Is this a beetle?

[neoflex]

Have any shots pulled back some? I am guessing it may be beetles too. If it's a shipment that just came in I would send the entire package back. Yes, you can freeze them but in a household freezer you are not guaranteed to eliminate the problem. Why introduce the problem to your humi if you do not need to, I would send it back and let the vendor know it's because of beetles and be sure to tell them that the hole is not plume.