Your porch light is amazing - to a moth.

Why do moths love your porch light so much? 

They think they’ve arrived - on the moon. Most species of moths use the light of the moon to navigate. It’s their primary reference point to help calibrate their flight paths and stay well above their predators. Your porch light, headlights or camp fire is really confusing to them. They may think they’re flying up towards the moon, away from danger, but didn’t expect it to be so close.