First post, yeah!
I'm an avid moth fan, and I just like any other insect they are trying to live their lives until they naturally (or unfortunately) die. No need to scream in fear!
I found this super cool article that talks about The War Between Bats and Moths and how moths can literally make a bat blind! Kinda like the katydids mimicry of the female cicada's cry. Here's one of the videos in the article and there's a slowed down scene of the sonar in action!
There's also news about scientists trying to control the population by trapping them with a plant produced sex-pheromone!
And finally, I found this short slideshow showing different kind of moths patterns and how they evolve to evade predators! Enjoy!