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Issue: Vol. 5304 No. 1: 16 Jun. 2023
Type: Monograph
Published: 2023-06-16
DOI: 10.11646/zootaxa.5304.1.1
Page range: 1-95
Abstract views: 1876
PDF downloaded: 112

A checklist of the bees (Hymenoptera: Apoidea) of Minnesota

Department of Entomology; University of Minnesota; St. Paul; MN; USA 55108
Department of Entomology; Washington State University; Pullman; WA; USA 99163
Department of Entomology; University of Minnesota; St. Paul; MN; USA 55108
Minnesota Biological Survey; Minnesota Department of Natural Resources; St. Paul; MN; USA 55155
Minnesota Biological Survey; Minnesota Department of Natural Resources; St. Paul; MN; USA 55155
Insect Diversity Lab; Department of Biological Sciences; National University of Singapore; Singapore 117558
Conservation Research Institute; Cedarburg; WI; USA 53012
Department of Entomology; University of Minnesota; St. Paul; MN; USA 55108
National Fish and Wildlife Foundation; Washington; DC USA 20005
Department of Entomology; University of Minnesota; St. Paul; MN; USA 55108
Department of Entomology; University of Minnesota; St. Paul; MN; USA 55108
Hymenoptera Anthophila conservation Midwest pollinators

Abstract

Research studies and conservation actions aimed at improving conditions for bees require a basic understanding of which species are present in a given region. The US state of Minnesota occupies a unique geographic position at the confluence of eastern deciduous forests, northern boreal forests, and western tallgrass prairie, which has led to a diverse and unique bee fauna. In recent years there have been multiple ongoing bee-focused inventory and research projects in Minnesota. Combined with the historic specimens housed in the University of Minnesota Insect Collection and other regional collections, these furnished a wealth of specimens available to form the basis of a statewide checklist. Here, we present the first comprehensive checklist of Minnesota bee species, documenting a total of 508 species in 45 genera. County-level occurrence data is included for each species, and further information on distribution and rarity is included for species of regional or national interest. Some species have their taxonomy clarified, with Perdita citrinella Graenicher, 1910 syn. nov. recognized as a junior synonym of Perdita perpallida Cockerell, 1901, P. bequaerti syn. nov. recognized as a junior synonym of P. pallidipennis Graenicher, 1910 stat. nov., Anthidiellum boreale (Robertson, 1902) stat. nov. recognized as a full species, and Anthidiellium beijingense Portman & Ascher nom. nov. is proposed for A. boreale Wu to resolve the homonymy with A. boreale (Robertson). We further include a list of species that may occur in Minnesota and highlight 11 species occurring in the state that are considered non-native. Recent collecting efforts, as well as increased taxonomic attention paid to Minnesota bees, have resulted in 66 species that have only been documented in the last 10 years. As a first step in determining native bees of conservation concern, we document 38 species that have not been detected in the state during the last 50 years and discuss their conservation status, along with other species for which evidence of decline exists. The checklist of Minnesota bees will continue to grow and change with additional surveys and research studies. In particular, recent surveys have continued to detect new bee species, and many bee groups are in need of taxonomic revision, with the most recent revisions for many genera occurring decades ago. Overall, this checklist strengthens our understanding of the bees of Minnesota and the broader region, informs conservation assessments, and establishes a baseline for faunal change.

 

References

  1. Arduser, M. & Watkins, W. (2015) Report on bees collected at selected midwestern US Fish and Wildlife Refuges 2012 to 2013. Unpublished report to the US Fish and Wildlife Service. Available from: https://data.amerigeoss.org/uk/dataset/351f6e7a-9de4-4bac-b8e9-b96102bcbb4c (accessed 24 May 2023)
  2. Ascher, J.S. (2016) Collaborative databasing of North American bee collections within a global informatics network project. iDigBio Darwin Core Archive Recordset. Available from: https://www.idigbio.org/portal/recordsets/8919571f-205a-4aed-b9f2-96ccd0108e4c (accessed 30 January 2022)
  3. Ascher, J.S., Kornbluth, S. & Goelet, R.G. (2014) Bees (Hymenoptera: Apoidea: Anthophila) of Gardiners Island, Suffolk County, New York. Northeastern Naturalist, 21, 47–71. https://doi.org/10.1656/045.021.0105 DOI: https://doi.org/10.1656/045.021.0105
  4. Ascher, J.S. & Pickering, J. (2022) Discover Life bee species guide and world checklist (Hymenoptera: Apoidea: Anthophila). Draft 56, 21 August 2022. Available from: http://www.discoverlife.org/mp/20q?guide=Apoidea_species (accessed 30 October 2022)
  5. Ayala, R. & Griswold, T. (2012) Two new species of the bee genus Peponapis, with a key to the North and Central American species (Hymenoptera: Apidae: Eucerini). Revista Mexicana de Biodiversidad, 83, 396–406. https://doi.org/10.22201/ib.20078706e.2012.2.1247 DOI: https://doi.org/10.22201/ib.20078706e.2012.2.1247
  6. Baker, J.R. (1975) Taxonomy of five nearctic subgenera of Coelioxys (Hymenoptera: Megachilidae). University of Kansas Science Bulletin, 50, 649–730.
  7. Bartomeus, I., Ascher, J.S., Gibbs, J., Danforth, B.N., Wagner, D.L., Hedtke, S.M. & Winfree, R. (2013) Historical changes in northeastern US bee pollinators related to shared ecological traits. Proceedings of the National Academy of Sciences, 110, 4656–4660. https://doi.org/10.1073/pnas.1218503110 DOI: https://doi.org/10.1073/pnas.1218503110
  8. Batra, S.W.T. (1979) Osmia cornifrons and Pithitis smaragdula, two Asian bees introduced into the United States for crop pollination. In: Caron, D.M. (Ed.), Proceedings of the IVth International Symposium on Pollination. Maryland Agricultural Experimental Station, College Park, Maryland, pp. 307–312.
  9. Blair, B.H. (1935) The bees of the group Dieunomia. Journal of the New York Entomological Society, 43, 201–215.
  10. Bohart, G.E. (1970) Commercial production and management of wild bees—A new entomological industry. Bulletin of the Entomological Society of America, 16, 8–9. https://doi.org/10.1093/besa/16.1.8 DOI: https://doi.org/10.1093/besa/16.1.8
  11. Boone, M.L., Evans, E., Wolf, A., Minser, H., Watson, J. & Smith, T.A. (2022) Notes from rusty patched bumble bee (Bombus affinis Cresson) nest observations. Insect Conservation and Diversity, 15, 380–384. https://doi.org/10.1111/icad.12564 DOI: https://doi.org/10.1111/icad.12564
  12. Bossert, S., Copeland, R.S., Sless, T.J.L., Branstetter, M.G., Gillung, J.P., Brady, S.G., Danforth, B.N., Policarová, J. & Straka, J. (2020) Phylogenomic and morphological reevaluation of the bee tribes Biastini, Neolarrini, and Townsendiellini (Hymenoptera: Apidae) with description of three new species of Schwarzia. Insect Systematics and Diversity, 4, 1–29. https://doi.org/10.1093/isd/ixaa013 DOI: https://doi.org/10.1093/isd/ixaa013
  13. Bossert, S., Wood, T.J., Patiny, S., Michez, D., Almeida, E.A.B., Minckley, R.L., Packer, L., Neff, J.L., Copeland, R.S., Straka, J., Pauly, A., Griswold, T., Brady, S.G., Danforth, B.N. & Murray, E.A. (2022) Phylogeny, biogeography and diversification of the mining bee family Andrenidae. Systematic Entomology, 47, 283–302. https://doi.org/10.1111/syen.12530 DOI: https://doi.org/10.1111/syen.12530
  14. Bouseman, J.K. & LaBerge, W.E. (1978) A revision of the bees of the genus Andrena of the Western Hemisphere. Part IX. Subgenus Melandrena. Transactions of the American Entomological Society, 104, 275–389.
  15. Broemeling, D.K. (1988) A revision of the Nomada subgenus Nomadita of North America (Hymenoptera: Anthophoridae). Pan-Pacific Entomologist, 64, 321–344.
  16. Broemeling, D.K. & Moalif, A.S. (1988) A revision of the Nomada subgenus Pachynomada (Hymenoptera: Anthophoridae). Pan-Pacific Entomologist, 64, 201–227.
  17. Brokaw, J., Portman, Z.M., Bruninga-Socolar, B. & Cariveau, D.P. (2023) Prescribed fire increases the number of ground-nesting bee nests in tallgrass prairie remnants. Insect Conservation and Diversity, 16, 355–367. https://doi.org/10.1111/icad.12628 DOI: https://doi.org/10.1111/icad.12628
  18. Brooks, R.W. (1983) Systematics and bionomics of Anthophora: The bomboides group and species groups of the New World, Hymenoptera, Apoidea, Anthophoridae. University of California Publications in Entomology, 98, 1–86.
  19. Brooks, R.W. & Griswold, T.L. (1988) A key to the species of Trachusa subgenus Heteranthidium with descriptions of new species from México (Hymenoptera: Megachilidae; Anthidiini). Journal of the Kansas Entomological Society, 61, 332–346.
  20. Buck, M., Paiero, S.M. & Marshall, S.A. (2005) New records of native and introduced Aculeate Hymenoptera from Ontario, with keys to eastern Canadian species of Cerceris (Crabronidae) and eastern nearctic species of Chelostoma (Megachilidae). Journal of the Entomological Society of Ontario, 136, 37–52.
  21. Buckner, M.A. & Danforth, B.N. (2022) Climate-driven range shifts of a rare specialist bee, Macropis nuda (Melittidae), and its host plant, Lysimachia ciliata (Primulaceae). Global Ecology and Conservation, 37, e02180. https://doi.org/10.1016/j.gecco.2022.e02180 DOI: https://doi.org/10.1016/j.gecco.2022.e02180
  22. Burkle, L.A., Marlin, J.C. & Knight, T.M. (2013) Plant-pollinator interactions over 120 years: Loss of species, co-occurrence, and function. Science, 339, 1611–1615. https://doi.org/10.1126/science.1232728 DOI: https://doi.org/10.1126/science.1232728
  23. Bzdyk, E.L. (2012) A revision of the Megachile subgenus Litomegachile Mitchell with an illustrated key and description of a new species (Hymenoptera, Megachilidae, Megachilini). ZooKeys, 221, 31–61. https://doi.org/10.3897/zookeys.221.3234 DOI: https://doi.org/10.3897/zookeys.221.3234
  24. Cameron, S.A., Lozier, J.D., Strange, J.P., Koch, J.B., Cordes, N., Solter, L.F. & Griswold, T.L. (2011) Patterns of widespread decline in North American bumble bees. Proceedings of the National Academy of Sciences, 108, 662–667. https://doi.org/10.1073/pnas.1014743108 DOI: https://doi.org/10.1073/pnas.1014743108
  25. Cane, J. (2003) Exotic non-social bees (Hymenoptera: Apoidea) in North America: Ecological implications. In: Strickler, K. & Cane, J.H. (Eds.), For Nonnative Crops: Whence Pollinators of the Future. Entomological Society of America, Lanham, Maryland, pp. 113–126. DOI: https://doi.org/10.4182/ZSGH5376.2003.113
  26. Carril, O.M., Griswold, T., Haefner, J. & Wilson, J.S. (2018) Wild bees of Grand Staircase-Escalante National Monument: Richness, abundance, and spatio-temporal beta-diversity. PeerJ, 2018, 1–29. https://doi.org/10.7717/peerj.5867 DOI: https://doi.org/10.7717/peerj.5867
  27. Cockerell, T.D.A. (1901) New and little-known bees from Nebraska. Entomologist, 34, 190–191. https://doi.org/10.4039/Ent3445-2 DOI: https://doi.org/10.4039/Ent3445-2
  28. Cockerell, T.D.A. (1922) Bees of the genus Perdita from the western states. American Museum Novitates, 33, 1–15. https://doi.org/10.5479/si.00963801.60-2413.1 DOI: https://doi.org/10.5479/si.00963801.60-2413.1
  29. Coelho, B.W.T. (2004) A review of the bee genus Augochlorella (Hymenoptera: Halictidae: Augochlorini). Systematic Entomology, 29, 282–323. https://doi.org/10.1111/j.0307-6970.2004.00243.x DOI: https://doi.org/10.1111/j.0307-6970.2004.00243.x
  30. Colla, S.R., Ascher, J.S., Arduser, M., Cane, J., Deyrup, M., Droege, S., Gibbs, J., Griswold, T., Hall, H.G., Henne, C., Neff, J., Jean, R.P., Rightmyer, M.G., Sheffield, C., Veit, M. & Wolf, A. (2012a) Documenting persistence of most eastern North American bee species (Hymenoptera: Apoidea: Anthophila) to 1990-2009. Journal of the Kansas Entomological Society, 1, 14–22. https://doi.org/10.2317/JKES110726.1 DOI: https://doi.org/10.2317/JKES110726.1
  31. Colla, S.R., Gadallah, F., Richardson, L., Wagner, D. & Gall, L. (2012b) Assessing declines of North American bumble bees (Bombus spp.) using museum specimens. Biodiversity and Conservation, 21, 3585–3595. https://doi.org/10.1007/s10531-012-0383-2 DOI: https://doi.org/10.1007/s10531-012-0383-2
  32. Colla, S.R., Otterstatter, M.C., Gegear, R.J. & Thomson, J.D. (2006) Plight of the bumble bee: Pathogen spillover from commercial to wild populations. Biological Conservation, 129, 461–467. https://doi.org/10.1016/j.biocon.2005.11.013 DOI: https://doi.org/10.1016/j.biocon.2005.11.013
  33. Crawford, J.C. (1932) New North American bees. Proceedings of the Entomological Society of Washington, 34, 69–78.
  34. Daly, H.V. (1973) Bees of the genus Ceratina in America North of Mexico (Hymenoptera: Apoidea). University of California Publications in Entomology, 74, 1–113.
  35. Decker, B.L., Bryan, C., Kassim, L., Soley, N., Sipes, S.D., Arduser, M. & Harmon-Threatt, A.N. (2020) Preliminary Illinois bee species checklist (Hymenoptera: Apoidea) and use of museum collections. Journal of the Kansas Entomological Society, 93, 34–74. https://doi.org/10.2317/0022-8567-93.1.34 DOI: https://doi.org/10.2317/0022-8567-93.1.34
  36. Donovan, B.J. (1977) A revision of North American bees of the subgenus Cnemidandrena (Hymenoptera: Andrenidae). University of California Publications in Entomology, 81, 1–107.
  37. Dorchin, A., López-Uribe, M.M., Praz, C.J., Griswold, T. & Danforth, B.N. (2018) Phylogeny, new generic-level classification, and historical biogeography of the Eucera complex (Hymenoptera: Apidae). Molecular Phylogenetics and Evolution, 119, 81–92. https://doi.org/10.1016/j.ympev.2017.10.007 DOI: https://doi.org/10.1016/j.ympev.2017.10.007
  38. Droege, S., Rightmyer, M.G., Sheffield, C.S. & Brady, S.G. (2010) New synonymies in the bee genus Nomada from North America (Hymenoptera: Apidae). Zootaxa, 2661 (1), 1–32. https://doi.org/10.11646/zootaxa.2661.1.1 DOI: https://doi.org/10.11646/zootaxa.2661.1.1
  39. Dumesh, S. & Sheffield, C.S. (2012) Bees of the genus Dufourea Lepeletier (Hymenoptera: Halictidae: Rophitinae) of Canada. Canadian Journal of Arthropod Identification, 20, 1–36. https://doi.org/10.3752/cjai.2012.20 DOI: https://doi.org/10.3752/cjai.2012.20
  40. Edens-Meier, R., Arduser, M., Camilo, G.R., Bernhardt, P. & Ren, Z.X. (2020) Breeding systems and pollination ecology of Uvularia grandiflora (Colchicaceae). Journal of the Torrey Botanical Society, 147, 38–48. https://doi.org/10.3159/TORREY-D-19-00015.1 DOI: https://doi.org/10.3159/TORREY-D-19-00015.1
  41. Eickwort, G.C. (1981) Two European species of Chelostoma established in New York State (Hymenoptera: Megachilidae). Psyche, 87, 399–405. https://doi.org/10.1155/1980/24124 DOI: https://doi.org/10.1155/1980/24124
  42. Evans, D.L. (1972) A revision of the subgenus Holonomada of the genus Nomada (Hymenoptera: Anthophoridae). Wasmann Journal of Biology, 30, 1–34.
  43. Evans, E., Smart, M., Cariveau, D. & Spivak, M. (2018) Wild, native bees and managed honey bees benefit from similar agricultural land uses. Agriculture, Ecosystems and Environment, 268, 162–170. https://doi.org/10.1016/j.agee.2018.09.014 DOI: https://doi.org/10.1016/j.agee.2018.09.014
  44. Evans, F.C. (1986) Bee-flower interactions on an old field in southeastern Michigan. In: Clambey, G.K. & Pembley, R.H. (Eds.), The prairie: past, present and future. Proceedings of the ninth North American Prairie Conference. Tri-College University Center for Environmental Studies, Fargo, North Dakota, pp. 103–109.
  45. Gardner, J. & Gibbs, J. (2020) The “red-tailed” Lasioglossum (Dialictus) (Hymenoptera: Halictidae) of the western Nearctic. European Journal of Taxonomy, 725, 1–242. https://doi.org/10.5852/ejt.2020.725.1167 DOI: https://doi.org/10.5852/ejt.2020.725.1167
  46. Gardner, J. & Gibbs, J. (2022) New and little-known Canadian Lasioglossum (Dialictus) (Hymenoptera: Halictidae) and an emended key to species. Canadian Entomologist, 154, e3. https://doi.org/10.4039/tce.2021.47 DOI: https://doi.org/10.4039/tce.2021.47
  47. Gardner, J. & Gibbs, J. (2023) Revision of the Nearctic species of the Lasioglossum (Dialictus) gemmatum species complex (Hymenoptera: Halictidae). European Journal of Taxonomy, 858, 1–222. https://doi.org/10.5852/ejt.2023.858.2041 DOI: https://doi.org/10.5852/ejt.2023.858.2041
  48. Gardner, J.D. & Spivak, M. (2014) A survey and historical comparison of the Megachilidae (Hymenoptera: Apoidea) of Itasca State Park, Minnesota. Annals of the Entomological Society of America, 107, 983–993. https://doi.org/10.1603/AN14023 DOI: https://doi.org/10.1603/AN14023
  49. Gibbs, J. (2010) Revision of the metallic species of Lasioglossum (Dialictus) in Canada (Hymenoptera, Halictidae, Halictini). Zootaxa, 2591 (1), 1–382. https://doi.org/10.11646/zootaxa.2591.1.1 DOI: https://doi.org/10.11646/zootaxa.2591.1.1
  50. Gibbs, J. (2011) Revision of the metallic Lasioglossum (Dialictus) of eastern North America (Hymenoptera: Halictidae: Halictini). Zootaxa, 3073 (1), 1–216. https://doi.org/10.11646/zootaxa.3073.1.1 DOI: https://doi.org/10.11646/zootaxa.3073.1.1
  51. Gibbs, J., Ascher, J.S., Rightmyer, M.G. & Isaacs, R. (2017) The bees of Michigan (Hymenoptera: Apoidea: Anthophila), with notes on distribution, taxonomy, pollination, and natural history. Zootaxa, 4352 (1), 1–160. https://doi.org/10.11646/zootaxa.4352.1.1 DOI: https://doi.org/10.11646/zootaxa.4352.1.1
  52. Gibbs, J., Dumesh, S. & Griswold, T.L. (2014) Bees of the genera Dufourea and Dieunomia of Michigan (Hymenoptera: Apoidea: Halictidae), with a key to the Dufourea of the eastern United States. Journal of Melittology, 29, 1–15. https://doi.org/10.17161/jom.v0i29.4652 DOI: https://doi.org/10.17161/jom.v0i29.4652
  53. Gibbs, J., Hanuschuk, E., Miller, R., Dubois, M., Martini, M., Robinson, S., Nakagawa, P., Sheffield, C.S., Cardinal, S. & Onuferko, T.M. (2023) A checklist of the bees (Hymenoptera: Apoidea) of Manitoba, Canada. Canadian Entomologist, 155, e3. https://doi.org/10.4039/tce.2022.45 DOI: https://doi.org/10.4039/tce.2022.45
  54. Gibbs, J., Packer, L., Dumesh, S. & Danforth, B.N. (2013) Revision and reclassification of Lasioglossum (Evylaeus), L. (Hemihalictus) and L. (Sphecodogastra) in eastern North America (Hymenoptera: Apoidea: Halictidae). Zootaxa, 3672 (1), 1–116. https://doi.org/10.11646/zootaxa.3672.1.1 DOI: https://doi.org/10.11646/zootaxa.3672.1.1
  55. Giles, V. & Ascher, J.S. (2006) A survey of the bees of the Black Rock Forest Preserve, New York (Hymenoptera: Apoidea). Journal of Hymenoptera Research, 15, 208–231.
  56. Gonzalez, V.H. & Griswold, T.L. (2013) Wool carder bees of the genus Anthidium in the Western Hemisphere (Hymenoptera: Megachilidae): Diversity, host plant associations, phylogeny, and biogeography. Zoological Journal of the Linnean Society, 168, 221–425. https://doi.org/10.1111/zoj.12017 DOI: https://doi.org/10.1111/zoj.12017
  57. Gonzalez, V.H., Gustafson, G.T. & Engel, M.S. (2019) Morphological phylogeny of Megachilini and the evolution of leaf-cutter behavior in bees (Hymenoptera: Megachilidae). Journal of Melittology, 85, 1–123. DOI: https://doi.org/10.17161/jom.v0i85.11541
  58. Goulson, D., Nicholls, E., Botías, C. & Rotheray, E.L. (2015) Bee declines driven by combined stress from parasites, pesticides, and lack of flowers. Science, 347, 1255957. https://doi.org/10.1126/science.1255957 DOI: https://doi.org/10.1126/science.1255957
  59. Graenicher, S. (1910) Wisconsin bees—new and little-known species. Canadian Entomologist, 42, 101–104. https://doi.org/10.4039/Ent42101-4 DOI: https://doi.org/10.4039/Ent42101-4
  60. Graenicher, S. (1935) Bee-fauna and vegetation of Wisconsin. Annals of the Entomological Society of America, 28, 285–310. https://doi.org/10.1093/aesa/28.2.285 DOI: https://doi.org/10.1093/aesa/28.2.285
  61. Grigarick, A.A. & Stange, L.A. (1968) The pollen-collecting bees of the Anthidiini of California. Bulletin of the California Insect Survey, 9, 1–113.
  62. Griswold, T. & Rightmyer, M.G. (2017) A revision of the subgenus Osmia (Diceratosmia), with descriptions of four new species (Hymenoptera, Megachilidae). Zootaxa, 4337 (1), 1–37. https://doi.org/10.11646/zootaxa.4337.1.1 DOI: https://doi.org/10.11646/zootaxa.4337.1.1
  63. Grundel, R., Jean, R.P., Frohnapple, K.J., Gibbs, J., Glowacki, G.A. & Pavlovic, N.B. (2011) A survey of bees (Hymenoptera: Apoidea) of the Indiana Dunes and Northwest Indiana, USA. Journal of the Kansas Entomological Society, 84, 105–138. https://doi.org/10.2317/jkes101027.1 DOI: https://doi.org/10.2317/JKES101027.1
  64. Guzman, L.M., Johnson, S.A., Mooers, A.O. & Gonigle, L.K.M. (2021) Using historical data to estimate bumble bee occurrence: Variable trends across species provide little support for community-level declines. Biological Conservation, 257, 109141. https://doi.org/10.1016/j.biocon.2021.109141 DOI: https://doi.org/10.1016/j.biocon.2021.109141
  65. Hatfield, R., Colla, S., Jepsen, S., Richardson, L.L., Thorp, R. & Jordan, S.F. (2015) IUCN Assessments for North American Bombus spp. for the North American IUCN Bumble Bee Specialist Group. Xerces Society for Invertebrate Conservation, Portland, Oregon, 56 pp.
  66. Hurd, P.D. (1961) A synopsis of the carpenter bees belonging to the subgenus Xylocopoides Michener (Hymenoptera; Apoidea). Transactions of the American Entomological Society, 87, 247–257.
  67. Hurd, P.D. (1979) Superfamily Apoidea. In: Krombein, K.V., Hurd, P.D., Smith, D.R. & Burks, B.D. (Eds.), Catalog of Hymenoptera in America North of Mexico. Vol. 2. Smithsonian Institution Press, Washington, D.C., pp. 1741–2209.
  68. Hurd, P.D. & Linsley, E.G. (1951) The Melectine bees of California (Hymenoptera: Anthophoridae). Bulletin of the California Insect Survey, 1, 119–135.
  69. Hurd, P.D. & Linsley, E.G. (1964) The squash and gourd bees—genera Peponapis Robertson and Xenoglossa Smith—inhabiting America north of Mexico (Hymenoptera: Apoidea). Hilgardia, 35, 375–477. https://doi.org/10.3733/hilg.v35n15p375 DOI: https://doi.org/10.3733/hilg.v35n15p375
  70. Hurd, P.D. & Linsley, E.G. (1972) Parasitic bees of the genus Holcopasites Ashmead (Hymenoptera: Apoidea). Smithsonian Contributions to Zoology, 114, 1–40. https://doi.org/10.5479/si.00810282.114 DOI: https://doi.org/10.5479/si.00810282.114
  71. iNaturalist (2022) iNaturalist Research-grade Observations. iNaturalist.org. Occurrence dataset. Accessed via GBIF.org. Available from: https://www.gbif.org/dataset/50c9509d-22c7-4a22-a47d-8c48425ef4a7 (accessed 1 November 2022) https://doi.org/10.15468/ab3s5x
  72. Jackson, H.M., Johnson, S.A., Morandin, L.A., Richardson, L.L., Guzman, L.M. & M’Gonigle, L.K. (2022) Climate change winners and losers among North American bumblebees. Biology letters, 18, 20210551. https://doi.org/10.1098/rsbl.2021.0551 DOI: https://doi.org/10.1098/rsbl.2021.0551
  73. Jamieson, M.A., Carper, A.L., Wilson, C.J., Scott, V.L. & Gibbs, J. (2019) Geographic biases in bee research limits understanding of species distribution and response to anthropogenic disturbance. Frontiers in Ecology and Evolution, 7, 1–8. https://doi.org/10.3389/fevo.2019.00194 DOI: https://doi.org/10.3389/fevo.2019.00194
  74. Kilpatrick, S.K., Gibbs, J., Mikulas, M.M., Spichiger, S.-E., Ostiguy, N., Biddinger, D.J. & López-Uribe, M.M. (2021) Corrigenda: An updated checklist of the bees (Hymenoptera, Apoidea, Anthophila) of Pennsylvania, United States of America. Journal of Hymenoptera Research, 77: 1–86. Journal of Hymenoptera Research, 81, 181–189. https://doi.org/10.3897/jhr.81.62634 DOI: https://doi.org/10.3897/jhr.81.62634
  75. Kilpatrick, S.K., Gibbs, J., Mikulas, M.M., Spichiger, S.E., Ostiguy, N., Biddinger, D.J. & López-Uribe, M.M. (2020) An updated checklist of the bees (Hymenoptera, Apoidea, Anthophila) of Pennsylvania, United States of America. Journal of Hymenoptera Research, 77, 1–86. https://doi.org/10.3897/JHR.77.49622 DOI: https://doi.org/10.3897/jhr.77.49622.suppl10
  76. Kuhlmann, M. & Ascher, J.S. (2010) Two new synonymies of eastern North American Colletes Latr. species described from Japan (Hymenoptera: Colletidae). Entomological News, 121, 325–328. https://doi.org/10.3157/021.121.0404 DOI: https://doi.org/10.3157/021.121.0404
  77. LaBerge, W.E. (1956a) A revision of the bees of the genus Melissodes in North and Central America. Part I. (Hymenoptera, Apidae). University of Kansas Science Bulletin, 37, 911–1194. https://doi.org/10.5962/bhl.part.24549 DOI: https://doi.org/10.5962/bhl.part.24549
  78. LaBerge, W.E. (1956b) A revision of the bees of the genus Melissodes in North and Central America. Part II (Hymenoptera, Apidae). University of Kansas Science Bulletin, 38, 533–578.
  79. LaBerge, W.E. (1961) A revision of the bees of the genus Melissodes in North and Central America. Part III (Hymenoptera, Apidae). University of Kansas Science Bulletin, 42, 283–663. https://doi.org/10.5962/bhl.part.9821 DOI: https://doi.org/10.5962/bhl.part.9821
  80. LaBerge, W.E. (1967) A revision of the bees of the genus Andrena of the Western Hemisphere. Part I. Callandrena. (Hymenoptera: Andrenidae). Bulletin of the University of Nebraska State Museum, 7, 1–316.
  81. LaBerge, W.E. (1969) A revision of the bees of the genus Andrena of the Western Hemisphere. Part II. Plastandrena, Aporandrena, Charitandrena. Transactions of the American Entomological Society, 95, 1–47.
  82. LaBerge, W.E. (1971) A revision of the bees of the genus Andrena of the Western Hemisphere. Part IV. Scrapteropsis, Xiphandrena and Rhaphandrena. Transactions of the American Entomological Society, 97, 441–520.
  83. LaBerge, W.E. (1973) A revision of the bees of the genus Andrena of the Western Hemisphere. Part VI. Subgenus Trachandrena. Transactions of the American Entomological Society, 99, 235–371.
  84. LaBerge, W.E. (1977) A revision of the bees of the genus Andrena of the Western Hemisphere. Part VIII. Subgenus Thysandrena, Dasyandrena, Psammandrena, Rhacandrena, Euandrena, Oxyandrena. Transactions of the American Entomological Society, 103, 1–143.
  85. LaBerge, W.E. (1980) A revision of the bees of the genus Andrena of the Western Hemisphere. Part X. Subgenus Andrena. Transactions of the American Entomological Society, 106, 395–525.
  86. LaBerge, W.E. (1985) A revision of the bees of the genus Andrena of the Western Hemisphere. Part XI. Minor subgenera and subgeneric key. Transactions of the American Entomological Society, 111, 441–567.
  87. LaBerge, W.E. (1986) A revision of the bees of the genus Andrena of the Western Hemisphere. Part XII. Subgenera Leucandrena, Ptilandrena, Scoliandrena and Melandrena. Transactions of the American Entomological Society, 112, 191–248.
  88. LaBerge, W.E. (1989) A revision of the bees of the genus Andrena of the Western Hemisphere. Part XIII. Subgenera Simandrena and Taeniandrena. Transactions of the American Entomological Society, 115, 1–56.
  89. LaBerge, W.E. (2001) Revision of the bees of the genus Tetraloniella in the New World (Hymenoptera: Apidae). Illinois Natural History Survey Bulletin, 36, 67–102. https://doi.org/10.21900/j.inhs.v36.125 DOI: https://doi.org/10.21900/j.inhs.v36.125
  90. LaBerge, W.E. & Ribble, D.W. (1972) A revision of the bees of the genus Andrena of the Western Hemisphere. Part V. Gonandrena, Geissandrena, Parandrena, Pelicandrena. Transactions of the American Entomological Society, 98, 271–358. https://doi.org/10.1007/s11829-011-9163-2 DOI: https://doi.org/10.1007/s11829-011-9163-2
  91. LaBerge, W.E. & Ribble, D.W. (1975) A revision of the bees of the genus Andrena of the Western Hemisphere. Part VII. Subgenus Euandrena. Transactions of the American Entomological Society, 101, 371–446.
  92. Lane, I.G., Herron‐Sweet, C.R., Portman, Z.M. & Cariveau, D.P. (2020) Floral resource diversity drives bee community diversity in prairie restorations along an agricultural landscape gradient. Journal of Applied Ecology, 57, 2010–2018. https://doi.org/10.1111/1365-2664.13694 DOI: https://doi.org/10.1111/1365-2664.13694
  93. Lane, I.G., Portman, Z.M., Herron‐Sweet, C.R., Pardee, G.L. & Cariveau, D.P. (2022) Differences in bee community composition between restored and remnant prairies are more strongly linked to forb community differences than landscape differences. Journal of Applied Ecology, 59, 129–140. https://doi.org/10.1111/1365-2664.14035 DOI: https://doi.org/10.1111/1365-2664.14035
  94. Larkin, L.L., Neff, J.L. & Simpson, B.B. (2006) Phylogeny of the Callandrena subgenus of Andrena (Hymenoptera: Andrenidae) based on mitochondrial and nuclear DNA data: polyphyly and convergent evolution. Molecular Phylogenetics and Evolution, 38, 330–343. https://doi.org/10.1016/j.ympev.2005.10.003 DOI: https://doi.org/10.1016/j.ympev.2005.10.003
  95. Laverty, T.M. & Harder, L.D. (1988) The bumble bees of eastern Canada. The Canadian Entomologist, 120, 965–987. https://doi.org/10.4039/Ent120965-11 DOI: https://doi.org/10.4039/Ent120965-11
  96. LeCroy, K.A., Savoy-Burke, G., Carr, D.E., Delaney, D.A. & Roulston, T.H. (2020) Decline of six native mason bee species following the arrival of an exotic congener. Scientific Reports, 10, 18745. https://doi.org/10.1038/s41598-020-75566-9 DOI: https://doi.org/10.1038/s41598-020-75566-9
  97. Leone, J.B., Pennarola, N.P., Larson, J.L., Oberhauser, K. & Larson, D.L. (2022) Divergent responses of butterflies and bees to burning and grazing management in tallgrass prairies. Ecology and evolution, 12, 1–32. https://doi.org/10.1002/ece3.9532 DOI: https://doi.org/10.1002/ece3.9532
  98. Lhomme, P., Williams, S.D., Ghisbain, G., Martinet, B., Gérard, M. & Hines, H.M. (2021) Diversification pattern of the widespread Holarctic cuckoo bumble bee, Bombus flavidus (Hymenoptera: Apidae): the East Side story. Insect Systematics and Diversity, 5, 1–15. https://doi.org/10.1093/isd/ixab007 DOI: https://doi.org/10.1093/isd/ixab007
  99. Litman, J.R., Fateryga, A. V, Griswold, T.L., Aubert, M., Proshchalykin, M.Y., Le Divelec, R., Burrows, S. & Praz, C.J. (2021) Paraphyly and low levels of genetic divergence in morphologically distinct taxa: revision of the Pseudoanthidium scapulare complex of carder bees (Apoidea: Megachilidae: Anthidiini). Zoological Journal of the Linnean Society, 195, 1287–1337. https://doi.org/10.1093/zoolinnean/zlab062 DOI: https://doi.org/10.1093/zoolinnean/zlab062
  100. MacIvor, J.S., de Keyzer, C.W., Marshall, M.S., Thurston, G.S. & Onuferko, T.M. (2022) Establishment of the non-native horned-face bee Osmia cornifrons and the taurus mason bee Osmia taurus (Hymenoptera: Megachilidae) in Canada. PeerJ, 10, 1–19. https://doi.org/10.7717/peerj.14216 DOI: https://doi.org/10.7717/peerj.14216
  101. MacPhail, V.J., Richardson, L.L. & Colla, S.R. (2019) Incorporating citizen science, museum specimens, and field work into the assessment of extinction risk of the American Bumble bee (Bombus pensylvanicus De Geer 1773) in Canada. Journal of Insect Conservation, 23, 597–611. https://doi.org/10.1007/s10841-019-00152-y DOI: https://doi.org/10.1007/s10841-019-00152-y
  102. Martens, A.P., Johnson, P.J., Beckendorf, E.A., Hesler, L.S., Daniels, J.D. & Roeder, K.A. (2022) A checklist of South Dakota bumble bees (Hymenoptera, Apidae). Journal of Hymenoptera Research, 94, 271–286. https://doi.org/10.3897/jhr.94.94584 DOI: https://doi.org/10.3897/jhr.94.94584
  103. McGinley, R.J. (1986) Studies of Halictinae (Apoidea: Halictidae), I: Revision of new world Lasioglossum Curtis. Smithsonian Contributions to Zoology, 429, 1–294. https://doi.org/10.5479/si.00810282.429 DOI: https://doi.org/10.5479/si.00810282.429
  104. McGinley, R.J. (2003) Studies of Halictinae (Apoidea: Halictidae) II: Revision of Sphecodogastra Ashmead, floral specialists of Onagraceae. Smithsonian Contributions to Zoology, 610, 1–55. https://doi.org/10.5479/si.00810282.610 DOI: https://doi.org/10.5479/si.00810282.610
  105. Michener, C.D. (1938) American bees of the genus Heriades. Annals of the Entomological Society of America, 31, 514–531. https://doi.org/10.1093/aesa/31.4.514 DOI: https://doi.org/10.1093/aesa/31.4.514
  106. Michener, C.D. (1939) A revision of the genus Ashmeadiella. American Midland Naturalist, 22, 1–84. https://doi.org/10.2307/2420397 DOI: https://doi.org/10.2307/2420397
  107. Michener, C.D. (1947) A Revision of the American species of Hoplitis (Hymenoptera, Megachilidae). Bulletin of the American Museum of Natural History, 89, 257–318.
  108. Michez, D. & Patiny, S. (2005) World revision of the oil-collecting bee genus Macropis Panzer 1809 (Hymenoptera: Apoidea: Melittidae) with a description of a new species from Laos. Annales de la Société entomologique de France, International Journal of Entomology, New Series, 41, 15–28. https://doi.org/10.1080/00379271.2005.10697439 DOI: https://doi.org/10.1080/00379271.2005.10697439
  109. Milam, J., Johnson, D.E., Andersen, J.C., Fassler, A.B., Narango, D.L. & Elkinton, J.S. (2020) Validating morphometrics with DNA barcoding to reliably separate three cryptic species of Bombus Cresson (Hymenoptera: Apidae). Insects, 11, 1–20. https://doi.org/10.3390/insects11100669 DOI: https://doi.org/10.3390/insects11100669
  110. Miller, S.R., Gaebel, R., Mitchell, R.J. & Arduser, M. (2002) Occurrence of two species of old world bees, Anthidium manicatum and A. oblongatum (Apoidea: Megachilidae), in northern Ohio and southern Michigan. Great Lakes Entomologist, 35, 65–69.
  111. Milliron, H.E. (1971) A monograph of the western hemisphere bumblebees (Hymenoptera: Apidae; Bombinae). I. Memoirs of the Entomological Society of Canada, 103, 1–80. https://doi.org/10.4039/entm10382fv DOI: https://doi.org/10.4039/entm10382fv
  112. Milliron, H.E. (1973a) A monograph of the western hemisphere bumblebees (Hymenoptera: Apidae; Bombinae). III. Memoirs of the Entomological Society of Canada, 91, 239–333. https://doi.org/10.4039/entm10591fv DOI: https://doi.org/10.4039/entm10591fv
  113. Milliron, H.E. (1973b) A monograph of the western hemisphere bumblebees (Hymenoptera: Apidae: Bombinae). II. The genus Megabombus subgenus Megabombus. Memoirs of the Entomological Society of Canada, 81, 81–237. https://doi.org/10.4039/entm10589fv DOI: https://doi.org/10.4039/entm10589fv
  114. Mitchell, T.B. (1935a) A revision of the genus Megachile in the Nearctic region. Part II. Morphology of the male sternites and genital armature and the taxonomy of the subgenera Litomegachile, Neomegachile and Cressoniella (Hymenoptera: Megachilidae). Transactions of the American Entomological Society, 61, 1–44.
  115. Mitchell, T.B. (1935b) A revision of the genus Megachile in the Nearctic region. Part III. Taxonomy of subgenera Anthemois and Delomegachile (Hymenoptera: Megachilidae). Transactions of the American Entomological Society, 61, 155–205.
  116. Mitchell, T.B. (1936a) A revision of the genus Megachile in the Nearctic region. Part IV. Taxonomy of subgenera Xanthosarus, Phaenosarus, Megachiloides and Derotropis (Hymenoptera: Megachilidae). Transactions of the American Entomological Society, 62, 117–166.
  117. Mitchell, T.B. (1936b) A revision of the genus Megachile in the Nearctic region. Part V. Taxonomy of subgenus Xeromegachile (Hymenoptera: Megachilidae). Transactions of the American Entomological Society, 62, 323–382.
  118. Mitchell, T.B. (1937a) A revision of the genus Megachile in the Nearctic region. Part VI. Taxonomy of subgenera Argyropile, Leptorachis, Pseudocentron, Acentron and Melanosarus (Hymenoptera: Megachilidae). Transactions of the American Entomological Society, 63, 45–93.
  119. Mitchell, T.B. (1937b) A revision of the genus Megachile in the Nearctic region. Part VII. Taxonomy of the subgenus Sayapis (Hymenoptera: Megachilidae). Transactions of the American Entomological Society, 63, 175–206.
  120. Mitchell, T.B. (1937c) A revision of the genus Megachile in the Nearctic region. Part VIII. Taxonomy of the subgenus Chelostomoides, addenda, and index (Hymenoptera: Megachilidae). Transactions of the American Entomological Society, 63, 381–421.
  121. Mitchell, T.B. (1960) Bees of the Eastern United States. Vol. I. North Carolina Agricultural Experimental Station Technical Bulletin, 141, 1–538.
  122. Mitchell, T.B. (1962) Bees of the Eastern United States. Vol. II. North Carolina Agricultural Experimental Station Technical Bulletin, 152, 1–557.
  123. Mitchell, T.B. (1973) A subgeneric revision of the bees of the genus Coelioxys of the Western Hemisphere (Hymenoptera: Megachilidae). Contributions from the Department of Entomology. North Carolina State University, Raleigh, North Carolina, 129 pp.
  124. Mitchell, T.B. (1980) A generic revision of the megachiline bees of the Western Hemisphere (Hymenoptera: Megachilidae). Contributions from the Department of Entomology. North Carolina State University, Raleigh, North Carolina, 95 pp.
  125. Minnesota Department of Natural Resources (2016) Minnesota’s Wildlife Action Plan 2015-2025. Division of Ecological and Water Resources, Minnesota Department of Natural Resources, St. Paul, Minnesota, 240 pp.
  126. Mola, J.M., Richardson, L.L., Spyreas, G., Zaya, D.N. & Pearse, I.S. (2021) Long-term surveys support declines in early season forest plants used by bumblebees. Journal of Applied Ecology, 58, 1431–1441. https://doi.org/10.1111/1365-2664.13886 DOI: https://doi.org/10.1111/1365-2664.13886
  127. Moure, J.S. & Hurd, P.D. (1987) An Annotated Catalog of the Halictid Bees of the Western Hemisphere (Hymenoptera: Halictidae). Smithsonian Institution Press, Washington D.C., 405 pp.
  128. Niu, Z.Q., John, S.A., Luo, A.R., Terry, G. & Zhu, C.D. (2016) Revision of the Anthidiellum Cockerell, 1904 of China (Hymenoptera, Apoidea, Megachilidae, Anthidiini). Zootaxa, 4127 (2), 327–344. https://doi.org/10.11646/zootaxa.4127.2.5 DOI: https://doi.org/10.11646/zootaxa.4127.2.5
  129. Ollerton, J., Winfree, R. & Tarrant, S. (2011) How many flowering plants are pollinated by animals? Oikos, 120, 321–326. https://doi.org/10.1111/j.1600-0706.2010.18644.x DOI: https://doi.org/10.1111/j.1600-0706.2010.18644.x
  130. Onuferko, T.M. (2017) Cleptoparasitic bees of the genus Epeolus Latreille (Hymenoptera: Apidae) in Canada. Canadian Journal of Arthropod Identification, 30, 1–62. https://doi.org/10.3752/cjai.2017.30 DOI: https://doi.org/10.3752/cjai.2017.30
  131. Onuferko, T.M. (2018) A revision of the cleptoparasitic bee genus Epeolus Latreille for Nearctic species, north of Mexico (Hymenoptera, Apidae). ZooKeys, 755, 1–185. https://doi.org/10.3897/zookeys.755.23939 DOI: https://doi.org/10.3897/zookeys.755.23939.figure10
  132. Onuferko, T.M., Packer, L. & Genaro, J.A. (2021) Brachymelecta Linsley, 1939, previously the rarest north american bee genus, was described from an aberrant specimen and is the senior synonym for Xeromelecta Linsley, 1939. European Journal of Taxonomy, 754, 1–51. https://doi.org/10.5852/ejt.2021.754.1393 DOI: https://doi.org/10.5852/ejt.2021.754.1393
  133. Oram, R.J. (2018) Revision of the genus Hylaeus Fabricius (Hymenoptera: Colletidae) in Canada. MSc Thesis, University of Regina, Regina, 165 pp.
  134. Ordway, E. (1966) Systematics of the genus Augochlorella (Hymenoptera, Halictidae) north of Mexico. The University of Kansas Science Bulletin, 46, 509–624. https://doi.org/10.5962/bhl.part.20079 DOI: https://doi.org/10.5962/bhl.part.20079
  135. Orr, M.C., Ren, Z.X., Ge, J., Tian, L., An, J., Huang, J., Zhu, C.D. & Williams, P.H. (2022) The rising threat of the invasive bumblebee Bombus terrestris highlights the need for sales restrictions and domestication of unique local biodiversity in Asia. Entomologia Generalis, 42, 655–658. https://doi.org/10.1127/entomologia/2022/1409 DOI: https://doi.org/10.1127/entomologia/2022/1409
  136. Page, M.L., Ison, J.L., Bewley, A.L., Holsinger, K.M., Kaul, A.D., Koch, K.E., Kolis, K.M. & Wagenius, S. (2019) Pollinator effectiveness in a composite: a specialist bee pollinates more florets but does not move pollen farther than other visitors. American Journal of Botany, 106, 1487–1498. https://doi.org/10.1002/ajb2.1383 DOI: https://doi.org/10.1002/ajb2.1383
  137. Parker, F.D. (1978) An illustrated key to alfalfa leafcutter bees Eutricharaea (Hymenoptera: Megachilidae). Pan-Pacific Entomologist, 54, 61–64. https://doi.org/10.5860/choice.48-6651 DOI: https://doi.org/10.5860/CHOICE.48-6651
  138. Pennarola, P. (2019) The revery alone won’t do: Fire grazing, and other drivers of bee communities in remnant tallgrass prairie. MSc Thesis, University of Minnesota, St. Paul, 110 pp.
  139. Pesenko, Y.A. & Davydova N.G. (2004) Bee fauna (Hymenoptera, Apoidea) of Yakutia: II. Entomological Review, 84, 677–693.
  140. Piot, N., Schweiger, O., Meeus, I., Yañez, O., Straub, L., Villamar-Bouza, L., De la Rúa, P., Jara, L., Ruiz, C., Malmstrøm, M., Mustafa, S., Nielsen, A., Mänd, M., Karise, R., Tlak-Gajger, I., Özgör, E., Keskin, N., Diévart, V., Dalmon, A., Gajda, A., Neumann, P., Smagghe, G., Graystock, P., Radzevičiūtė, R., Paxton, R.J. & de Miranda, J.R. (2022) Honey bees and climate explain viral prevalence in wild bee communities on a continental scale. Scientific Reports, 12, 1904. https://doi.org/10.1038/s41598-022-05603-2 DOI: https://doi.org/10.1038/s41598-022-05603-2
  141. Pisanty, G., Richter, R., Martin, T., Dettman, J. & Cardinal, S. (2022) Molecular phylogeny, historical biogeography and revised classification of andrenine bees (Hymenoptera: Andrenidae). Molecular Phylogenetics and Evolution, 170, 107151. https://doi.org/10.1016/j.ympev.2021.107151 DOI: https://doi.org/10.1016/j.ympev.2021.107151
  142. Plowright, R.C. & Pallett, M.J. (1978) A morphometric study of the taxonomic status of Bombus sandersoni (Hymenoptera: Apidae). Canadian Entomologist, 110, 647–654. https://doi.org/10.4039/Ent110647-6 DOI: https://doi.org/10.4039/Ent110647-6
  143. Portman, Z.M., Arduser, M., Lane, I.G. & Cariveau, D.P. (2022a) A review of the Augochloropsis (Hymenoptera, Halictidae) and keys to the shiny green Halictinae of the midwestern United States. ZooKeys, 1130, 103–152. https://doi.org/10.3897/zookeys.1130.86413 DOI: https://doi.org/10.3897/zookeys.1130.86413.figure5
  144. Portman, Z.M., Bruninga-Socolar, B., Evans, E. & Tucker, R.C. (2022b) A survey of the bees of the Six Mile Marsh Prairie restoration in Minnesota suggests benefits from haying. Prairie Naturalist, Special Issue 1, 41–53.
  145. Portman, Z.M., Burrows, S.J., Arduser, M., Griswold, T., Arduser, M., Irber, A.J., Tonietto, R.K. & Cariveau, D. (2019) First records of the adventive Pseudoanthidium nanum (Mocsáry) (Hymenoptera: Megachilidae) in Illinois and Minnesota, with notes on its identification and taxonomy. Great Lakes Entomologist, 52, 12–20.
  146. Portman, Z.M. & Dolan, C. (2022) Documenting Bombus nevadensis in Minnesota, with some notes on discerning it from B. auricomus (Hymenoptera: Apidae). Great Lakes Entomologist, 55, 11–20. DOI: https://doi.org/10.1101/2022.05.23.493105
  147. Portman, Z.M., Lane, I.G., Pardee, G.L. & Cariveau, D.P. (2020) Reinstatement of Andrena vernalis Mitchell (Hymenoptera: Andrenidae) from synonymy with A. ziziae Robertson. Great Lakes Entomologist, 53, 25–40.
  148. Portman, Z.M. & Tepedino, V.J. (2021) Successful bee monitoring programs require sustained support of taxonomists and taxonomic research. Biological Conservation, 256, 109080. https://doi.org/10.1016/j.biocon.2021.109080 DOI: https://doi.org/10.1016/j.biocon.2021.109080
  149. Potts, S.G., Imperatriz-Fonseca, V., Ngo, H.T., Aizen, M.A., Biesmeijer, J.C., Breeze, T.D., Dicks, L. V., Garibaldi, L.A., Hill, R., Settele, J. & Vanbergen, A.J. (2016) Safeguarding pollinators and their values to human well-being. Nature, 540, 220–229. https://doi.org/10.1038/nature20588 DOI: https://doi.org/10.1038/nature20588
  150. Praz, C., Genoud, D., Vaucher, K., Bénon, D., Monks, J. & Wood, T.J. (2022) Unexpected levels of cryptic diversity in European bees of the genus Andrena subgenus Taeniandrena (Hymenoptera, Andrenidae): implications for conservation. Journal of Hymenoptera Research, 91, 375–428. https://doi.org/10.3897/JHR.91.82761 DOI: https://doi.org/10.3897/jhr.91.82761
  151. Rafferty, N.E. (2017) Effects of global change on insect pollinators: multiple drivers lead to novel communities. Current Opinion in Insect Science, 23, 22–27. https://doi.org/10.1016/j.cois.2017.06.009 DOI: https://doi.org/10.1016/j.cois.2017.06.009
  152. Rasmont, P., Franzen, M., Lecocq, T., Harpke, A., Roberts, S., Biesmeijer, K., Castro, L., Cederberg, B., Dvorak, L., Fitzpatrick, U., Gonseth, Y., Haubruge, E., Mahe, G., Manino, A., Michez, D., Neumayer, J., Odegaard, F., Paukkunen, J., Pawlikowski, T., Potts, S., Reemer, M., Settele, J., Straka, J. & Schweiger, O. (2015) Climatic Risk and Distribution Atlas of European Bumblebees. BioRisk, 10, 1–236. https://doi.org/10.3897/biorisk.10.4749 DOI: https://doi.org/10.3897/biorisk.10.4749
  153. Reed, C.C. (1995a) Insects surveyed on flowers in native and reconstructed prairies (Minnesota). Restoration and Management Notes, 13, 210–213.
  154. Reed, C.C. (1995b) Species richness of insects on prairie flowers in southeastern Minnesota. In: Hartnett, D.C. (Ed.), Fourteenth North American Prairie Conference: Prairie Biodiversity. Kansas State University, Manhattan, Kansas, pp. 103–115
  155. Rehan, S.M. & Sheffield, C.S. (2011) Morphological and molecular delineation of a new species in the Ceratina dupla species-group (Hymenoptera: Apidae: Xylocopinae) of eastern North America. Zootaxa, 2837 (1), 35–50. https://doi.org/10.11646/zootaxa.2873.1.3 DOI: https://doi.org/10.11646/zootaxa.2873.1.3
  156. Ribble, D.W. (1965) A revision of the banded subgenera of Nomia in America (Hymenoptera: Halictidae). University of Kansas Science Bulletin, 41, 277–359.
  157. Ribble, D.W. (1967) The monotypic North American subgenus Larandrena (Hymenoptera: Apoidea). Bulletin of the University of Nebraska State Museum, 6, 27–42.
  158. Ribble, D.W. (1968) Revisions of two subgenera of Andrena: Micrandrena Ashmead and Derandrena, new subgenus (Hymenoptera: Apoidea). Bulletin of the University of Nebraska State Museum, 8, 237–394.
  159. Ribble, D.W. (1974) A revision of the bees of the genus Andrena of the Western Hemisphere subgenus Scaphandrena. Transactions of the American Entomological Society, 100, 101–189.
  160. Rightmyer, M.G. (2008) A review of the cleptoparasitic bee genus Triepeolus (Hymenoptera: Apidae).—Part I. Zootaxa, 1710 (1), 1–170. https://doi.org/10.11646/zootaxa.1710.1.1 DOI: https://doi.org/10.11646/zootaxa.1710.1.1
  161. Rightmyer, M.G., Griswold, T. & Arduser, M.S. (2010) A review of the non-metallic Osmia (Melanosmia) found in North America, with additional notes on palearctic Melanosmia (Hymenoptera, Megachilidae). ZooKeys, 60, 37–77. https://doi.org/10.3897/zookeys.60.484 DOI: https://doi.org/10.3897/zookeys.60.484
  162. Roberts, R.B. (1972) Revision of the bee genus Agapostemon (Hymenoptera: Halictidae). University of Kansas Science Bulletin, 49, 437–590.
  163. Roberts, R.B. (1973) Bees of northwestern America: Halictus (Hymenoptera: Halictidae). Agricultural Experimental Station: Oregon State Technical Bulletin, 126, 1–23.
  164. Robertson, C. (1902) Some new or little-known bees.—IV. Canadian Entomologist, 34, 321–325. https://doi.org/10.4039/S0008347X0017779X DOI: https://doi.org/10.4039/S0008347X0017779X
  165. Rocha Filho, L.C. Da & Packer, L. (2017) Phylogeny of the cleptoparasitic Megachilini genera Coelioxys and Radoszkowskiana, with the description of six new subgenera in Coelioxys (Hymenoptera: Megachilidae). Zoological Journal of the Linnean Society, 180, 354–413. https://doi.org/10.1111/zoj.12484 DOI: https://doi.org/10.1111/zoj.12484
  166. Roch, J.C., Agudelo, C.D.M., Adler, L.S. & Milam, J. (2021) First records of Perdita bequaerti (Hymenoptera: Andrenidae) from New England. Journal of the Kansas Entomological Society, 93, 354–360. https://doi.org/10.2317/0022-8567-93.4.354 DOI: https://doi.org/10.2317/0022-8567-93.4.354
  167. Rodger, J.G., Bennett, J.M., Razanajatovo, M., Knight, T.M., van Kleunen, M., Ashman, T.L., Steets, J.A., Hui, C., Arceo-Gómez, G., Burd, M., Burkle, L.A., Burns, J.H., Durka, W., Freitas, L., Kemp, J.E., Li, J., Pauw, A., Vamosi, J.C., Wolowski, M., Xia, J. & Ellis, A.G. (2021) Widespread vulnerability of flowering plant seed production to pollinator declines. Science Advances, 7, 1–11. https://doi.org/10.1126/sciadv.abd3524 DOI: https://doi.org/10.1126/sciadv.abd3524
  168. Rowe, G. (2017) A taxonomic revision of the Canadian non-Osmia Osmiini (Hymenoptera: Megachilidae). MSc Thesis, York University, Toronto, 321 pp.
  169. Rust, R.W. (1974) The systematics and biology of the genus Osmia, subgenera Osmia, Chalcosmia, and Cephalosmia (Hymenoptera: Megachilidae). Wasmann Journal of Biology, 32, 1–93.
  170. Sandhouse, G.A. (1939) The North American bees of the genus Osmia. Memoirs of the Entomological Society of Washington, 1, 1–167.
  171. Satyshur, C.D., Evans, T.A., Forsberg, B.M. & Blair, R.B. (2020) Minnesota state records for Osmia georgica, Megachile inimica, and Megachile frugalis (Hymenoptera, Megachilidae), including a new nest description for Megachile frugalis compared with other species in the subgenus Sayapis. Great Lakes Entomologist, 53, 1–12.
  172. Satyshur, C.D., Evans, T.A., Forsberg, B.M. & Gibbs, J. (2021) First records of Stelis permaculata Cockerell (Hymenoptera: Megachilidae) in Minnesota, United States of America and Manitoba, Canada. Great Lakes Entomologist, 54, 208–210.
  173. Schwarz, H.F. (1926) North American Dianthidium, Anthidiellum, and Paranthidium. American Museum Novitates, 226, 1–25.
  174. Schwarz, M. & Gusenleitner, F. (2004) Beitrag zur klärung und kenntnis parasitärer bienen der gattungen Coelioxys and Nomada (Hymenoptera, Apidae). Linzer biologische Beiträge, 36, 1413–1485.
  175. Scott, V.L., Ascher, J.S., Griswold, T. & Nufio, C.R. (2011) The Bees of Colorado. Natural History Inventory of Colorado, 23, 1–100.
  176. Selfridge, J.A., Frye, C.T., Gibbs, J. & Jean, R.P. (2017) The bee fauna of inland sand dune and ridge woodland communities in Worcester County, Maryland. Northeastern Naturalist, 24, 421–445. https://doi.org/10.1656/045.024.0404 DOI: https://doi.org/10.1656/045.024.0404
  177. Semmler, S.J., Olynyk, M., Miller, R. & Gibbs, J. (2018) First records of the resin bees, Dianthidium pudicum pudicum and D. simile (Hymenoptera: Megachilidae), in Manitoba, with a key to local species. Proceedings of the Entomological Society of Manitoba, 73, 5–13. https://doi.org/10.1080/0002889778507652 DOI: https://doi.org/10.1080/0002889778507652
  178. Shanks, S.S. (1977) A revision of the cleptoparasitic bee genus Neolarra (Hymenoptera: Anthophoridae). Wasmann Journal of Biology, 35, 212–246.
  179. Sheffield, C.S. (2020) Corrigendum: Leafcutter and mason bees of the genus Megachile Latreille (Hymenoptera: Megachilidae) in Canada and Alaska. Canadian Journal of Arthropod Identification, 1–2. [published online] https://doi.org/10.3752/cjai.2020.AC05 DOI: https://doi.org/10.3752/cjai.2020.AC05
  180. Sheffield, C.S., Ratti, C., Packer, L. & Griswold, T. (2011) Leafcutter and mason bees of the genus Megachile Latreille (Hymenoptera: Megachilidae) in Canada and Alaska. Canadian Journal of Arthropod Identification, 18, 1–107. https://doi.org/10.3752/cjai.2011.18 DOI: https://doi.org/10.3752/cjai.2011.18
  181. Shinn, A.F. (1967) A revision of the bee genus Calliopsis and the biology and ecology of C. andreniformis (Hymenoptera, Andrenidae). University of Kansas Science Bulletin, 46, 753–936. https://doi.org/10.5962/bhl.part.20081 DOI: https://doi.org/10.5962/bhl.part.20081
  182. Slagle, M.W. & Hendrix, S.D. (2009) Reproduction of Amorpha canescens (Fabaceae) and diversity of its bee community in a fragmented landscape. Oecologia, 161, 813–823. https://doi.org/10.1007/s00442-009-1429-3 DOI: https://doi.org/10.1007/s00442-009-1429-3
  183. Snelling, R.R. (1966) Studies on North American bees of the genus Hylaeus 1. Distribution of the western species of the subgenus Prosopis with descriptions of new forms (Hymenoptera: Colletidae). Los Angeles County Museum, Contributions in Science, 98, 1–18. https://doi.org/10.5962/p.241088 DOI: https://doi.org/10.5962/p.241088
  184. Snelling, R.R. (1968) Studies on North American bees of the genus Hylaeus. 4. The subgenera Cephalylaeus, Metziella and Hylaeana (Hymenoptera: Colletidae). Los Angeles County Museum, Contributions in Science, 144, 1–6. https://doi.org/10.5962/p.241133 DOI: https://doi.org/10.5962/p.241133
  185. Snelling, R.R. (1970) Studies on North American bees of the genus Hylaeus. 5. The subgenera Hylaeus, S. Str. and Paraprosopis (Hymenoptera: Colletidae). Los Angeles County Museum, Contributions in Science, 180, 1–59. https://doi.org/10.5962/p.241167 DOI: https://doi.org/10.5962/p.241167
  186. Snelling, R.R. (1990) A review of the native North American bees of the genus Chalicodoma (=Chelostomoides) (Hymenoptera: Megachilidae). Los Angeles County Museum, Contributions in Science, 421, 1–39. https://doi.org/10.5962/p.208139 DOI: https://doi.org/10.5962/p.208139
  187. Snelling, R.R. & Stage, G.I. (1995) A revision of the Nearctic Melittidae: the subfamily Melittinae (Hymenoptera: Apoidea). Los Angeles County Museum, Contributions in Science, 451, 19–31. https://doi.org/10.5962/p.208086 DOI: https://doi.org/10.5962/p.208086
  188. Stephen, W.P. (1954) A revision of the bee genus Colletes in America North of Mexico (Hymenoptera: Colletidae). University of Kansas Science Bulletin, 47, 150–524.
  189. Stevens, O.A. (1948) Native bees: bumblebees. North Dakota Agricultural Station Bimonthly Bulletin, 11, 49–54.
  190. Stevens, O.A. (1950) Native Bees. North Dakota Agricultural Experimental Station Bimonthly Bulletin, 12, 72–80 + 90–98.
  191. Swenk, M.H. (1914) I.—Studies of North American bees. II. Family Stelididae. University Studies of the University of Nebraska, 14, 1–36.
  192. Swenk, M.H. (1915) II. Studies of North American bees. III. Families Nomadidae and Stelidae. University Studies of The University of Nebraska, 15, 155–193.
  193. Swenk, M.H. & Cockerell, T.D.A. (1907) The bees of Nebraska. II. Family Panurgidae (concluded). Entomological News, 18, 178–187.
  194. Tepedino, V.J. & Portman, Z.M. (2021) Intensive monitoring for bees in North America: indispensable or improvident? Insect Conservation and Diversity, 14, 535–542. https://doi.org/10.1111/icad.12509 DOI: https://doi.org/10.1111/icad.12509
  195. The Xerces Society, Wildlife Preservation Canada, York University, University of Ottawa, The Montreal Insectarium, The London Natural History Museum, BeeSpotter (2022) Data accessed from Bumble Bee Watch, a collaborative website to track and conserve North America’s bumble bees. Available from: http://www.bumblebeewatch.org/app/#/bees/lists (accessed 1 December 2022)
  196. Timberlake, P.H. (1953) Bees of the genus Perdita in the collection of the University of Kansas (Hymenoptera, Apoidea). University of Kansas Science Bulletin, 35, 962–985. https://doi.org/10.5962/bhl.part.26729 DOI: https://doi.org/10.5962/bhl.part.26729
  197. Timberlake, P.H. (1954) A revisional study of the bees of the genus Perdita F. Smith, with special reference to the fauna of the Pacific Coast (Hymenoptera, Andrenidae). Part I. University of California Publications in Entomology, 9, 345–432.
  198. Timberlake, P.H. (1956) A revisional study of the bees of the genus Perdita F. Smith, with special reference to the fauna of the Pacific Coast (Hymenoptera, Andrenidae). Part II. University of California Publications in Entomology, 11, 247–350.
  199. Timberlake, P.H. (1958) A revisional study of the bees of the genus Perdita F. Smith, with special reference to the fauna of the Pacific Coast (Hymenoptera, Andrenidae). Part III. University of California Publications in Entomology, 14, 303–410.
  200. Timberlake, P.H. (1960) A revisional study of the bees of the genus Perdita F. Smith, with special reference to the fauna of the Pacific Coast (Hymenoptera, Andrenidae). Part V. University of California Publications in Entomology, 17, 1–156.
  201. Timberlake, P.H. (1964) Some new species of Pseudopanurgus of the subgenus Heterosarus Robertson (Hymenoptera, Apoidea). American Museum Novitates, 2185, 1–26.
  202. Timberlake, P.H. (1967) New species of Pseudopanurgus from Arizona (Hymenoptera, Apoidea). American Museum Novitates, 2298, 1–23.
  203. Timberlake, P.H. (1968) A revisional study of the bees of the genus Perdita F. Smith, with special reference to the fauna of the Pacific Coast (Hymenoptera, Andrenidae). Part VII. University of California Publications in Entomology, 49, 1–196.
  204. Timberlake, P.H. (1969) A contribution to the systematics of North American species of Synhalonia (Hymenoptera, Apoidea). University of California Publications in Entomology, 57, 1–71.
  205. Timberlake, P.H. (1975) The North American species of Heterosarus Robertson (Hymenoptera, Apoidea). University of California Publications in Entomology, 77, 1–56.
  206. Timberlake, P.H. (1976) Revision of the North American bees of the genus Protandrena Cockerell (Hymenoptera: Apoidea). Transactions of the American Entomological Society, 102, 133–227.
  207. Urban, D. (2001) Loyolanthidium gen. n. e três espécies novas neotropicais (Hymenoptera, Megachilidae). Revista Brasileira de Zoologia, 18, 63–70. https://doi.org/10.1590/s0101-81752001000100005 DOI: https://doi.org/10.1590/S0101-81752001000100005
  208. U.S. Fish & Wildlife Service (2017) Endangered and threatened wildlife and plants; Endangered species status for rusty patched bumble bee. Federal Register, 82, 3186–3209.
  209. U.S. Fish and Wildlife Service (2021) Endangered and threatened wildlife and plants; 90-day findings for five species. Federal Register, 86, 53937–53941.
  210. U.S. Fish and Wildlife Service (2022) Endangered and threatened wildlife and plants; 90-day findings or three species. Federal Register, 87, 7079–7083.
  211. Veit, M.F., Ascher, J.S., Milam, J., Fred, R. & Goldstein, P.Z. (2021) A checklist of the bees of Massachusetts (Hymenoptera: Apoidea: Anthophila). Journal of the Kansas Entomological Society, 94, 81–157. https://doi.org/10.2317/0022-8567-94.2.81 DOI: https://doi.org/10.2317/0022-8567-94.2.81
  212. Viereck, H.L. (1917) Article VIII.—Contributions to our knowledge of the bee genus Perdita Smith. Bulletin of the American Museum of Natural History, 1917, 241–242.
  213. Washburn, F.L. (1918) The Hymenoptera of Minnesota. 17th Report Minnesota State Entomologist, Agricultural Experimental Station, 145–237.
  214. Weaver, S.A. & Mallinger, R.E. (2022) A specialist bee and its host plants experience phenological shifts at different rates in response to climate change. Ecology, 103, e3658. https://doi.org/10.1002/ecy.3658 DOI: https://doi.org/10.1002/ecy.3658
  215. Williams, P.H., Byvaltsev, A.M., Cederberg, B., Berezin, M. V., Ødegaard, F., Rasmussen, C., Richardson, L.L., Huang, J., Sheffield, C.S. & Williams, S.T. (2015) Genes suggest ancestral colour polymorphisms are shared across morphologically cryptic species in arctic bumblebees. PLoS ONE, 10, 1–26. https://doi.org/10.1371/journal.pone.0144544 DOI: https://doi.org/10.1371/journal.pone.0144544
  216. Williams, P., Thorp, R., Richardson, L. & Colla, S. (2014) Bumble bees of North America. Princeton University Press, Princeton and Oxford, 208 pp.
  217. Wolf, A.T. & Ascher, J.S. (2008) Bees of Wisconsin (Hymenoptera: Apoidea: Anthophila). Great Lakes Entomologist, 41, 129–168.
  218. Wolfin, J., Watkins, E., Lane, I., Portman, Z.M. & Spivak, M. (2021) Floral enhancement of turfgrass lawns benefits wild bees and honey bees (Apis mellifera). ResearchSquare, 1–29. https://doi.org/10.21203/rs.3.rs-298235/v1 DOI: https://doi.org/10.21203/rs.3.rs-298235/v1
  219. Wu, Y.-R. (2004) The first record of the genus Anthidiellum Cockerell 1904 from China with descriptions of three new species. Acta Zootaxonomica Sinica, 29, 774–777.
  220. Zarrillo, T.A., Ascher, J.S., Gibbs, J. & Stoner, K.A. (2016) New and noteworthy records of bees (Hymenoptera: Apoidea: Anthophila) for Connecticut. Journal of the Kansas Entomological Society, 89, 138–157. https://doi.org/10.2317/0022-8567-89.2.138 DOI: https://doi.org/10.2317/0022-8567-89.2.138