A large beetle with a slick, dark green carapace approaches. The creature snaps its large serrated mandibles, black in color, together as it moves toward you.
GIANT BLISTER BEETLE CR 1
Speed 30 ft.
Melee bite +2 (1d6)
Special Attacks blister spray
20–ft. line, 1d3 acid damage, Reflex DC 12 negates, usable every 4 rounds. Anyone damaged by the inky-black acidic fluid also develops painful blisters and welts, and suffers a –2 circumstance modifier on attack rolls and ability and skill checks for 10 rounds. A Heal check (DC 10) or any cure spell heals the blisters and negates the penalties. The save DC is Constitution-based.
Environment warm forests
Organization solitary, cluster (2–5), or click (4–9)
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 aids 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.
Giant Blister Beetle from the Tome of Horrors Complete, Copyright 2011, Necromancer Games, Inc., published and distributed by Frog God Games; Author Scott Greene.