A field technician brought in a larvae a few weeks ago. I looked it up in an insect book and discovered it was a predaceous diving beetle larva (Dytiscidae). The beetle enjoyed consuming mosquito larvae, gulping them down like a seagull eats a hotdog. After reading that they form their pupa in soil, I brought some dirt in and reared it to adult. A week and a half later I had an adult predaceous diving beetle.
Unfortunately I do not know the species, but I will post it once I find out. No photos of the larva or pupa, but plenty of the adult.