The Moth Photographers Group: www.mothphotographersgroup.msstate.edu/MainMenu.shtml This is probably the most useful moth website to be found on the internet. We should all be grateful to its creator, Bob Patterson.
The Moths of Southeastern Arizona: www.nitro.biosci.arizona.edu/zeeb/butterflies/mothlist.html
Butterflies and Moths of North America: www.butterfliesandmoths.org
Discover Life Moth Project:
Noctuidae of North America:
The Lepidopterists’ Society: http://www.lepsoc.org/index.php
Moths of North Dakota: http://www.ndsu.nodak.edu/ndmoths/ndmoths/home.htm This site has an illustrated key that I find useful.
Sphingidae of the Americas: http://www.silkmoths.bizland.com/danjansphinx.htm
HOSTS, a Database of Lepidopteran Host Plants: http://www.nhm.ac.uk/research-curation/research/projects/hostplants/
Southwest Moths: www.southwestmoths.org
Five Acres of Moths: www.fiveacresofmoths.org This is a splendid website. I highly recommend it to anyone with an interest in moths!
Vascular Plants of the Gila Wilderness: http://www.wnmu.edu/academic/nspages/gilaflora/
Other useful sites available by Google search:
Moths of Medina County, Texas
Moths of Orange County, California
Moths of Utah