These creatures that were once Kobolds were first encountered as they emerged from tunnels within the inner rooms of a Dragonborn burial chamber (during the session Demon Seed)that had been taken over by cult worshippers and subsequently, Kobolds.
They can best be described as part Kobold and part fly. In the middle of their body is a second set of legs that they can use to transport themselves faster and wield a small weapon. Their eyes are black and bulbous and their mouth have changed so that a tiny proboscis pokes out. They wear no armour or clothes and their bodies have developed a patchy exoskeleton. Limp tendons also hang on their back that would indicate part development of wings. They appeared to be born from Kobold eggs in a lower room of the dungeon that appeared to be a hatching area.