Larvae are pale yellowish maggot-like creatures with the faces of men and women, or less frequently other sentient creatures. They are large, about 1 foot in diameter and 5-8 feet long, and their faces are always contorted in expressions of horror, pain, or anger. Many believe that larvae are the souls or spirits of the evil dead, but no one has ever identified a larva as being any specific deceased person, so this cannot be proven.

One thing that is certain is that larvae are the lowest form of infernal, found in the planes or dimensions where other, more powerful demons or devils make their lairs. Larvae are traded as if livestock, and indeed may be consumed by other infernals as food. Some say that a few of the most perfectly evil larvae are transformed into the forms of true demons or devils, and that this is how such creatures reproduce, but this has never been successfully confirmed.

Larvae have no special powers or abilities.