I thought they came in on some peaches we bought.
Just found out they're in the garbage can in the garage and slippin in when the kids open and close the door going in and out.
Neighbors have gutted and are redoing their basement so they've had one of those HUGE dumpsters in their drive way for the last several weeks. ( I think this is the 7th one ) and they have a kid who is always eatin bananas and he pitches the skins in the dumpster.
My kids said there are swarms of the things over there so now I know the source.
Garbage was Wed. We bleached the cans that night and now we have them again. ARRRGH!