darkling beetles

so I bought my emperor scorpion about 2 months ago now and of course I bought him/her food at the pet store that day. my favorite things to feed my scorpion would be large grasshoppers from outside or super worms. emperor scorpion eat all types of insect but these seem to be my favorite because they are easy to get and are very nutritious to my scorpion. super worms are the larvae stage of a dark ling beetle and like all holometabolic insects they have 4 life cycles- egg, larvae, pupa, adult. you can get super worms at any pet store, typically 25 for about $4. emperor scorpions don't eat or drink everyday but I must make sure food is readily available. the super worms are consistently hungry since they need to eat and fatten up before they change into their next life cycle stage which is the pupa stage before they become beetles so they constantly move around which makes them easier to find for my scorpion.
I have three super worms in the pupa stage in my tank now, I don't know how many my scorpion has eaten but I know there is plenty still left moving around. I decided since these worms have survived this long without being eaten they deserved to be set free. once the finish the pupa stage and become beetles I will let them outside to live- born again free