Moldy flour - yuk!

[Midnight Rambler]

If you see little narrow moths around your house, about half an inch long with the front third dirty white and the rest dark gray, those are Indian meal moths that eat flour and rice. If they're already inside, both they and the beetles can chew through plastic bags (and the adult beetles will sometimes eat their way in as well). Picture here: http://en.wikipedia.org/wiki/Indianmeal_Moth