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 Identification App! PNW Moths is a free Android app for identifying all of the moth species on this website. More info here .


National Moth Week (July 17-25): National Moth Week is an international citizen science initiative to celebrate moth diversity. To register to join or host a mothing event (events can be private or public) click here .

Searching for info about a specific species? The easiest way to find a species on this site is to use your browser's find function (Ctrl+F for Windows/Linux or Command+F for Mac) on this page .

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Quick Stats

Map of all locations for which we have moth data

  • 1,248 Species Profiles
  • 95,112 Specimen Records
  • 4,244 Specimen Images