This site provides a comprehensive guide to the butterflies of the Ottawa-Gatineau region of Canada, with English and French common names, scientific names, and other useful information.
 
Most of these species can be found throughout Eastern Ontario and West Quebec.

For my expanded and improved Ontario website, follow this link: 
Butterflies of Ontario. 

NEW! For my Quebec website, follow this link: 
Butterflies of Quebec. 

Each butterfly species has its own page, and these pages are organized by family.  If you're unfamiliar with the wide range of butterflies found in our area, you might want to start at the Families page. This will give you an idea of how our butterflies are classified, but feel free to just dive in anywhere and explore!