Maybe blanching the bugs before freezing them could help to. That's what you do with vegetables to preserve them better. Before you stick them in the freezer you put them in boiling water first. You get the water boiling then stick them in it for abou 15-30 secs take out and feeze. I don't know if this will work but if your going to experiment you might as well try it. If you do try it let me know how it works. The trick will be getting the critters in the water. Maybe wrap them in cheese cloth or pantie hose to prevent them from jumping out of the water?