Lepidoptera of North America, north of Mexico: an annotated list containing geographic ranges and host-plant records

We provide a list of all named Lepidoptera in the USA and Canada. Data include ranges, host plants, and synonymies. Information is annotated, including detailed range notes and host-plant records. Data are also provided in unique, easily filtered fields. The list establishes 12,541 native species, 325 exotic species, and 189 species straying occasionally into North America. In addition, we list 146 known but undescribed species, 112 species with uncertain or unresolved status, and 450 excluded species. 7423 of the described species in North America have host record data. Information is presented here as an Excel spreadsheet.