"The maggot's the size of a..." Quaji describes the enemy as best he could (size, possible weak point, position, etc.) for the man named Manius as he recall information about these large disgusting maggots.
Action: Skill, Knowledge(Nature) check vs Maggots
Rolls
Knowledge (Local), Knowledge (Nobility) - (1d20+2, 1d20+2)
1d20+2 : (13) + 2 = 15
1d20+2 : (15) + 2 = 17
Knowledge (Nature): Identify Maggots - (1d20+2)
(3) + 2 = 5