n large animal 

Perception +14; darkvision

Skills Acrobatics +9, Athletics +16, Stealth +11

Str +6 Dex +1 Con +5 Int -5 Wis +2 Cha -4

AC  21; Fort +15, Ref +13, Will +10

HP 135

Speed 30 feet, climb 30 feet

Melee [>] fangs +17, Damage 2d8+8 piercing plus giant tarantula venom

Melee [>] leg +17 (reach 10 feet), Damage 1d12+8 bludgeoning plus Knockdown

Hair Barrage [>>] The tarantula flicks its legs, flinging spiky hairs in a 15-foot cone. This deals 4d6 piercing damage with a DC 25 basic Reflex save.

Giant Tarantula Venom (poison) Saving Throw DC 23 Fortitude; Maximum Duration 8 rounds; Stage 1 1d6 poison (1 round); Stage 2 1d6 poison, flat-footed, and clumsy 1 (1 round); Stage 3 1d6 poison, flat-footed, and clumsy 2; Stage 4 1d6 poison and paralyzed. (1 round)

Bestiary, page 307.