Well I can't find the page I was looking for, but in general, that is what you can expect. Though my pupa tend to become beetles far faster than what I normally am used to. During my last colony, it took 1-2 weeks for a pupa to become a beetle. Right now, my pupa are becoming beetles in about 4-5 days, sometimes less. When I looked it up, it said that pupa can turn into beetles anywhere from 3 to 30 days, depending on environmental factors, so if you want your pupa to become beetles faster, I'd put them in a warm spot. It also says that a female beetle can lay up to 500 eggs!