All species of Hemiptera (including 'Homoptera') known to occur in Canada and Alaska are listed and distribution by major political division given. Arrangement is by taxonomic hierarchy with cross-references from alphabetic lists of genera and species. Annotations identify introduced species and indicate pest status. A brief descriptive synopsis is included for principle taxonomic groups and references to available identification guides (keys, revisions, handbooks), catalogues, and bibliographies is provided for genera and higher taxa.