Laurie, that site is maintained by a combination of volunteer entomologists and amateur contributions of photos, so there may or may not be a night photo.

I find the best way to find a bug there is to learn how their photo-species heirarchy works. Once you find a moth that vaguely resembles the one you are looking for, go to the top and click back for the broader species page and click images to get more photos. Or you can start from the other end, start from the home page, select 'moths', and you'll see many photos divided into large species categories, and can then become more specific as you recognize possible features of your insect.