pf2e.fyi
From Pathfinder Society Scenario #6-19: What Walks Again, which isn't enabled.

Greater Deskari Locust Swarm

CREATURE 11
Perception +22; darkvision
Skills Acrobatics +24, Stealth +22
Str +0, Dex +5, Con +6, Int -3, Wis +2, Cha -2

AC 30; Fort +24, Ref +22, Will +20
HP 160; Immunities acid, precision, swarm mind; Weaknesses area damage 10, splash damage 10; Resistances bludgeoning 5, slashing 5, piercing 10

Speed 20 feet, fly 40 feet
Acidic Swarm (acid)

Each enemy in the swarm's space takes 3d8 piercing plus 3d8 acid damage (DC 28 basic Reflex save). Any creature that failures its saving throw also takes 2d6 persistent acid damage.

Pathfinder Society Scenario #6-19: What Walks AgainORC