How would I raise some beetle larvae I found in dried gentian seed pods?

I’ve been cleaning seeds of bottle gentian, and I found all these cool little beetle larvae inside the dried pods. I want to try and rear them to see the adults and ID them, does anyone have any suggestions on how to do so? Thanks!

keep them within the same or similar dried pods. they may develop into adults and come out after winter i guess and emerge out of pods themselves, so keep pod in a container with ventilation and monitor for adults

As Einsum says. Getting the humidity and ventilation right can be difficult. Maybe put the pods in a fine-mesh net bag and hang it outdoors where it will get as much wind and rain as the pods would if still in situ. I find in containers they either desiccate because I haven’t sprayed them enough or go mouldy because I have given them too much water.