The Poisonous Corpse Eating Scarabs doesn't differentiate anything but would just eat everything as long as they have flesh.
They would even eat zombies thankfully they don't eat elemental or other beings that has no flesh on them if not they would become an elemental creature worst nightmare.
He then thought about when he first
encountered this 12 insects and finally realised why his undead subordinates that has flesh of them have become nothing more than bones when the insects flew towards them.
He then looks at Shadowslash and asks "Master I know what kind of monsters the Poisonous Corpse Eating Scarabs are but what about the Ancient Jewel Scarabs?"
Shadowslash smiled as he spoke "They are the more advanced lifeform of the Poisonous Corpse Eating Scarabs and they could evolve and Rank up to Crimson Gold Rank the unbreakable limit of the Poisonous Corpse Eating Scarabs"