"Horror movies have a wide, potentially endless range of things that can be manipulated and shaped into terrifying objects, threats, and nightmares. Something that requires very little work on the part of a film/filmmaker to make creepy and disturbing, though, is our innate fear and disgust of bugs. It's an easy jump from seeing them onscreen to imagining them crawling all over our skin, and horror movies know it.
For our look at the ten best examples of bug horror on the big screen, we decided on a single rule: we're ignoring the fact that spiders aren't actually bugs. I know, we're terrible. It's not like we went nuts with it, though, as spiders only headline two of the ten films. Three feature ants, three are about roaches, one squirts worms in your eyes, and one of them stars carnivorous slugs. Which reminds me, neither worms nor slugs are bugs either.