n gargantuan animal 

Perception +20; darkvision

Skills Acrobatics +18, Athletics +25, Stealth +22

Str +8 Dex +3 Con +5 Int -5 Wis +3 Cha -2

AC  31; Fort +24, Ref +20, Will +18

HP 220

Speed 50 feet, climb 50 feet

Melee [>] mandibles +25 (reach 10 feet), Damage 2d12+14 piercing

Melee [>] leg +24 (agile, reach 20 feet), Damage 2d10+14 piercing plus Grab

Fling [>] The deadly mantis flings a grabbed creature into the air, up to 30 feet overhead and up to 30 feet away from the mantis (the creature takes damage from the fall as normal). If the flung creature lands on another creature, the creature it lands on takes the same amount of bludgeoning damage. The creature being landed on can attempt a DC 31 basic Reflex save.

Leaping Grab [>>] The mantis Leaps up to 40 feet vertically and 20 feet horizontally. At any point during the jump, it can make a leg Strike. If it hits, it automatically Grabs the target, bringing the creature along until the end of the jump.

Rending Mandibles [>] The mantis makes a mandibles Strike against a creature it has grabbed. If that Strike hits and the creature is wearing armor with Hardness 12 or lower, the armor is broken. This Strike doesn't further damage armor that's already broken.

Sudden Strike On the first round of combat, creatures that haven't acted are flat-footed to the giant mantis.

Bestiary, page 233.