Centipede, Swarm

A writhing mass of legs and poisonous pincers swarms across the ground in a deadly, undulating wave.
Centipede Swarm CR 4
XP 1,200
N Diminutive vermin (swarm)
Init +4; Senses darkvision 60 ft., tremorsense 30 ft.; Perception +4
DEFENSE
AC 18, touch 18, flat-footed 14 (+4 Dex, +4 size)
hp 31 (9d8–9)
Fort +5, Ref +7, Will +3
Defensive Abilities swarm traits, Immune weapon damage
OFFENSE
Speed 30 ft., climb 30 ft.
Melee swarm (2d6 plus poison)
Space 10 ft.; Reach 0 ft.
Special Attacks distraction (DC 13), poison
STATISTICS
Str 1, Dex 19, Con 8, Int —, Wis 10, Cha 2
Base Atk +6; CMB —; CMD —
Feats Weapon FinesseB
Skills Climb +12, Perception +4; Racial Modifiers +4 Perception
SPECIAL ABILITIES
Poison (Ex)
Bite—injury; save Fortitude DC 13; frequency 1/round for 6 rounds; effect 1d4 Dex damage; cure 1 save.
The save DC is Constitution-based and includes a +2 racial bonus.
ECOLOGY
Environment temperate or warm forest or underground
Organization solitary, pair, or tangle (3–6 swarms)
Treasure none