Pacific Northwest Moths is a comprehensive source of information about more than 1,200 species of moths.

Drawing from the knowledge of moth experts and specimen records from the region’s major insect collections, this site features detailed species accounts, high resolution photographs, and an interactive identification key for every Pacific Northwest moth species within the families Drepanidae, Uraniidae, Lasiocampidae, Saturniidae, Sphingidae, Notodontidae, Erebidae, Euteliidae, Nolidae, and Noctuidae.

Explore this site to identify a moth that you have found, or to learn about the amazingly diverse moths of our region. Because the site also works on mobile devices, it serves as an electronic field guide to the region's moths!

New Book on Pacific Northwest Insects! Pacific Northwest Insects (Seattle Audubon, 528 pp.), by Merrill Peterson, is now available. More info here .



Searching the SiteGoogle no longer supports the search function on this site. The easiest way to search for a species is to select “Browse All " under Species Fact Sheets and use your browser’s find function.

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Quick Stats

Map of all locations for which we have moth data

  • 1,221 Species Profiles
  • 91,804 Specimen Records
  • 3,938 Specimen Images