Films: Larva (2005)
Location: Forest/Civilized Area
Height/Weight: Grow up to that of small dogs.
Summary: Parasites suck, especially if they're the ones that take their sweet time ruining your body before bursting out in whatever stage of life they choose. But you know what's worse? When said parasites are the result of unchecked capitalism.
History: In an unethical effort to boost the cattle industry, Host Tender Meats of Host, Missouri has been feeding cows a steady amount of growth formula that could make their meat a lot better. It seems alright at first...then some parasitic insects get a hold of that formula while inside the cows. Then they grow into giant flapping monsters. Then they decide that they won't be nearly as picky with their meat anymore...
Notable Kills: Any time they burst out of their hosts. That cannot be painless.
Final Fate: After terrorizing the town for some time, the insects, now all fully grown, are led to an isolated place where they are all blown up. It is fairly ambiguous as to whether they all got killed, though...
Powers/Abilities: These parasites fertilize within any environment of flesh, only coming out when they are adults.
Weakness: Anything conventional.
Scariness Factor: 3-The effects are worthy of an old video game, but the monsters are worth a lot more. Looking like bats from an eldritch dimension, these creatures will find you when they're no bigger than a hook worm, and they will eat you from the inside before eating others on the outside. Sheesh...
Trivia: -This film was also known as "Morphman" and "Metamorphosis".
-The cycle of these insects brings to mind that of the bot fly. Though instead of bursting out of your chest, the larva burst out of your head. Slowly. Painfully. You'd better bring tweezers or you're never getting one out.