From Pathfinder Society Scenario #5-19: Demonic Afterparty, which isn't enabled.

Ravenous Locust Swarm

CREATURE 3

Perception +12; darkvision, scent (imprecise) 60 feet

Skills Acrobatics +10, Stealth +10

Str +3, Dex +5, Con +4, Int -5, Wis +0, Cha -4

AC 19; Fort +10, Ref +11, Will +14

HP 31; Immunities swarm mind, precision; Weaknesses area damage 6, splash damage 6; Resistances bludgeoning 3, piercing 6, slashing 6

Swarm Mind

This monster doesn't have a single mind (typically because it's a swarm of smaller creatures), and is immune to mental effects that target only a specific number of creatures. It is still subject to mental effects that affect all creatures in an area.

Speed 20 feet, climb 20 feet, fly 15 feet

Swarming Bites

Each enemy in the swarm's space takes 2d8 piercing damage (DC 20 basic Reflex save).

Pathfinder Society Scenario #5-19: Demonic AfterpartyOGL