Archives of Nethys

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Creatures in "Caterpillar" Category

Blood Caterpillar4
Horn Caterpillar1

Caterpillar, Blood Caterpillar

This enormous caterpillar is covered with hundreds of sharp, poisonous bristles.

Blood Caterpillar CR 4

Source Bestiary 5 pg. 51
XP 1,200
N Large vermin
Init +0; Senses darkvision 60 ft.; Perception +0


AC 19, touch 9, flat-footed 19 (+10 natural, -1 size)
hp 37 (5d8+15)
Fort +7, Ref +1, Will +1
Defensive Abilities bristles; Immune mind-affecting effects


Speed 30 ft., climb 30 ft.
Melee bite +8 (2d6+6), bristles +3 (1d8+3 plus poison)
Space 10 ft., Reach 10 ft.
Special Attacks poison, web (+2 ranged, DC 15, 5 hp)


Str 22, Dex 11, Con 17, Int —, Wis 11, Cha 2
Base Atk +3; CMB +10; CMD 20 (can’t be tripped)
Skills Climb +14
SQ compression


Environment temperate or warm forests
Organization solitary, pair, or clutch (3-12)
Treasure none

Special Abilities

Bristles (Ex) A creature that attacks a caterpillar with a natural attack or non-reach melee weapon must succeed at a DC 16 Reflex save or take damage as if the caterpillar had struck the creature with its bristles. The save DC is Dexterity-based and includes a +4 racial bonus.

Poison (Ex) Bristles—injury; save Fort DC 15; frequency 1/round for 6 rounds; effect 1d4 Strength; cure 1 save.


Blood caterpillars are among the largest of giant caterpillars. These massive vermin draw sustenance from rotting meat in the same way many butterflies eat rotting fruit. Behind their mandibles are spinnerets that allow them to manipulate silk, which the caterpillars can discharge to spin webs and immobilize their prey. Their venom weakens the muscles of creatures exposed to it, aiding the caterpillars in restraining and devouring even large, strong, and agile prey.