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Country/Region	Website Name and Link
	Common Butterflies of North America by USGS
Alabama	Butterflies of Alabama by Butterflies and Moths of North America
Alaska	Butterflies of Alaska by Butterflies and Moths of North America
Arizona	Butterflies of Arizona by Butterflies and Moths of North America
Arizona - Southeast	Butterflies of Southeastern Arizona by Bruce Walsh
Arizona - Southeast	Moths of Southeastern Arizona by Bruce Walsh
Arkansas	Butterflies of Arkansas by Butterflies and Moths of North America
Arkansas	Butterflies of Arkansas by Herschel Raney
California	Butterflies of California by Butterflies and Moths of North America
California - Central	Butterflies of Central California by Art Shapiro
California - Orange County	Butterflies of Orange County, CA by Peter J. Bryant
California - San Francisco Bay	Butterflies of San Francisco Bay by Wildlife of the San Francisco Bay Area
Colorado	Butterflies of Colorado by Butterflies and Moths of North America
Colorado - Northern	Butterflies of the Northern Colorado Front Range by Colorado Front Range Butterflies
Connecticut	Connecticut Butterflies Atlas Project
Connecticut	A Checklist of the Butterflies of Connecticut by Connecticut Butterfly Association
Connecticut	Butterflies of Connecticut by Butterflies and Moths of North America
Delaware	Butterflies of Delaware by Butterflies and Moths of North America
Delaware	Butterflies of Delaware by A Bird's Home
District of Columbia	Butterflies of District of Columbia by Butterflies and Moths of North America
District of Columbia	Butterflies Occuring in the DC Area by Richard H. Smith
Florida	Butterflies of Florida by Butterflies and Moths of North America
Florida	The Florida Butterfly Database
Florida	Florida Butterflies by Florida Museum of Natural History
Georgia	Moths and Butterflies of Georgia and Southeastern US by James K. Adams
Hawaii	Butterflies of Hawaii by Mr. Takashi Kumon
Illinois	Database of Illinois Lepidoptera
Iowa	Iowa State Entomology - Butterflies and Moths
Kansas	Butterfly and Moth Index by Jacalyn Loyd Goetz
Maryland	Common Butterflies and Their Larval Foods: Baltimore-Washington Area
Maryland	Butterflies - a Photo Gallery by Arlene Ripley
Michigan	Michigan Lepidoptera Survey
New Mexico	Butterfly and Moth - The Southwest by Victoria Oldham
New York City and North Jersey	The Mulberry Wing Online
North Carolina	Butterflies Found in North Carolina by Randy Emmitt
North Carolina	Butterflies of North Carolina by Randy L. Emmitt
Northeast	Butterflies of Northeastern North America by Bill Oehlke
Ohio	Butterflies of Washington County (OH) by Tom Moreno
Southeast	Furman University Lepidoptera Collection by John Snyder
Texas	Backyard Photographs - Central Texas
Texas	Butterflies of Texas
Texas	Big E's Digital Photos by Eric Isley
Texas	Butterflies of the Santa Ana National Wildlife Refuge
Utah	Butterflies of Utah by Alan Myrup
Wyoming	Butterflies of the Laramie Mountains, Wyoming by Richard L. Hardesty & Dennis R. Groothuis, MD