That looks the better choice. Would you have a guess what percentage of moths North of Mexico are represented in BG?

Last November there were approximately 3,700 moth species with guide pages at BugGuide, a number that is now probably getting very close to 4,000. There are of course many more species that are so far unidentified or identified only at the level of family, subfamily or genus.

There are approximately 11,000 described species of moths for North America North of Mexico, and at the very least 3,000 additional species that are so far undescribed (many not even recorded).

Most states would have a checklist of from 2,500 - 3,000 species of moths if all of them were known. The distribution of many moths, particularly among the micromoths, is very incompletely known.

I have so far photographed about 1,100+ species in my yard in Maryland. Judging from the diversity that I see in your photographs, you can do the same in or near Tucson.

We have at least one photo at MPG for about 8,300 species (including unnamed species shown at genus to family levels). About 4,400 of these include photos of living moths (with a backlog of at least 250 more species waiting to be posted).

Keep on clickin'

Just glad I can help.
Offhand I could not even guess the percentage! If I recall correctly there are near 8,000 species of named moths in western North America and many known species yet to be described/named.
Looking forward to your future finds!