2006年6月までの北米大陸のセセリチョう科を含む蝶類全種，６科234属800種1898亜種のカタログ．また無効としたタクサもできるだけ収録．100頁以上の文献目録，亜種レヴェルまでのチェックリスト，全タクサの索引．658ページの大冊．

This new publication includes an exhaustive synonymic catalogue of all names that have been applied to the butterflies of the United States of American and Canada, through June, 2006. Eight hundred species and 234 genera are included from the region, and extensive lists of excluded species and excluded names are provided. In addition, a complete bibliography to the butterflies of the region is included, together with a subspecies-level checklist and taxonomic index. The synonymic catalogue enumerates names from family to species, and ancillary details are provided for each, including the original description, original combination, type locality, deposition of type(s) when known, and annotations when pertinent to their placement within the catalogue. Over one hundred pages (of 600 estimated total pages) are dedicated to the bibliography, which is the most complete ever assembled for the region. This document, representing over 20 years of research by the author, is being published as Volume 40 of the Journal of Research on the Lepidoptera. The contents of this publication have been carefully peer-reviewed by leading authorities in the field (as noted in the acknowledgments). This is perhaps the most inclusive taxonomic catalogue ever published for a regional butterfly fauna, in that the synonymic catalogue, supplemental lists, subspecies-level checklist, index, and complete bibliography are all included together in the same volume.J