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Ant, Knight Ant

This hulking, wide-headed ant is the size of a horse, its antennae twitching and mandibles scarred.

Knight Ant CR 4

Source Bestiary 5 pg. 27
XP 1,200
N Large vermin
Init +0; Senses darkvision 60 ft., scent, tremorsense 30 ft.; Perception +1


AC 17, touch 9, flat-footed 17 (+8 natural, -1 size)
hp 42 (4d8+24)
Fort +9, Ref +1, Will +2
Immune mind-affecting effects


Speed 50 ft., burrow 20 ft., climb 20 ft.
Melee bite +7 (1d8+5 plus grab), sting +7 (1d6+5 plus poison)
Space 10 ft., Reach 5 ft.


Str 20, Dex 10, Con 21, Int —, Wis 13, Cha 11
Base Atk +3; CMB +9 (+13 grapple); CMD 19 (27 vs. trip)
Feats Coordinated Defense, Toughness
Skills Climb +13
SQ hive guard


Environment any warm
Organization solitary, pair, scouting party (2 plus 1d4 giant ants), colony (3-8 plus 10-100 workers, 3-12 soldiers, and 1 queen)
Treasure none

Special Abilities

Hive Guard (Ex) Knight ants gain Coordinated Defense as a bonus feat, and giant ants from the same colony also gain this feat when adjacent to a knight ant. As a standard action, a knight ant can use its oversized head to provide total cover to creatures behind it or sharing its space, as if wielding a tower shield.

Poison (Ex) Sting—injury; save Fort DC 17; frequency 1/round for 6 rounds; effect 1d4 Str; cure 1 save.


These giant ants use pheromones to organize the complex work and protection of their colonies, identifying insects of their own or allied colonies and warding off intruders. They have a specialized physiology, including both enhanced pheromone glands and an especially wide, oversized head. The sheer size of its head allows a knight ant to block off entire tunnels within the hive in order to protect its fellow ants. It remains in place long enough to fend off invaders, even at the cost of its own life.

A knight ant is 10 feet long and weighs approximately 1,100 pounds. Its head is 7 feet across, and the flanges on the sides make it appear slightly concave.

Creatures in "Ant" Category

Army Ant Swarm5
Giant Ant2
Knight Ant4
Megapon Ant6