This horse-sized insect has a brightly colored striped body, four wings and two long clawed forearms.
Taken from Creature Codex
Giant mantidflies are active predators of open habitats, using their keen senses and powerful claws to take down smaller organisms. Unfortunately for humanoids, “smaller” means man-sized, and mantidflies are not picky about hunting and eating humanoid prey. Mantidflies chase down prey on foot, as they are somewhat clumsy in the air—a mantidfly that spots prey from above will swoop down on it but land as soon as possible to get its footing.
Although mantidfly adults are generalist predators, their larvae specialize on the eggs of giant spiders. Mantidfly females lay their eggs in areas where giant spiders are common, and the grubs actively search out egg sacs, burrow into them and grow fat by consuming the spiders before they are born. A mantidfly larva uses the stats of a giant maggot with the advanced simple template, no regurgitate special attack and a +8 racial bonus on all Reflex saves vs. webs instead of immunity to disease. A mantidfly larva is CR 1.
Giant Mantidflies as Vermin Companions
Starting Statistics: Size Medium; Speed 40 ft, fly 40 ft. (poor). AC+4 natural armor; Attack 2 claws (1d6 plus grab), bite (1d4); Ability Scores Str 13, Dex 20, Con 15, Int —, Wis 14, Cha 6; Special Qualities darkvision 60 ft., low-light vision
7th-Level Advancement: Size Large; AC +3 natural armor; Attack2 claws (1d8 plus grab), bite (1d6); Ability Scores Str +8, Dex –2, Con +4; Special Attacks impale (2d8)
Giant Mantidfly CR 7
N Large vermin
Init +4; Senses darkvision 60 ft., low-light vision, Perception +10
AC 20, touch 13, flat-footed 16 (-1 size, +4 Dex, +7 natural)
hp 93 (11d8+44)
Fort +11, Ref +7, Will +5
Defensive Abilities mindless
Speed 40 ft., fly 40 ft. (poor)
Melee 2 claws +12 (1d8+5 plus grab), bite +12 (1d6+5)
Space 10 ft.; Reach 10 ft.
Special Attacks impale (2d8+7)
Str 21, Dex 19, Con 19, Int -, Wis14, Cha 6
Base Atk +8; CMB +14 (+18 grapple); CMD 28 (34 vs. trip)
Skills Fly -2, Perception +10; Racial Modifiers +8 Perception
Environment any plains
Organization solitary or pair
Impale (Ex) This ability functions as constrict, except that it deals slashing and piercing damage.