moths, moths, moths
What you probabaly have are 'grain moths' which lay their larva in grains, cereals,flour, dried fruit, nuts etc. They will get into anything even through plastic bags. The best way to get rid of them is to make sure that they have no food to eat. Any dry food should be in sealed containers (thick plastic or glass) that they can't get into. You may ocassionally find them in sealed containers if they had already infested the food before it was sealed. Make sure that there are no crumbs or other food left in cupboards. They make glue -type traps which attract them with phermones and which are fairly efficient. Expect it to take a few months to completely get rid of them.