We’ve had many Soldier Flies pupate and emerge as adults. Some of them have flown away. Others have stayed. Our little greenhouse isn’t that big and we want the females to be able to leave and come back. I was told that the females need to be able to travel 200 feet. I wish we had a longer greenhouse to keep them inside at all times. I sure hope they come back! Everytime I think this experiment is ready for the compost pile, these flies surprise me. We’ll see.