awful.
They get in the tiniest spaces, and if one gets in, a thousand or two get in. They get under the siding on houses and "hide". THey seem to just be able to squeeze right through solid walls. They turn up in even the most sealed-in places!
They are truly an awful pest. I would take the stinkers over the wasps. I'd probably take the moths over the stinkers, though. If you suck the stinkers up in a vacuum, it makes the whole house smell like lady bugs from the vacuum blowing!
We don't have them too bad, here. My Mom gets them worse!