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Moths of North America
Description of this resource Clickable Map of the U.S. See our FAQ entitled Identification of Moths and Butterflies
Identify a moth by viewing thumbnails of our photos
County (U.S.) and state (northern Mexico) checklists Those who contributed photos or helped compile distribution records
Distribution maps, photos and species accounts Publications used to compile distribution records
Links to other moth sites How to cite this resource
See our FAQ entitled How Can I Report a New County Record for a Moth or Butterfly Who to contact
Introduction
A description of this resource and the information it contains
Photo Thumbnails
Identify a moth by navigating through thumbnails of all of our photos
Checklists
Checklists of all species reported in a particular county or region
Distribution Maps
North America (Combined Maps)
Photos, species accounts, and combined maps for moths occurring in the conterminous U.S. and northern Mexico
Great Plains
Colorado -- Iowa -- Kansas -- Minnesota -- Missouri -- Montana -- Nebraska -- New Mexico -- North Dakota -- Oklahoma -- South Dakota -- Texas -- Wyoming
East of Great Plains
Alabama -- Arkansas -- Connecticut -- Delaware -- Florida -- Georgia -- Illinois -- Indiana -- Kentucky -- Louisiana -- Maine -- Maryland -- Massachusetts -- Michigan -- Mississippi -- New Hampshire -- New Jersey -- New York -- North Carolina -- Ohio -- Pennsylvania -- Rhode Island -- South Carolina -- Tennessee -- Vermont -- Virginia -- West Virginia -- Wisconsin
West of Great Plains
Arizona -- California -- Idaho -- Nevada -- Oregon -- Utah -- Washington
Northern Mexico
Moths of Western North America -- Distribution of "Oecophoridae"
Information about the biology and conservation of the "Oecophoridae" family of moths. Use the links above for distribution maps of this family.
The International Lepidoptera Survey: The Taxonomic Report
A non-profit organization devoted to the discovery, determination, and documentation, of new butterflies and moths around the world.
Other Links
Links to other moth and butterfly resources on the Internet.
Moths and Butterflies of the Montane Cordillera Ecozone
Submitting New County Records
See our FAQ entitled How Can I Report a New County Record for a Moth or Butterfly?
Identifying a Specimen
See our FAQ entitled Identification of Moths and Butterflies
Common Moth and Butterfly Questions
A list of frequently asked questions concerning moths and butterflies
Acknowledgments
Individuals and organizations who have contributed photos for this project and helped compile distribution records
References
Publications used to compile distribution records and aid in the construction of this resource, as well as those with general information about moths and butterflies
This resource is based on the following sources: 
Opler, Paul A.  1995.  Lepidoptera of North America: 1. Distribution of 
     silkmoths (Saturniidae) and hawkmoths (Sphingidae) of eastern North 
     America.  Contributions of the C. P. Gillette Insect Biodiversity Museum, 
     Department of Entomology, Colorado State University, Fort Collins.  
     Unpaginated.

Peigler, Richard S. and Paul A. Opler.  1993.  Moths of Western North America: 
     1. Distribution of Saturniidae of Western North America.  1993.  
     Contributions of the C. P. Gillette Insect Biodiversity Museum, Department 
     of Entomology, Colorado State University, Fort Collins.  Unpaginated.

Smith, Michael J.  1995.  Moths of Western North America: 2. Distribution 
     of Sphingidae of Western North America, revised.  Contributions of the 
     C. P. Gillette Insect Biodiversity Museum, Department of Entomology, 
     Colorado State University, Fort Collins.  Unpaginated.

Ferguson, Douglas C., Paul A. Opler, Michael J. Smith, and Julian P. Donahue.  
     2000.  Moths of Western North America: 3.  Distribution of Arctiidae of 
     Western North America. Part 1. Text, maps, and references.  Contributions 
     of the C. P. Gillette Insect Biodiversity Museum, Department of 
     Entomology, Colorado State University, Fort Collins.  Unpaginated.
In addition, the following publication has been used for naming conventions and should be considered the current authority for names of North American Saturniid moths: 
Tuskes, P. M., J. P. Tuttle, and M. M. Collins.  1996.  The wild silk moths of 
     North America.  Cornell University Press, Ithaca, N.Y. and London.  280pp.
This resource should be cited as: 
Ferguson, Douglas C., Chuck E. Harp, Paul A. Opler, Richard S. Peigler, Michael 
     Pogue, Jerry A. Powell, and Michael J. Smith.  1999.  Moths of North 
     America.  Jamestown, ND: Northern Prairie Wildlife Research Center Home 
     Page.  http://www.npwrc.usgs.gov/resource/distr/lepid/moths/mothsusa.htm 
     (Version 12DEC2003).
Disclaimer: Maps shown on this Web site were created initially by manually coding maps in the original publications and creating new maps from those data. The new maps were checked for errors, but there is a possibility that some errors remain. Current maps may also reflect new county records that have been established since the date of publication. Users of this Web site need to understand that data are more complete for some species and counties than others. Absence of a county record for a particular species may mean that 1) the species does not occur there, 2) the species is present but has not been detected and reported yet, or 3) a county record exists but has not yet been added to our database.
Persons interested in organizing or authoring atlases for specific moth groups should contact: 
     Dr. Paul A. Opler
     P.O. Box 2227
     Loveland, CO 80539