Checklist of Chalcidoidea and Mymarommatoidea (Hymenoptera) of Canada, Alaska and Greenland

A checklist of 1246 extant, described species, classified in 346 genera 18 families Chalcidoidea (Hymenoptera) are reported from Canada, Alaska (USA) and Greenland (Denmark) based on examined specimens published records up to December 31, 2020. Of the 1214 (in 345 families) listed 113 58 10 Alaska, 26 22 4 Greenland. The list includes 235 new species 53 generic for Canada (no family records). Forty-one records, Chalcididae Eurytomidae newly Alaska. No were found Two one genus) Mymarommatoidea Canada. For each distribution is tabulated by province or territory, except Newfoundland Labrador divided into island region Labrador. inclusion known results first comprehensive distributional entire northern part Nearctic region. brief review history cataloguing North America a comparison this with four checklists Palaearctic provided.