Artsdatabanken (Norwegian Biodiversity Information Centre) - https://artsdatabanken.no/ - Accessed August 2022

Finland: GBIF.org (19 August 2022) GBIF Occurrence Download https://doi.org/10.15468/dl.8eb8mp Sweden: GBIF.org (19 August 2022) GBIF Occurrence Download https://doi.org/10.15468/dl.mn5m3g Russia: GBIF.org (19 August 2022) GBIF Occurrence Download https://doi.org/10.15468/dl.73kcap Iceland: GBIF.org (21 August 2022) GBIF Occurrence Download https://doi.org/10.15468/dl.3sr3g7 Greenland: GBIF.org (21 August 2022) GBIF Occurrence Download https://doi.org/10.15468/dl.cbzetr Norway-Svalbard and Jan Mayen: GBIF.org (21 August 2022) GBIF Occurrence Download https://doi.org/10.15468/dl.zcppqa Gillespie M. A. K. and Coauthors, 2020b: Status and trends of terrestrial arthropod abundance and diversity in the North Atlantic region of the Arctic. Ambio, 49, 718–731, doi: 10.1007/s13280-019-01162-5

Canada:

Canadian Endangered Species Conservation Council. 2016. Wild Species 2015: The General Status of Species in Canada. National General Status Working Group. www.wildspecies.ca

Dumesh, S. and Sheffield, C.S., 2014. Photographic keys to the bees of the Northwest Territories, Canada. Department of Environment and Natural Resources, Government of the Northwest Territories. Yellowknife, NT. 257 pp. photographic_keys_and_atlas_for_bees_of_nwt_2016_final_0.pdf

Layberry, R. A., P. W. Hall, and J. D. Lafontaine. 1998: The butterflies of Canada. University of Toronto Press, Toronto. 280 pages.

Leif Richardson Bumble Bees of North America database: leifrichardson.org/bumble-bees-of-north-america.html

USA:

Alaska Center for Conservation Science. 2022. Seward Peninsula bees identified from USGS bycatch. unpublished data. University of Alaska Anchorage.

University of Alaska Museum. 2021. Arctos database. https://arctos.database.museum/collection/UAMObs:Ento. Accessed February 2021.

University of Alaska Museum. 2021. Arctos database. https://arctos.database.museum/collection/UAMObs:Ento. Accessed February 2021.

Philip, K.W., and C.D. Ferris. 2016. Butterflies of Alaska. Alaska Entomological Society. ISBN: 978-1-945170-60-7.

Rykken, J. 2017. Insect pollinators of Gates of the Arctic NPP: A preliminary survey of bees (Hymenoptera: Anthophila) and flower flies (Diptera: Syrphidae). Natural Resource Report NPS/GAAR/NRR—2017/1541. National Park Service, Fort Collins, Colorado.