All grown up!
The [presumed] Euplectrus wasps emerged after just a few days. The pupae weren’t much to see, they were little specks in the dried up husk of the caterpillar. The adults are, well, not exactly majestic, but here they are. There were 6 or 8 of them.
So they were less than 1/4″ long. Tiny! I let them go so they could continue their lives. The end!