Question: There is a bag of sugar that is full of **dead** weevils. These tiny insects are just the same size as sugar particles. If they were alive, I could expose them to the sun and they would fly away. If their size were different than the sugar particles size, I could filter them through a mesh. Any practical suggestions to get rid of these dead insects and save the sugar?

Answer: 
You can dissolve the sugar in water and filter it, then evaporate the water.
If the dead weevils are a different weight than the sugar crystals, you can use moving air to separate the sugar from the weevils.