Thanks for the reply Doug. I've been doing just that--keeping the porch light on and trying to attract moths. Problem is that I live in Los Angeles, and we have moths but not in big numbers. After several nights with the porch light on, I have yet to a decent-sized moth. But in light of what you said, I think I will take a drive to a nearby university campus that is well watered and see if their lights are attracting better specimens.

Thanks, Mike