Just 10 out of the entire colony. So what are you keeping them in? I have mine in a rubbermaid tub that I cut some of the lid out and put screen. I never had any escape until my cat knocked over the tub while I was in Hawaii!
Lol especially not since spiders have moved in! They are certainly keeping them dead. We have tried various things, it seems like the smaller ones get out but none of the adults do. I have seen some live ones getting out of the room they are in and that is what worries me.
Either way, I need to move them because of the spiders.