Lists of Butterflies
- Butterflies of America – Mariposas Americanas: www.butterfliesofamerica.com A comprehensive online resource that will include information on taxonomy and identification, distribution and habitat, life history and bibliography for all butterfly taxa in America, including species, subspecies and undescribed geographic variants.
- Washington State Checklist – www.butterfliesandmoths.org You can get checklists by state and county within the state. Or you can ask for a checklist for anywhere in North America and Central America.
- Butterflies of Mexico- Mariposas Mexicanas: mariposasmexicanas.com (this site appears to be defunct)
- Pacific Northwest Moths – A website featuring high-resolution photographs of more than 1,200 species, along with detailed descriptions and distribution maps and an easy-to-use identification key.
- Caterpillars of Pacific Northwest Forests and Woodlands by Jeffrey C. Miller www.npwrc.usgs.gov/resource/insects/catnw/. This is a site from U.S. Geological Survey.