Identification, Images, & Information
For Insects, Spiders & Their Kin
For the United States & Canada

Subspecies Limenitis arthemis astyanax - Red-spotted Purple


Butterflies of North America (Kaufman Focus Guides)
By Jim P. Brock, Kenn Kaufman
Houghton Mifflin Co, 2003
Has computer-enhanced photographic illustrations on plain backgrounds. More species are illustrated per page than in Glassberg's Butterflies Through Binoculars series. This can make it somewhat easier to use than Glassberg's books. Illustrates all North American species, and is in a compact field guide format. The serious butterflier will want to have this in addition to Glassberg's works.

Florida's Fabulous Butterflies
By Thomas C. Emmel, Brian Kenney
World Publications, 1997

The Butterflies of West Virginia and Their Caterpillars
By Thomas J. Allen
University of Pittsburgh Press, 1998
I bought this book mainly for the caterpillar images.

National Audubon Society Field Guide to Butterflies
By Robert Michael Pyle
Knopf, 1981

Butterflies Through Binoculars: The East
By Jeffrey Glassberg
Oxford University Press, 1999
I grab this book first when I'm looking to identify a butterfly.

The Butterflies of North America: A Natural History and Field Guide
By James A. Scott
Stanford University Press, 1992

Annotated Taxonomic Checklist of the Lepidoptera of North America, North of Mexico
By Pohl, G. R. and S. R. Nanz (eds.)
Wedge Entomological Research Foundation, 2023
• Pohl, G. R. and S. R. Nanz (eds.), 2023. Annotated Taxonomic Checklist of the Lepidoptera of North America, North of Mexico. Wedge Entomological Research Foundation, Bakersfield, California, xiv + 580 pp. (order).

• Pohl & Nanz (eds.) (2023) checklist in spreadsheet (Excel) format (download).

Editors - When citing this work, please be sure to include the (eds.) after Pohl & Nanz to avoid confusion over authorship. If you have a copy of the book, it would be best to cite with the chapter author, i.e.

Descriptions of Some New Moths from Southern California
By Harrison G. Dyar
Proc. Ent. Soc. Washington 10: 52–60, 1908