[quote=Fallenreaper]
There's also another way: Frost (cyromancer teacher) can slow them down with her magic and ice over their wings a bit, making them weak enough to shatter with physical force alone.That is if the pair is up to the task? 
[/quote]
My personal preference would be for them initially to escape them to arm up. If they end up outside again, though, then I'm sure the moths would still be a problem.