ce medium petitioner 

The larvae appear as maggot-like grubs with the face the petitioners had in life.

Perception +7; darkvision

Languages Abyssal

Skills Athletics +7, Planar Lore +7

Str +2 Dex +2 Con +2 Int +2 Wis +2 Cha +2

AC  15; Fort +7, Ref +7, Will +7

HP 22; Immunities disease, poison

Speed 25 feet

Melee [>] jaws +7, Damage 1d8+2 piercing

Bestiary 2, page 198.