Insect, Swarm

Source: System Reference Document 5.0
The text on this page is Open Game Content, and is licensed for public use under the terms of the Open Game License v1.0a.

Insect, Swarm

Medium beast, unaligned

Armor Class 12 (natural armor )

Hit Points 22 (5d8+25)

Speed 20 ft.

3 (-4) 13 (+1) 10 (+0) 1 (-5) 7 (-2) 1 (-5)

Damage Resistances bludgeoning, piercing, and slashing

Condition Immunities charmed, frightened, grappled, paralyzed, petrified, prone, restrained, and stunned

Senses blindsight 10 ft., passive Perception 10

Challenge ½ (100 XP)

Swarm. The swarm can occupy another creature’s space and vice versa, and the swarm can move through any opening large enough for a size Tiny insect. The swarm can’t regain hit points or gain temporary hit points.


Bites. Melee Weapon Attack: +3 to hit, reach 0 ft., one target in the swarm’s space. Hit: 10 (4d4) piercing damage, or 5 (2d4) piercing damage if the swarm has half of its hit points or fewer.

This represents a mixed mass of different kinds of insects.

Source: 5srd adaptation of Pathfinder Chronicles: Heart of the Jungle.

Even seasoned adventurers sometimes flinch at the mention of swarms, and even ordinary insects can form irritating swarms under the right conditions. Some trackers claim they can predict the conditions under which insect swarms form. For example, one tracker might insist it’s the change in barometric pressure before a storm that triggers swarming, while another might believe it’s a change in the prevailing winds. The potential causes are as numerous as the people who espouse them, and if folklore holds a definitive answer, it has yet to become common knowledge.

For more specific swarms, see Beetle, Swarm, Centipede, Swarm, Spider, Swarm, or Wasp, Swarm.