Beetle, Blister

Family: Beetles

Small beast, unaligned

Armor Class 12 (natural armor)
Hit Points 13 (3d6 + 3)
Speed 30 ft.

11 (+0) 10 (+0) 12 (+1) 1 (-5) 10 (+0) 7 (-2)

Damage Immunities acid, poison
Senses darkvision 60 ft., tremorsense 60 ft., passive Perception 10
Challenge 1 (200 XP)


  • Bite. Melee Weapon Attack: +2 to hit, reach 5 ft., one target. Hit: 3 (1d6) piercing damage plus 3 (1d6) acid damage.
  • Blister Spray (Recharge 5-6). The beetle exhales a 15-foot cone of caustic acid, causing painful blisters to form on the skin of any creature caught in the spray. Creatures in the area must make a DC 12 Dexterity saving throw, taking 10 (3d6) acid damage on a failed save, or half as much damage on a successful one.


A large beetle with a slick, dark-green carapace approaches. The creature snaps its large black serrated mandibles together as it moves toward you.

Blister beetles are nocturnal scavengers found in forests or underground.

They are non-aggressive creatures, but have voracious appetites and will, if food is scarce, attack just about anything that comes close to them. Their favored meal, however, is bees: both giant and normal. Their immunity to poison grants them protection from the deadly sting of giant bees (normal bees cannot penetrate their carapace). A cluster of beetles waits near an area frequented by bees and then spring to attack when a bee lands on a flower or plant. Another favored meal is grasshoppers. Blister beetles ambush these large insects and drag the prey back to their lair.

Blister beetles reproduce and mature rapidly. The female deposits a group of 2d4 eggs in a hole in the nest. The male then sprays the eggs with its blister spray. Within three days the eggs burst open with an audible pop and out swarm the young blister beetles. Young reach maturity in about three weeks. When attacked, a blister beetle releases a foul stream of black oily liquid that irritates the skin of any living creature it hits. Afterwards, it moves to combat and strikes with its mandibles.

Section 15: Copyright Notice

Tome of Horrors © 2018, Frog God Games, LLC; Authors: Kevin Baase, Erica Balsley, John “Pexx” Barnhouse, Christopher Bishop, Casey Christofferson, Jim Collura, Andrea Costantini, Jayson ‘Rocky' Gardner, Zach Glazar, Meghan Greene, Scott Greene, Lance Hawvermale, Travis Hawvermale, Ian S. Johnston, Bill Kenower, Patrick Lawinger, Rhiannon Louve, Ian McGarty, Edwin Nagy, James Patterson, Nathan Paul, Patrick N. Pilgrim, Clark Peterson, Anthony Pryor, Greg Ragland, Robert Schwalb, G. Scott Swift, Greg A. Vaughan, and Bill Webb

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