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Issue: Vol. 5586 No. 1: 12 Feb. 2025
Type: Monograph
Published: 2025-02-12
DOI: 10.11646/zootaxa.5586.1.1
Page range: 1-138
Abstract views: 410
PDF downloaded: 230

Biodiversity of Bees (Hymenoptera: Apoidea: Anthophila) in Connecticut (USA)

Department of Entomology; Connecticut Agricultural Experiment Station; New Haven; CT; USA 06511
Department of Entomology; Connecticut Agricultural Experiment Station; New Haven; CT; USA 06511
Department of Biological Science; National University of Singapore; Singapore 117543
Hymenoptera checklist faunal list native bees conservation New England iNaturalist community science phenology floral associations Eastern United States

Abstract

In response to calls for national and regional updated inventories of bee species, we present a county-level checklist for 385 confirmed bee (Apoidea: Anthophila) species for Connecticut, USA, highlighting rare and regionally declining species, species that have specific habitat and/or host requirements, and species whose taxonomy and distribution we wish to clarify. We have compiled a comprehensive, digitized database of historic and current bee records from Connecticut to inform this checklist, which includes specimen records from museums, recent collections, and community science observations from iNaturalist.com. All images of bees from Connecticut on iNaturalist (18,471 observations) have been fully vetted by one or more of the authors, which is unprecedented for a state project. We summarize historical bee research in Connecticut and provide current information regarding the distribution of bee species, changes in status, phenology, habitat usage, and floral associations within the state. At least 43 of 385 species represented in collections or literature have not been detected in Connecticut since the year 2000. These and other species of conservation concern are discussed with reference to a quantitative assessment of changes in range within the state. In addition, we have calculated and report state-level ranks for 124 bee species in Connecticut. We corroborate regional loss of species including Coelioxys funerarius Smith and Holcopasites illinoiensis (Robertson) and clarify and extend the distribution of numerous bee species in the Northeastern United States. Furthermore, we discuss morphospecies, excluded species, and species expected for Connecticut. We also validate synonymies reported previously online based on an unpublished manuscript by Roy Snelling for the following species: Nomada depressa Cresson (= N. hoodiana Cockerell; = N. carinicauda Cockerell; = N. media Mitchell); Nomada obliterata Cresson (= N. decepta Mitchell); Nomada vicina Cresson (= N. beulahensis Cockerell; = N. vicina stevensi Swenk). In addition, we recognize three new synonyms of Nomada xanthura Cockerell (= N. ochlerata Mitchell; = N. detrita Mitchell; = N. mendica Mitchell) and report the first Nomada townesi Mitchell from outside of Maryland. In addition to N. townesi, the following eleven native species are newly reported or recently confirmed for Connecticut: Andrena (Cnemidandrena) parnassi­­­­ae Cockerell; Andrena (Melandrena) sayi Robertson; Andrena (Trachandrena) rehni Viereck; Anthophora bomboides Kirby; Nomada armatella Cockerell; Nomada electella Cockerell; Nomada placida Cresson; Lasioglossum (Dialictus) cattellae (Ellis); Lasioglossum (Dialictus) ellisiae (Sandhouse); Lasioglossum (Dialictus) fattigi (Mitchell); Lasioglossum (Dialictus) trigeminum Gibbs. The following recent arrivals among non-native species are confirmed: Pseudoanthidium (Pseudoanthidium) nanum (Mocsáry); Coelioxys (Allocoelioxys) coturnix Pérez; Osmia (Osmia) taurus Smith. This work is a stepping stone towards a larger, ongoing effort to clarify bee distribution and status in New England. As such, we also report updates for the bee fauna of the following states: Massachusetts—Melissodes communis communis Cresson; Megachile (Eutricharaea) apicalis Spinola), Maine—Chelostoma philadelphi (Robertson), and New Hampshire—Lasioglossum nelumbonis (Robertson).

 

References

  1. Alexander, B.A. (1990) A cladistic analysis of the nomadine bees (Hymenoptera: Apoidea). Systematic Entomology, 15, 121–152. https://doi.org/10.1111/j.1365-3113.1990.tb00310.x
  2. Amiet, F., Herrmann, M., Müller, A. & Neumeyer, R. (2004) Fauna Helvetica 9. Apidae 4: Anthidium, Chelostoma, Coelioxys, Dioxys, Heriades, Lithurgus, Megachile, Osmia, Stelis. Fauna Helvetica 9. Apidae 4: Anthidium, Chelostoma, Coelioxys, Dioxys, Heriades, Lithurgus, Megachile, Osmia, Stelis. Centre Suisse de Cartographie de la Fauna, Neauchâtel, 273 pp.
  3. Anderson, J.F. & Wojtas, M.A. (1986) Honey bees (Hymenoptera: Apidae) contaminated with pesticides and polychlorinated biphenyls. Journal of Economic Entomology, 79 (5), 1200–1205. https://doi.org/10.1093/jee/79.5.1200
  4. Arduser, M. (2020) Hylaeus species of the Tallgrass Prairie and Greater Midwest. unpublished.
  5. Arnold, C., Wilson E., Hurd J. & Civco D. (2020) 30 years of land cover change in Connecticut, USA: A case study of long-term research, dissemination of results, and their use in land use planning and natural resource conservation. Land, 9 (8), 255. https://doi.org/10.3390/land9080255
  6. 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 16 September 2024)
  7. Ascher, J.S., Kornbluth, S. & Goelet, R.G. (2014) Bees (Hymenoptera: Apoidea: Anthophila) of Gardiners Island, Suffolk County, New York. Northeastern Naturalist, 21 (1), 47–71. https://doi.org/10.1656/045.021.0105
  8. Ascher J.S. & Pickering, J. (2022) Discover Life bee species guide and world checklist (Hymenoptera: Apoidea: Anthophila). Available from: https://www.discoverlife.org/mp/20q?guide=Apoidea_species&flags=HAS (accessed 16 September 2024)
  9. Askins, R. (1998) Restoring Forest disturbances to sustain populations of shrubland birds. Ecological Restoration, 16, 166–173. https://doi.org/10.3368/er.16.2.166
  10. Audubon Connecticut (2022) Priority Bird Species. Available from: https://ct.audubon.org/priority-bird-species (accessed 16 September 2024)
  11. Baker, J.R. (1975) Taxonomy of five Nearctic subgenera of Coelioxys (Hymenoptera: Megachilidae). University of Kansas Science Bulletin, 50 (12), 649–730. [https://digitalcommons.usu.edu/bee_lab_an/268]
  12. Bancroft, G. (1886) New Netherland. In: History of the United States of America, from the discovery of the continent. D. Appleton and Company, New York, New York, pp. 475–493.
  13. 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 (12), 4656–4660. https://doi.org/10.1073/pnas.1218503110
  14. Batra, S.W.T. (1985) Red maple (Acer rubrum L.), an important early spring food resource for honey bees and other insects. Journal of the Kansas Entomological Society, 58, 169–172. [https://www.jstor.org/stable/25084616]
  15. Bell, M. (1985) The Face of Connecticut: People, Geology, and the Land. State Geological and Natural History Survey of Connecticut Bulletin 110. State Geological and Natural History Survey of Connecticut, Hartford, Connecticut, 228 pp.
  16. Bentley, A. & Thomas, J. (2024) Snow Entomological Museum Collection. Version 26.78. University of Kansas Biodiversity Institute. Occurrence dataset. Available from: https://www.gbif.org/ (accessed 16 January 2024) https://doi.org/10.15468/fhntpy
  17. Biodiversity Information Serving Our Nation [BISON] (2020) Filtered export of GBIF occurrence data. Derived dataset. Available from: https://doi.org/10.15468/dd.j7bsvx (accessed 19 February 2020)
  18. Bossert, S., Wood, T.J., Patiny, S., Michez, D., Almeida, E.A., 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 (2), 283–302. https://doi.org/10.1111/syen.12530
  19. Boulanger, L.W., Wood G., Osgood E. & Dirks, C. (1967) Native bees associated with the low-bush blueberry in Maine and Eastern Canada. Maine Agricultural Experiment Station Technical Bulletin, 26, 1–22. [https://digitalcommons.library.umaine.edu/aes_techbulletin/165/]
  20. 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 (3/4), 275–389. [https://www.jstor.org/stable/25078228]
  21. Bradley, J.C. (1959) The influence of the American Entomological Society upon the study of Hymenoptera. Transactions of the American Entomological Society, 85, 277–301. [https://www.jstor.org/stable/25077786]
  22. Britton, W.E. & Viereck, H.L. (1906) Insects collected from the flowers of fruit trees and plants and relations of flowers to insect visitors. In: 29th Annual Report of the Connecticut Agricultural Experiment Station for the Year Ending October 31, 1905. State of Connecticut Public Document No. 24. The Tuttle, Morehouse & Taylor Company, New Haven, Connecticut, pp. 207–224. Available from: https://portal.ct.gov/-/media/caes/documents/publications/annual_report/annualreport1905pdf.pdf (accessed 16 September 2024)
  23. Britton, W.E. (1920) Check-list of the insects of Connecticut Bulletin No. 31. Connecticut State Geological and Natural History Survey, Hartford, Connecticut, 397 pp. https://doi.org/10.5962/bhl.title.48679
  24. Britton, W.E. (1931) Early entomological work in Connecticut. In: 30th Report of the Connecticut State Entomologist. Connecticut Agricultural Experiment Station, Bulletin 327. The Tuttle, Morehouse & Taylor Company, New Haven, Connecticut, pp. 535–542. Available from: https://portal.ct.gov/-/media/CAES/DOCUMENTS/Publications/Bulletins/b327pdf.pdf (accessed 16 September 2024)
  25. Britton, W.E. (1938) Additions to the check-list of the insects of Connecticut Bulletin No.60. Connecticut State Geological and Natural History Survey, Hartford, Connecticut, 201 pp.
  26. Broemeling, D.K. & Moalif, A.S. (1988) A revision of the Nomada subgenus Pachynomada (Hymenoptera: Anthophoridae), Pan-Pacific Entomologist, 64 (3), 201–227. [https://www.cabidigitallibrary.org/doi/full/10.5555/19901135759]
  27. 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.
  28. Brumley, R.L. (1965) A Revision of the Bee Genus Epeolus Latreille of Western America North of Mexico. MSc thesis, Utah State University, Logan, Utah, 92 pp. [https://digitalcommons.usu.edu/etd/2682/]
  29. 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. [https://www.entsocont.ca/uploads/3/0/2/6/30266933/136_37_52.pdf]
  30. 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 (6127), 1611–1615. https://doi.org/10.1126/science.1232728
  31. Bushmann, S.L. & Drummond, F.A. (2015) Abundance and diversity of wild bees (Hymenoptera: Apoidea) found in lowbush blueberry growing regions of downeast Maine. Environmental Entomology, 44 (4), 975–989. https://doi.org/10.1093/ee/nvv082
  32. Butler, B.J. (2016) Forests of Connecticut. 2015. US Department of Agriculture, Forest Service, Northern Research Station. Resource Update FS-83. United States Department of Agriculture, Forest Service, Northern Research Station, Newtown Square, Pennsylvania, 4 pp. https://doi.org/10.2737/FS-RU-83
  33. 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
  34. Callaghan, C.T., Mesaglio, T., Ascher, J.S., Brooks, T.M., Cabras, A.A., Chandler, M., Cornwell, W.K., Ríos-Málaver, I.C., Dankowicz, E., Dhiya’ulhaq, N.U., Fuller, R.A., Galindo-Leal, C., Grattarola, F., Hewitt, S., Higgins, L., Hitchcock, C., Hung, K.-L.-J., Iwane, T., Kahumbu, P., Kendrick, R., Kieschnick, S.R., Kunz, G., Lee, C.C., Lin, C.-T., Loarie, S., Medina, M.N., McGrouther, M.A., Miles, L., Modi, S., Nowak, K., Oktaviani, R., Olewe, B.M.W., Pagé, J., Petrovan, S., Saari, C., Seltzer, C.E., Seregin, A.P., Sullivan, J.J., Sumanapala, A.P., Takoukam, A., Widness, J., Willmott, K., Wüster, W. & Young, A.N. (2022) The benefits of contributing to the citizen science platform iNaturalist as an identifier. PLoS Biology, 20 (11), e3001843, 1–6. https://doi.org/10.1371/journal.pbio.3001843
  35. Camilo, G.R., Muñiz, P.A., Arduser, M.S. & Spevak, E.M. (2017) A checklist of the bees (Hymenoptera: Apoidea) of St. Louis, Missouri, USA. Journal of the Kansas Entomological Society, 90 (3), 175–188. https://doi.org/10.2317/0022-8567-90.3.175
  36. Cane, J.H., Eickwort, G.C., Wesley, F.R. & Spielholz, J. (1985) Pollination ecology of Vaccinium stamineum (Ericaceae: Vaccinioideae). American Journal of Botany, 72, 135–142. https://doi.org/10.1002/j.1537-2197.1985.tb05351.x
  37. Cane, J.H. & Payne, J.A. (1988) Foraging ecology of the bee Habropoda laboriosa (Hymenoptera: Anthophoridae), an oligolege of blueberries (Ericaceae: Vaccinium) in the southeastern United States. Annals of the Entomological Society of America, 81, 419–427. https://doi.org/10.1093/aesa/81.3.419
  38. Cane, J.H. (1989) Nesting biology notes for Perdita (Alloperdita) bradleyi Viereck (Hymenoptera: Andrenidae). Journal of the Kansas Entomological Society, 62 (1), 140–143. [https://www.jstor.org/stable/25085065]
  39. Cane, J.H. (1994) Nesting biology and mating behavior of the Southeastern Blueberry Bee, Habropoda laboriosa (Hymenoptera: Apoidea). Journal of the Kansas Entomological Society, 67 (3), 236–241. [https://www.jstor.org/stable/25085519]
  40. Cane, J.H., Schiffhauer, D. & Kervin, L.J. (1996) Pollination, foraging, and nesting ecology of the leaf-cutting bee Megachile (Delomegachile) addenda (Hymenoptera: Megachilidae) on cranberry beds. Annals of the Entomological Society of America, 89 (3), 361–367. https://doi.org/10.1093/aesa/89.3.361
  41. Center for Biological Diversity & Bombus Pollinators Association of Law Students (2021) Petition to list the American Bumble Bee Bombus pensylvanicus (DeGeer, 1973) as an endangered species under the United States Endangered Species Act. Available from: https://ecos.fws.gov/docs/tess/petition/933.pdf (accessed 16 September 2024)
  42. Chan, D.S., Prosser, R.S., Rodriguez-Gil, J.L. & Raine, N.E. (2019) Assessment of risk to hoary squash bees (Peponapis pruinosa) and other ground-nesting bees from systemic insecticides in agricultural soil. Science Reports, 9, 1–13. https://doi.org/10.1038/s41598-019-47805-1
  43. Chesshire, P., Fischer, E., Dowdy, N., Griswold, T., Hughes, A., Orr, M., Ascher, J.S., Guzman, L., Hung, K.-L., Cobb, N.S. & McCabe, L.L. (2023) Completeness analysis for over 3000 United States bee species identifies persistent data gaps. Ecography, 2023 (5), e06584, 1–13. https://doi.org/10.1111/ecog.06584
  44. Cockerell, T.D.A. (1898a) Notes on some bees of the genus Andrena from Hartford, Connecticut. The Canadian Entomologist, 30 (4), 103–104. https://doi.org/10.4039/Ent30103-4
  45. Cockerell, T.D.A. (1898b) A southern type of Andrena in Connecticut. Entomological News, 9, 171. [https://digitalcommons.usu.edu/cgi/viewcontent.cgi?article=1238&context=bee_lab_ca]
  46. Cockerell, T.D.A. (1902) XX.-North American bees of the genus Andrena. Annals and Magazine of Natural History, Series 7, 9 (50), 101–106. https://doi.org/10.1080/00222930208678552
  47. Cockerell, T.D.A. (1908) Bees of the genus Nomada, belonging to the group of N. depressa Cresson. Entomological News, 19, 323. [https://digitalcommons.usu.edu/bee_lab_ca/400]
  48. Cockerell, T.D.A. (1917) Sunflower insects in Virginia and Connecticut. Canadian Entomologist, 49 (6), 212.
  49. https://doi.org/10.4039/Ent49212-6
  50. Coelho, B.W.T (2004) A review of the bee genus Augochlorella (Hymenoptera: Halictidae: Augochlorini). Systematic Entomology, 29 (3), 282–323. https://doi.org/10.1111/j.0307-6970.2004.00243.x
  51. Colla, S.R., Gadallah, F., Richardson, L., Wagner, D. & Gall, L. (2012a) Assessing declines of North American bumble bees (Bombus spp.) using museum specimens. Biodiversity and Conservation, 21 (14), 3585–359. https://doi.org/10.1007/s10531-012-0383-2
  52. 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. (2012b) Documenting persistence of most eastern North American bee species (Hymenoptera: Apoidea: Anthophila) 1990–2009. Journal of the Kansas Entomological Society, 85 (1), 14–22. https://doi.org/10.2317/jkes110726.1
  53. Connecticut Agricultural Experiment Station Arthropod Collection (2023) Occurrence dataset (ID: 16fca9c2-f622-4cb1-aef0-3635a7be5aeb). Accessed via the Ecdysis Portal, ecdysis.org. Available from: https://ecdysis.org/content/dwca/CAES-CAES_DwC-A.zip (accessed 16 September 2024)
  54. Connecticut Department of Energy and Environmental Protection (2015a) Connecticut Wildlife Action Plan, 2015 Revision, Creating a vision for the future of wildlife conservation. Available from: https://portal.ct.gov/-/media/DEEP/wildlife/pdf_files/nongame/CTWAP/CTWAPChapter2pdf (accessed 16 September 2024)
  55. Connecticut Department of Energy and Environmental Protection (2015b) Connecticut’s endangered, threatened, and special concern species 2015. Available from: https://portal.ct.gov/DEEP/Endangered-Species/Endangered-Species-Listings/Endangered-Threatened--Special-Concern-Invertebrates (accessed 16 September 2024)
  56. Connecticut Department of Energy and Environmental Protection (2018) Living on the Shore: Tidal Wetlands. Available from: https://portal.ct.gov/DEEP/Coastal-Resources/Living-on-the-Shore-Brochure/Tidal-Wetlands (accessed 16 September 2024)
  57. Connecticut Department of Transportation (2019) DOT designates 50 more sites as part of its “Pollinator Corridor Program.”. Available from: https://portal.ct.gov/DOT/CTDOT-Press-Releases/2019/DOT-Designates-50-More-Sites-as-Part-of-its-Pollinator-Corridor-Program (accessed 16 September 2024)
  58. Connecticut General Assembly (2016) An act concerning pollinator health. Public Act No. 16-17. Available from: https://cga.ct.gov/2016/act/pa/pdf/2016PA-00017-R00SB-00231-PA.pdf (accessed 16 September 2024)
  59. Connecticut Invasive Plant Working Group (2022) Invasive Plant List. Available from: https://cipwg.uconn.edu/invasive_plant_list/ (accessed 16 September 2024)
  60. Connecticut Land Conservation Council (2019) Information on powerline right-of-way vegetation management. Available from: https://ctconservation.org/resources/information-on-powerline-right-of-way-vegetation-management/ (accessed 16 September 2024)
  61. Cooper, K.W. (1984) Discovery of first resident population of the European bee, Megachile apicalis in the United States (Hymenoptera: Megachilidae). Entomological News, 95 (5), 225–226.
  62. Corbin, L.A., Awde, D.N. & Richards, M.H. (2021) Phenological and social characterization of three Lasioglossum (Dialictus) species inferred from long-term trapping collections. Journal of Hymenoptera Research, 88, 1738. https://doi.org/10.3897/jhr.88.73220
  63. Cresson, E.T. (1863a) List of the North American species of Bombus and Apathus. Proceedings of the Entomological Society of Philadelphia, 2, 83–116. [https://digitalcommons.usu.edu/bee_lab_co/386]
  64. Cresson, E.T. (1863b) On the North American species of Nomada. Proceedings of the Entomological Society of Philadelphia, 2, 280–312.
  65. Cresson, E.T. (1864a) On the North American species of several genera of Apidae. Proceedings of the Entomological Society of Philadelphia, 2, 373–411. [https://digitalcommons.usu.edu/bee_lab_co/389]
  66. Cresson, E.T. (1864b) On the North American species of the genus Osmia. Proceedings of the Entomological Society of Philadelphia, 3, 17–38. [https://digitalcommons.usu.edu/bee_lab_co/390]
  67. Cresson, E.T. (1916) The Cresson types of Hymenoptera. Memoirs of the American Entomological Society, 1, 1–141.
  68. Cresson, E.T. (1928) The types of Hymenoptera in the Academy of Natural Sciences of Philadelphia other than those of Ezra T. Cresson. Memoirs of the American Entomological Society, 5, 1–90. [https://digitalcommons.usu.edu/bee_lab_co/404/]
  69. Daly, H.V. (1973) Bees of the genus Ceratina in America north of Mexico (Hymenoptera: Apoidea). University of California Publications in Entomology, 74, 1–114.
  70. Delphia, C.M. (2023) Chelostoma Latreille, 1809 (Hymenoptera: Megachilidae) of Montana, including first records of the introduced bees Chelostoma campanularum (Kirby, 1802) and Chelostoma rapunculi (Lepeletier, 1841), The Pan-Pacific Entomologist, 99 (2), 153–168. https://doi.org/10.3956/2022-99.2.153
  71. Deyrup, M., Edirisinghe, J. & Norden, B. (2002) The diversity and floral hosts of bees at the Archbold Biological Station, Florida (Hymenoptera: Apoidea). Insecta Mundi, 16 (13), 87–120. [https://digitalcommons.unl.edu/insectamundi/544]
  72. Dibble, A.C., Drummond, F.A., Stubbs, C., Veit, M. & Ascher, J.S. (2017) Bees of Maine, with a state species checklist. Northeastern Naturalist, 24 (15), 1–48. https://doi.org/10.1656/045.024.m1503
  73. Didham, R.K., Basset, Y., Collins, C.M., Leather, S.R., Littlewood, N.A., Menz, M.H., Müller, J., Packer, L., Saunders, M.E., Schönrogge, K., Stewart, A.J.A., Yanoviak, S.P. & Hassall, C. (2020) Interpreting insect declines: seven challenges and a way forward. Insect Conservation and Diversity, 13 (2), 103–114. https://doi.org/10.1111/icad.12408
  74. Dingman, D.W. (2015) Comparative analysis of Paenibacillus larvae genotypes isolated in Connecticut. Archives of Microbiology, 197, 789–795. https://doi.org/10.1007/s00203-015-1113-4
  75. Donovall, L.R. & vanEngelsdorp, D. (2010) A checklist of the bees (Hymenoptera: Apoidea) of Pennsylvania. Journal of the Kansas Entomological Society, 83 (1), 7–24. https://doi.org/10.2317/JKES808.29.1
  76. 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. [https://digitalcommons.usu.edu/bee_lab_da/202]
  77. 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
  78. Dorey, J.B., Fischer, E.E., Chesshire, P.R., Nava-Bolaños, A., O’Reilly, R.L., Bossert, S., Collins, S.M., Lichtenberg, E.M., Tucker, E.M., Smith-Pardo, A., Falcon-Brindis, A., Guevara, D.A., Ribeiro, B., de Pedro, D., Pickering, J., Hung, K.-L.J., Parys, K.A., McCabe, L.M., Rogan, M.S., Minckley, R.L., Velazco, S.J.E., Griswold, T., Zarrillo, T.A., Jetz, W., Sica, Y.V., Orr, M.C., Guzman, L.M., Ascher, J.S., Hughes, A.C. & Cobb, N.S. (2023) A globally synthesised and flagged bee occurrence dataset and cleaning workflow. Scientific Data, 10, 747. https://doi.org/10.1038/s41597-023-02626-w
  79. Drexel University, The Academy of Natural Sciences (undated) Entomology Type Collection. Available from: http://clade.ansp.org/entomology (accessed 16 September 2024)
  80. Dreyer, G.D. & Niering, W.A. (1986) Evaluation of two herbicide techniques on electric transmission rights-of-way: development of relatively stable shrublands. Environmental Management, 10, 113–118. https://doi.org/10.1007/bf01866423
  81. Droege, S., Rightmyer, M.G., Sheffield, C.S. & Brady, S.G. (2010a) New synonymies in the bee genus Nomada from North America (Hymenoptera: Apidae). Zootaxa, 2661 (3), 1–32.
  82. https://doi.org/10.11646/zootaxa.2661.1.1
  83. Droege, S., Tepedino, V.J., LeBuhn, G., Link, W., Minckley, R.L., Chen, Q. & Conrad, C. (2010b) Spatial patterns of bee captures in North American bowl trapping surveys. Insect Conservation and Diversity, 3 (1), 15–23. https://doi.org/10.1111/j.1752-4598.2009.00074.x
  84. Droege, S. (2020) USGS PWRC Native Bee Inventory and Monitoring Lab dataset. Available from: https://www.idigbio.org/portal/recordsets/7c3067c3-c229-4e73-b4aa-c187997ee530 (accessed 16 September 2024)
  85. Droege, S. & Maffei, C. (2023) Insect species occurrence data from multiple projects worldwide with focus on bees and wasps in North America. Version 1.10. United States Geological Survey. Available from: https://www.gbif.org/dataset/f519367d-6b9d-411c-b319-99424741e7de (accessed 13 September 2024)
  86. Dumesh, S. & Sheffield, C.S. (2012) Bees of the genus Dufourea Lepeletier (Hymenoptera: Halictidae: Rophitinae) of Canada. Canadian Journal of Arthropod Identification, 20 (20), 1–36.
  87. Dyer, J.G. & Shinn, A.F. (1978) Pollen collected by Calliopsis andreniformis Smith in North America (Hymenoptera: Andrenidae). Journal of the Kansas Entomological Society, 51 (4), 787–795. [https://www.jstor.org/stable/25083868]
  88. Eickwort, G.C. (1977) Aspects of the nesting biology and descriptions of immature stages of Perdita octomaculata and P. halictoides (Hymenoptera: Andrenidae). Journal of the Kansas Entomological Society, 50 (4), 577–599. [https://www.jstor.org/stable/25082987]
  89. Eickwort, G. C. (1980) Two European species of Chelostoma established in New York State (Hymenoptera: Megachilidae). Psyche: A Journal of Entomology, 87 (3-4), 315–323. https://doi.org/10.1155/1980/24124
  90. Engel, M.S. (1999) The taxonomy of recent and fossil honey bees (Hymenoptera: Apidae; Apis). Journal of Hymenoptera Research, 8, 165–96.
  91. Falk, S. & Lewington, R. (2015) Field guide to the bees of Great Britain and Ireland. Bloomsbury Publishing, London, 432 pp.
  92. Flórez-Gómez, N. & Danforth, B. (2023) The North American bees of the genus Ptilothrix Cresson, 1878 (Hymenoptera, Apidae, Emphorini), with the description of two new species. Journal of Hymenoptera Research, 95, 275–293. https://doi.org/10.3897/jhr.95.96025
  93. Foster, D.R. & Motzkin, G. (2003) Interpreting and conserving the openland habitats of coastal New England: Insights from landscape history. Forest Ecology and Management, 185, 127–150. https://doi.org/10.1016/S0378-1127(03)00251-2
  94. Freitas, F.V., Branstetter, M.G., Franceschini-Santos, V.H., Dorchin, A., Wright, K.W., López-Uribe, M. M., Griswold, T., Silveira, F.A. & Almeida, E.A. (2023) UCE phylogenomics, biogeography, and classification of long-horned bees (Hymenoptera: Apidae: Eucerini), with insights on using specimens with extremely degraded DNA. Insect Systematics and Diversity, 7 (4), 3. https://doi.org/10.1093/isd/ixad012
  95. Fye, R.E. (1965) Biology of Apoidea taken in trap nests in Northwestern Ontario (Hymenoptera). The Canadian Entomologist, 97 (8), 863–877.
  96. https://doi.org/10.4039/ent97863-8
  97. Gardner, K. & Ascher, J.A. (2006) Notes on the native bee pollinators in New York apple orchards. Journal of the New York Entomological Society, 114, 86–91. https://doi.org/10.1664/0028-7199(2006)114[86:NOTNBP]2.0.CO;2
  98. Gardner, J. & Gibbs, J. (2022) New and little-known Canadian Lasioglossum (Dialictus) (Hymenoptera: Halictidae) and an emended key to species. The Canadian Entomologist 154(1): e3. https://doi.org/10.4039/tce.2021.47
  99. 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), 1–222. https://doi.org/10.5852/ejt.2023.858.2041
  100. Gall, L. (2023) Entomology Division, Yale Peabody Museum. Yale University Peabody Museum. Occurrence dataset. Available from: https://www.gbif.org/ (accessed 30 January 2023) https://doi.org/10.15468/95waq3
  101. Gibbs, J. (2009) Integrative taxonomy identifies new (and old) species in the Lasioglossum (Dialictus) tegulare (Robertson) species group (Hymenoptera, Halictidae). Zootaxa, 2032 (1), 1–38. https://doi.org/10.11646/zootaxa.2032.1.1
  102. 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
  103. 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
  104. Gibbs, J. (2012) Two replacement names for North American Lasioglossum (Dialictus) (Hymenoptera: Halictidae). Journal of the Kansas Entomological Society, 85 (3), 259–261. https://doi.org/10.2317/JKES120424.1
  105. Gibbs, J. (2018) DNA barcoding a nightmare taxon: assessing barcode index numbers and barcode gaps for sweat bees. Genome, 61 (1), 21–31. https://doi.org/10.1139/gen-2017-0096
  106. 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), 1–117. https://doi.org/10.11646/zootaxa.3672.1.1
  107. Gibbs, J., Ascher, J.S., Rightmyer, M.G. & Isaacs, R. (2017a) 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
  108. Gibbs, J., Joshi, N.K., Wilson, J.K., Rothwell, N.L., Powers, K., Haas, M., Gut, L., Biddinger, D.J. & Isaacs, R. (2017b) Does passive sampling accurately reflect the bee (Apoidea: Anthophila) communities pollinating apple and sour cherry orchards? Environmental Entomology, 46, 579–588. https://doi.org/10.1093/ee/nvx069
  109. 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. The Canadian Entomologist, 155, e3, 1-38. https://doi.org/10.4039/tce.2022.45
  110. 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 (2), 208–231.
  111. Goldstein, P.Z. & Ascher, J.S. (2016) Taxonomic and behavioral composition of an island fauna: A survey of bees (Hymenoptera: Apoidea: Anthophila) on Martha’s Vineyard, Massachusetts. Proceedings of the Entomological Society of Washington, 118 (1), 37–92. https://doi.org/10.4289/0013-8797.118.1.37
  112. 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 (2), 221–425. https://doi.org/10.1111/zoj.12017
  113. 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
  114. Grixti, J.C. & Packer, L. (2006) Changes in the bee fauna (Hymenoptera: Apoidea) of an old field site in southern Ontario, revisited after 34 years. The Canadian Entomologist, 138 (2), 147–164. https://doi.org/10.4039/n05-034
  115. Grixti, J.C., Wong, L.T., Cameron, S.A. & Favret, C. (2009) Decline of bumble bees (Bombus) in the North American Midwest. Biological Conservation, 142 (1), 75–84. https://doi.org/10.1016/j.biocon.2008.09.027
  116. Gruver, A.M. & CaraDonna, P.J. (2020) First records of Megachile apicalis (Hymenoptera: Megachilidae) for Illinois found in heavily urbanized areas within the city of Chicago. The Great Lakes Entomologist, 53 (1), 6.
  117. Hall, H.G., Almquist, D.T. & Ascher, J.S. (2016) A new species of Colletes (Hymenoptera: Apoidea: Colletidae) from northern Florida and Georgia, with notes on the Colletes of those states. Journal of Melittology, 58, 1–20. https://doi.org/10.17161/jom.v0i58.4993
  118. Hammerson, G.A. (2004) Connecticut Wildlife: Biodiversity, Natural History and Conservation. University of New England Press, Lebanon, New Hampshire, 46 pp.
  119. Hardy, S., Hallworth, M.T., Ferguson, M., Sharp, N., Loomis, J., Anderson, E. & McFarland, K. (2022) The State of Vermont’s Wild Bees 2022. Available from: https://stateofbees.vtatlasoflife.org/ (accessed 16 September 2024)
  120. Hardy, S., Richardson, L., Veit, M., Milam, J., Ferguson, M. & McFarland, K.P. (2021) Vermont Atlas of Life Wild Bee Survey. Vermont Center for Ecostudies. Available from: https://val.vtecostudies.org/projects/vtbees/species/ (accessed 16 September 2024)
  121. Hatfield, R., Jepson, S., Thorp, R., Richardson, L. & Colla, S. (2014) Bombus citrinus, The IUCN red list of threatened species. Available from: https://www.iucnredlist.org/species/44937676/68983052 (accessed 16 September 2024)
  122. Hatfield, R., Jepson, S., Thorp, R., Richardson, L. & Colla, S. (2015a) Bombus terricola. The IUCN red list of threatened species. Available from: https://www.iucnredlist.org/species/44937505/46440206 (accessed 16 September 2024)
  123. Hatfield, R., Jepson, S., Thorp, R., Richardson, L, Colla, S. & Foltz Jordan, S. (2015b) Bombus fervidus. The IUCN red list of threatened species. Available from: https://www.iucnredlist.org/species/21215132/21215225 (accessed 16 September 2024)
  124. Hurd, P.D. (1956) Notes on the subgenera of the New World carpenter bees of the genus Xylocopa (Hymenoptera, Apoidea). American Museum Novitates, 776, 1–7.
  125. Hurd, P.D. (1979) Superfamily Apoidea. In: Krombein, K.V., Hurd Jr., P.D., Smith, D.R. & Burks, B.D. (Eds.), Catalogue of Hymenoptera in America North of Mexico. Smithsonian Institution Press, Washington, D.C., pp. 1741–2209.
  126. Hurd, P.D. & Linsley, E.G. (1972) Parasitic bees of the genus Holcopasites Ashmead (Hymenoptera: Apoidea). Smithsonian Contributions to Zoology, 114, 1–41. https://doi.org/10.5479/si.00810282.114
  127. Hurd, P.D., LaBerge, W.E. & Linsley, E.G. (1980) Principal sunflower bees of North America with emphasis on the Southwestern United States (Hymenoptera, Apoidea). Smithsonian Contributions to Zoology, 310, 1–158. https://doi.org/10.5479/si.00810282.310
  128. Ikerd, H. (2019) Bee Biology and Systematics Laboratory. USDA-ARS Pollinating Insect-Biology, Management, Systematics Research. Occurrence dataset. Available from: https://www.gbif.org/ (accessed 30 January 2023) https://doi.org/10.15468/anyror
  129. Jacobson, M. (2021) Response of wild pollinator assemblages to management of restored wetlands in Central New York, USA. MSc. Thesis, The State University of New York, Syracuse, New York, 139 pp.
  130. Jaycox, E.R. (1967) An adventive Anthidium in New York State (Hymenoptera: Megachilidae). Journal of the Kansas Entomological Society, 40, 124–126. [https://www.jstor.org/stable/25083603]
  131. Kerr, J.T., Pindar, A., Galpern, P., Packer, L., Potts, S.G., Roberts, S.M., Rasmont, P., Schweiger, O., Colla, S.R., Richardson, L.L. & Wagner, D.L. (2015) Climate change impacts on bumblebees converge across continents. Science, 349 (6244), 177–180. https://doi.org/10.1126/science.aaa7031
  132. 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
  133. 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, 81, 181–189. https://doi.org/10.3897/jhr.81.62634
  134. King, D.I. & Schlossberg, S. (2014) Synthesis of the conservation value of the early- successional stage in forests of eastern North America. Forest Ecology and Management, 324, 186–195. https://doi.org/10.1016/j.foreco.2013.12.001
  135. Kleijn, D., Winfree, R., Bartomeus, I., Carvalheiro, L.G., Henry, M., Isaacs, R., Klein, A.M., Kremen, C., M’gonigle, L.K., Rader, R. & Ricketts, T.H. (2015) Delivery of crop pollination services is an insufficient argument for wild pollinator conservation. Nature communications, 6 (1), 1–9. https://doi.org/10.1038/ncomms8414
  136. Kloet, S.P.V. (1976) Nomenclature, taxonomy, and biosystematics of Vaccinium section cyanococcus (the blueberries) in North America, I. Natural barriers to gene exchange between Vaccinium angustifolium Ait. and Vaccinium corymbosum L. Rhodora, 78 (815), 503–515. [https://www.jstor.org/stable/23311226]
  137. Koch, J.B., Lozier, J., Strange, J.P., Ikerd, H., Griswold, T., Cordes, N., Solter, L., Stewart, I. & Cameron, S.A. (2015) USBombus, a database of contemporary survey data for North American Bumble Bees (Hymenoptera, Apidae, Bombus) distributed in the United States. Biodiversity Data Journal, 3, e6833. https://doi.org/10.3897/BDJ.3.e6833
  138. Koch, J.B., Rodriguez, J., Pitts, J.P. & Strange, J.P. (2018) Phylogeny and population genetic analyses reveals cryptic speciation in the Bombus fervidus species complex (Hymenoptera: Apidae). PloS one, 13 (11), e0207080. https://doi.org/10.1371/journal.pone.0207080
  139. Kuhlman, M. & Burrows, S. (2017) Checklist of bees (Apoidea) from a private conservation property in west-central Montana. Biodiversity Data Journal, 5, e11506. https://doi.org/10.3897/BDJ.5.e11506
  140. Kuhlmann, M. & Ascher, J.S. (2010) Two new synonymies of eastern North American Colletes Latr. species described from Japan (Hymenoptera: Colletidae. Entomological News, 121 (4), 325–328. https://doi.org/10.3157/021.121.0404
  141. Kuzovkina, Y., Campanelli, J., Schulthess, C.P., Ricard, R. & Dreyer, G. (2016) Effective establishment of native grasses on roadsides in New England. Other Publications and Reports, 2. Available from: https://digitalcommons.conncoll.edu/arboretum_otherpubs/2 (accessed 23 December 2024)
  142. 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
  143. 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. https://doi.org/10.5962/p.376392
  144. 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
  145. 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.
  146. 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. [https://www.jstor.org/stable/25077972]
  147. 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. [https://www.jstor.org/stable/25078019]
  148. 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. [https://www.jstor.org/stable/25078133]
  149. LaBerge, W.E. (1977) A revision of the bees of the genus Andrena of the Western Hemisphere. Part VIII. Subgenera Thysandrena, Dasyandrena, Psammandrena, Rhacandrena, Euandrena, and Oxyandrena. Transactions of the American Entomological Society, 103, 1–143. [https://www.jstor.org/stable/25078201]
  150. 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. [https://www.jstor.org/stable/25078273]
  151. 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. [https://www.jstor.org/stable/25078376]
  152. LaBerge, W.E. (1986a) 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. [https://www.jstor.org/stable/25078392]
  153. LaBerge, W.E. (1986b) The zoography of Andrena Fabricius (Hymenoptera: Andrenidae) of the Western Hemisphere. Proceedings of the Ninth North American Prairie Conference, 110–114.
  154. LaBerge, W.E. (1989) A revision of the bees of the genus Andrena of the Western Hemisphere. Part XIII Subgenera Simandrena and Taeniadrena. Transactions of the American Entomological Society, 115, 1–56. [https://www.jstor.org/stable/25078446]
  155. LaBerge, W.E. & Bouseman, J.K. (1970) A revision of the bees of the genus Andrena of the Western Hemisphere. Part III Tylandrena. Transactions of the American Entomological Society, 96, 543–605. [https://www.jstor.org/stable/25078004]
  156. LaBerge, W.E. & Ribble, D.W. (1972) A revision of the bees of the genus Andrena of the Western Hemisphere. Part V. Subgenera Gonandrena, Geissandrena, Parandrena, Pelicandrena. Transactions of the American Entomological Society, 98, 271–358. [https://www.jstor.org/stable/25078115]
  157. 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. [https://www.jstor.org/stable/25078177]
  158. 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
  159. Laverty, T.M. & Harder, L.D. (1988) The bumble bees of eastern Canada. The Canadian Entomologist. 120 (11), 965–987. https://doi.org/10.4039/Ent120965-11
  160. 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. Science Reports, 10, 18745. https://doi.org/10.1038/s41598-020-75566-9
  161. Le Divelec, R. & Dufrêne, É. (2020) Sur l’identité du mâle de Coelioxys coturnix Pérez 1884 (Hymenoptera-Megachilidae). Osmia, 8, 5–10. https://doi.org/10.47446/OSMIA8.1
  162. Lerman, S.B. & Milam, J. (2016) Bee fauna and floral abundance within lawn-dominated suburban yards in Springfield, MA. Annals of the Entomological Society of America, 109 (5), 713–723. https://doi.org/10.1093/aesa/saw043
  163. Lewis, R. (2001) Geology of the lower Connecticut River Valley. In: Dreyer, G.D. & Caplis, M. (Eds.), Living resources and habitats of the lower Connecticut River. Bulletin 37. Connecticut College Arboretum, New London, Connecticut, pp. 11–17.
  164. 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 (2), 5. https://doi.org/10.1093/isd/ixab007
  165. Litt, R. (1998) Observations sur Andrena clarkella (Kirby 1802) (Hymenoptera Apoidea Andrenidae). Lambillionea, 98 (2), 267–270.
  166. Litman, J.R., Griswold, T. & Danforth, B.N. (2016) Phylogenetic systematics and a revised generic classification of anthidiine bees (Hymenoptera: Megachilidae). Molecular Phylogenetics and Evolution, 100, 183–198. https://doi.org/10.1016/j.ympev.2016.03.018
  167. Lovell, J.H. (1905) Four new species of Halictus from Maine. The Canadian Entomologist, 37 (2), 39–40. https://doi.org/10.4039/ent3739-2
  168. Lovell, J.H. (1908) The Halictidae of Southern Maine. Psyche, 15, 32–42. https://doi.org/10.1155/1908/53473
  169. Maier, C.T. (2005) First records of alien insects in Connecticut (Orthoptera: Tettigoniidae; Coleoptera: Buprestidae, Chrysomelidae; Diptera: Rhagionidae, Tephritidae; Hymenoptera: Megachilidae). Proceedings of the Entomological Society of Washington, 107 (4), 947–959.
  170. Maier, C.T. (2009) New distributional records of three alien species of Megachilidae (Hymenoptera) from Connecticut and nearby states. Proceedings of the Entomological Society of Washington, 111 (4), 775–784. https://doi.org/10.4289/0013-8797-111.4.775
  171. Martins, R.P., Guimaraes, F.G. & Dias, C.M. (1996) Nesting biology of Ptilothrix plumata Smith, with a comparison to other species in the genus (Hymenoptera: Anthophoridae). Journal of the Kansas Entomological Society, 69, 9–16. [https://www.jstor.org/stable/25085644]
  172. Master, L.L., Faber-Langendoen, D., Bittman, R., Hammerson, G.A., Heidel, B., Ramsay, L., Snow, K., Teucher, A. & Tomaino, A. (2012) NatureServe Conservation Status Assessments: Factors for evaluating species and ecosystem risk. NatureServe, Arlington, Virginia. [unknown pagination]
  173. Matthews, R.W. (1965) The biology of Heriades carinata (Hymenoptera: Megachilidae). Contributions of the American Entomological Institute, 1, 1–33. https://doi.org/10.25335/M5N58CM9P
  174. Mathiasson, M.E. & Rehan, S.M. (2019) Status changes in the wild bees of north‐eastern North America over 125 years revealed through museum specimens. Insect Conservation and Diversity, 12 (4), 278–288. https://doi.org/10.1111/icad.12347
  175. McElrath, T. (2023) Illinois Natural History Survey Insect Collection. Illinois Natural History Survey. Occurrence dataset. Available from: https://www.gbif.org/ (accessed 30 January 2023) https://doi.org/10.15468/eol0pe
  176. 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
  177. 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
  178. Medler, J.T. (1967) Hoplitis cylindrica in trap nests in Wisconsin (Hymenoptera: Megachilidae). Journal of the Kansas Entomological Society, 40, 137–140. [https://www.jstor.org/stable/25083610]
  179. Mehrhoff, L.J. (2000) Immigration and expansion of the New England flora. Rhodora 102, 280–298. [https://www.jstor.org/stable/23313382]
  180. Metzler, K.J. & Barrett, J.P. (2006) The vegetation of Connecticut: A preliminary classification. Report of Investigations. No. 12. State Geological and Natural History Survey of Connecticut, Hartford, Connecticut, 109 pp.
  181. Metzler, J.K. & Wagner, D.L. (1998) Thirteen of Connecticut’s Most Imperiled Ecosystems. Available from: https://ctconservation.org/wp-content/uploads/Most-Imperiled-CT-Communities.pdf (accessed 16 November 2022)
  182. Michener, C.D. (1938) American bees of the genus Heriades. Annals of the Entomological Society of America, 31 (4), 514–531. https://doi.org/10.1093/aesa/31.4.514
  183. Michener, C.D. (1947) A revision of the American species of Hoplitis (Hymenoptera, Megachilidae). Bulletin of the American Museum of Natural History, 89 (4), 257–318.
  184. Michener, C.D. (2007) Bees of the World. 2nd Edition. John Hopkins University Press, Baltimore, Maryland, 953 pp.
  185. Michener, C.D. & Rettenmeyer, C.W. (1956) The ethology of Andrena erythronii with comparative data on other species (Hymenoptera, Andrenidae). University of Kansas Science Bulletin, 37, 645–684. [https://digitalcommons.usu.edu/bee_lab_mc/117]
  186. Michez, D. & Eardley, C. (2007) Monographic revision of the bee genus Melitta Kirby 1802 (Hymenoptera: Apoidea: Melittidae). Annales de la Société Entomologique de France, 43 (4), 379–440.
  187. https://doi.org/10.1080/00379271.2007.10697535
  188. Milam, J.C., Litvaitis, J.A., Warren, A., Keirstead, D. & King, D.I. (2018) Bee assemblages in managed early-successional habitats in southeastern New Hampshire. Northeastern Naturalist, 25 (3) 437–459. https://doi.org/10.1656/045.025.0309
  189. 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 (10), 669. https://doi.org/10.3390/insects11100669
  190. Milam, J., Cunningham‐Minnick, M., Roberts, H.P., Buelow, C. & King, D.I. (2022) The contribution of canopy samples to assessments of forestry effects on native bees. Conservation Science and Practice, 4 (6), e12690. https://doi.org/10.1111/csp2.12690
  191. Milliron, H.E. (1971) A monograph of the Western Hemisphere bumblebees (Hymenoptera: Apidae; Bombinae). I. Memoirs of the Entomological Society of Canada, 103 (S82), 1–80. https://doi.org/10.4039/entm10382fv
  192. Milliron, H.E. (1973a) A monograph of the Western Hemisphere bumblebees (Hymenoptera: Apidae: Bombinae). II. Memoirs of the Entomological Society of Canada, 105 (S89), 81–235. https://doi.org/10.4039/entm10589fv
  193. Milliron, H.E. (1973b) A monograph of the Western Hemisphere bumblebees (Hymenoptera: Apidae: Bombinae). III. Memoirs of the Entomological Society of Canada, 105 (S89), 239–333. https://doi.org/10.4039/entm10591fv
  194. Mitchell, T.B. (1933) A revision of the genus Megachile in the Nearctic region. Part I. Classification and descriptions of new species (Hymenoptera: Megachilidae). Transactions of the American Entomological Society, 59, 295–361. [https://www.jstor.org/stable/25077304]
  195. 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. [https://www.jstor.org/stable/25077331]
  196. 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, 55–205. [https://www.jstor.org/stable/25077339]
  197. 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. [https://www.jstor.org/stable/25077371]
  198. 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. [https://www.jstor.org/stable/25077381]
  199. 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, 45–83. [https://www.jstor.org/stable/25077387]
  200. 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. [https://www.jstor.org/stable/25077393]
  201. 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. [https://www.jstor.org/stable/25077402]
  202. Mitchell, T.B. (1956) New species of Sphecodes from the eastern United States. Journal of the Elisha Mitchell Scientific Society, 72 (2), 206–222. [https://www.jstor.org/stable/24333074]
  203. Mitchell, T.B. (1960) Bees of the Eastern United States: volume 1. The North Carolina Agricultural Experiment Station, 141, 1–538.
  204. Mitchell, T.B. (1962) Bees of the Eastern United States: volume 2. The North Carolina Agricultural Experiment Station, 152, 1–577.
  205. Morris, P.J. (2023) Museum of Comparative Zoology, Harvard University. Version 162.406. Museum of Comparative Zoology, Harvard University. Occurrence dataset. Available from: https://www.gbif.org/ (accessed 30 January 2023) https://doi.org/10.15468/p5rupv
  206. Mosseler, A., Major, J.E., Ostaff, D.P. & Ascher, J.S. (2020) Bee foraging preferences on three willow (Salix) species: effects of species, plant sex, sampling day and time of day. Annals of Applied Biology, 177 (3), 333–345. https://doi.org/10.1111/aab.12621
  207. Moure, J.S. & Hurd, P.D. (1987) An Annotated Catalog of the Halictid Bees of the Western Hemisphere. Smithsonian Institution Press, Washington, D.C., 405 pp.
  208. Müller, A. (2015) Palaearctic Chelostoma bees of the subgenus Gyrodromella (Megachilidae, Osmiini): biology, taxonomy, and key to species. Zootaxa, 3936 (3), 408–420. https://doi.org/10.11646/zootaxa.3936.3.6
  209. National Research Council (2007) Status of Pollinators in North America. National Academies Press, Washington, D.C., 307 pp. https://doi.org/10.17226/11761
  210. Neff, J.L. (2009) The biology of Hoplitis (Robertsonella) simplex (Cresson), with a synopsis of the subgenus Robertsonella Titus. Journal of Hymenoptera Research, 18 (2), 151–166.
  211. New Hampshire Fish and Game Department (2015) New Hampshire Wildlife Action Plan. Available from: https://www.wildlife.nh.gov/wildlife-and-habitat/nh-state-wildlife-action-plan (accessed 16 September 2024)
  212. Niering, W.A. (1958) Principles of sound right-of-way vegetation management. Economic Botany, 12, 140–144. https://doi.org/10.1007/bf02862769
  213. Niering, W.A. & Goodwin, R.H. (1974) Creation of relatively stable shrublands with herbicides: Arresting “succession” on rights-of-way and pastureland. Ecology, 55, 784–795. https://doi.org/10.2307/1934414
  214. Northeast Upland Technical Committee (2006) Managing Grasslands, Shrublands, and Young Forest Habitats for Wildlife: A Guide for the Northeast. Available from: https://portal.ct.gov/deep/wildlife/habitat/managing-grasslands-shrublands-and-young-forest-habitats-for-wildlife-a-guide-for-the-northeast (accessed 4 December 2022)
  215. O’Connor, K.M. (2015) Spatial and Temporal Use of Early Successional Habitat Patches by a Community of Mammals in the Northeastern United States. MSc thesis, University of Connecticut, Storrs, Connecticut, 58 pp.
  216. Odanaka, K.A., Branstetter, M.G., Tobin, K.B. & Rehan, S.M. (2022). Phylogenomics and historical biogeography of the cleptoparasitic bee genus Nomada (Hymenoptera: Apidae) using ultraconserved elements. Molecular Phylogenetics and Evolution, 170, 107453. https://doi.org/10.1016/j.ympev.2022.107453
  217. Olmsted, C.E. (1937) Vegetation of certain sand plains of Connecticut. Botanical Gazette, 99 (2), 209–300. https://doi.org/10.1086/334702
  218. 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
  219. 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
  220. Oram, R.J. (2018) Revision of the genus Hylaeus (Fabricius) (Hymenoptera: Colletidae) in Canada. MSc thesis, The University of Regina, Regina, Saskatchewan, 175 pp.
  221. Ordway, E. (1966) Systematics of the bee genus Augochlorella (Hymenoptera, Halictidae) North of Mexico. The University of Kansas Science Bulletin, 46, 509–624. https://doi.org/10.5962/bhl.part.20079
  222. Ostaff, D.P., Mosseler, A., Johns, R.C., Javorek, S., Klymko, J. & Ascher, J.S. (2015) Willows (Salix spp.) as pollen and nectar sources for sustaining fruit and berry pollinating insects. Canadian Journal of Plant Science, 95 (3), 505–516. https://doi.org/10.4141/cjps-2014-339
  223. Parker, F.D. (1978) An illustrated key to alfalfa leafcutter bees Eutricharaea (Hymenoptera: Megachilidae). Pan-Pacific Entomologist, 54, 61–64.
  224. Parker, F.D. & Bohart, G.E. (1979) Dolichostelis, a new genus of parasitic bees (Hymenoptera: Megachilidae). Journal of the Kansas Entomological Society, 52 (1), 138–153. [https://www.jstor.org/stable/25083888]
  225. Patton, W.H. (1879) Synopsis of the New England species of Colletes. Proceedings of the Boston Society of Natural History, 20, 142–144.
  226. Patton, W.H. (1880) Description of the species of Macropis. Entomologist’s Magazine, 17, 31–35.
  227. 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
  228. Portman, Z.M., Burrows, S.J., Griswold, T., Arduser, M., Irber, A.J., Tonietto, R.K. & Cariveau, D.P. (2019) First records of the adventive Pseudoanthidium nanum (Mocsáry) (Hymenoptera: Megachilidae) in Illinois and Minnesota, with notes on its identification and taxonomy. The Great Lakes Entomologist, 52 (1), 12–20. https://doi.org/10.22543/0090-0222.2336
  229. 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. The Great Lakes Entomologist, 53 (1), 25–40. https://doi.org/10.22543/0090-0222.2363
  230. Portman, Z.M., Arduser, M., Lane, I.G. & Cariveau, D.P. (2022) 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
  231. Portman, Z.M., Gardner, J., Lane, I.G., Gerjets, N., Petersen, J.D., Ascher, J.S., Arduser, M., Evans, E.C., Boyd, C., Thomson, R. & Cariveau, D.P. (2023) A checklist of the bees (Hymenoptera: Apoidea) of Minnesota. Zootaxa, 5304 (1), 1–95. https://doi.org/10.11646/zootaxa.5304.1.1
  232. Portman, Z.M., Arduser, M., Powley, M.E. & Cariveau, D.P. (2024) Taxonomy of Agapostemon angelicus and the A. texanus species complex (Hymenoptera, Halictidae) in the United States. European Journal of Taxonomy, 958, 203–241. https://doi.org/10.5852/ejt.2024.958.2671
  233. 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
  234. Prendergast, K.S., Menz, M.H., Dixon, K.W. & Bateman, P.W. (2020) The relative performance of sampling methods for native bees: an empirical test and review of the literature. Ecosphere, 11 (5), 03076. https://doi.org/10.1002/ecs2.3076
  235. Rajotte, E.G. (1979) Nesting, foraging and pheromone response of the bee Colletes validus Cresson and its association with lowbush blueberries. (Hymenoptera: Colletidae) (Ericaceae: Vaccinium). Journal of the Kansas Entomological Society, 52 (2), 349–361. [https://www.jstor.org/stable/25083914]
  236. Ramos, K.S., Martins, A.C. & Melo, G.A. (2022) Evolution of andrenine bees reveals a long and complex history of faunal interchanges through the Americas during the Mesozoic and Cenozoic. Molecular Phylogenetics and Evolution, 172, 107484. https://doi.org/10.1016/j.ympev.2022.107484
  237. 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, 2873 (1), 35–50. https://doi.org/10.11646/zootaxa.2873.1.3
  238. Rehn, J.A. (1932) Henry Lorenz Viereck. Entomological News, 43, 141–148.
  239. Ribble, D.W. (1967) The monotypic North American subgenus Larandrena of Andrena (Hymenoptera: Apoidea). Bulletin of the University of Nebraska State Museum, 6 (3), 27–42.
  240. 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 (5), 237–394.
  241. 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. [https://www.jstor.org/stable/25078151]
  242. Richards, M.H., Rutgers-Kelly, A., Gibbs, J., Vickruck, J.L., Rehan, S.M. & Sheffield, C. S. (2011) Bee diversity in naturalizing patches of Carolinian grasslands in southern Ontario, Canada. The Canadian Entomologist, 143 (3), 279–299. https://doi.org/10.4039/n11-010
  243. Richardson, L., McFarland, K.P., Zahendra, S. & Hardy, S. (2018) Bumble bee (Bombus) distribution and diversity in Vermont, USA: a century of change. Journal of Insect Conservation, 23 (1), 45–62. https://doi.org/10.1007/s10841-018-0113-5
  244. 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
  245. 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
  246. Roberts, R.B. (1972) Revision of the bee genus Agapostemon (Hymenoptera: Halictidae). The University of Kansas Science Bulletin, 49, 437–590.
  247. Robertson, C. (1890) New North American bees of the genera Halictus and Prosopis. Transactions of the American Entomological Society, 17 (4), 315–318.
  248. Robertson, C. (1895) Notes on bees, with descriptions of new species. Third paper.. Transactions of the American Entomological Society, 22 (2), 115–128. [https://www.jstor.org/stable/25076640]
  249. Robertson, C. (1903) Synopsis of Nomadinæ. The Canadian Entomologist, 35 (6), 172–179. https://doi.org/10.4039/Ent35172-6
  250. Robinson, S.J. (2023) A taxonomic revision of the subgenus Protandrena (Pterosarus) (Hymenoptera: Andrenidae) in Canada and the United States. MSc thesis, The University of Manitoba, Manitoba, 487 pp.
  251. Rothwell, A. & Ginsberg, H.S. (2019) The bee fauna of coastal Napatree Point and two inland sites in southern Rhode Island. Northeastern Naturalist, 26 (3), 446–464. https://doi.org/10.1656/045.026.0301
  252. Rowe, L.M., Portman, Z. & Cuthrell, D.L. (2022) Baseline wild bee surveys in Michigan Lakeplain Prairie and Prairie Fen natural communities. Michigan Natural Features Inventory Report No. 2022-27. Michigan Natural Features Inventory Lansing, Michigan. [unknown pagination]
  253. Rozen, J.G. (1973) Biology notes on the bee Andrena accepta Viereck (Hymentoptera, Andrenidae). Journal of the New York Entomological Society, 81, 54–61. [https://www.jstor.org/stable/25008852]
  254. Rozen Jr, J.G. & Favreau, M.S. (1968) Biological notes on Colletes compactus compactus and its cuckoo bee, Epeolus pusillus (Hymenoptera: Colletidae and Anthophoridae). Journal of the New York Entomological Society, 76 (2), 106–111. [https://www.jstor.org/stable/25006105]
  255. Ruggiero, M. & Ascher, J. (2019) ITIS Bees: World Bee Checklist (version Sep 2009). In: Roskov, Y., Ower, G., Orrell, T., Nicolson, D., Bailly, N., Kirk, P.M., Bourgoin, T., DeWalt, R.E., Decock, W., van Nieukerken, E. & Penev, L. (Eds.), Species 2000 & ITIS Catalogue of Life. 2019 Annual Checklist. Available from: http://www.catalogueoflife.org/annual-checklist/2019/details/database/id/67 (accessed 23 December 2024)
  256. Russo, L. (2016) Positive and negative impacts of non-native bee species around the world. Insects, 7 (4), 69. https://doi.org/10.3390/insects7040069
  257. Russo, L., Park, M., Gibbs, J. & Danforth, B. (2015) The challenge of accurately documenting bee species richness in agroecosystems: bee diversity in eastern apple orchards. Ecology and Evolution, 5, 3531–3540. https://doi.org/10.1002/ece3.1582
  258. Russo, L., Park, M.G., Blitzer, E.J. & Danforth, B.N. (2017) Flower handling behavior and abundance determine the relative contribution of pollinators to seed set in apple orchards. Agriculture, Ecosystems, and Environment, 246, 102–108. https://doi.org/10.1016/j.agee.2017.05.033
  259. Rust, R.W. (1974) The systematics and biology of the genus Osmia, subgenera Osmia, Chalcosmia, and Cephalosmia (Hymenoptera: Megachilidae). Wassman Journal of Biology, 32 (1), 1–93.
  260. Scarpulla, E. (2013) A year-long survey of the bees (Hymenoptera: Apoidea) of a human-made habitat created from dredged material: Hart-Miller Island, Chesapeake Bay, Baltimore County, Maryland. The Maryland Entomologist, 6 (1), 56–84.
  261. 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.
  262. Schuh, R.T., Hewson-Smith, S. & Ascher, J.S. (2010) Specimen databases: A case study in entomology using Web-based software. American Entomologist, 56 (4), 206–216. https://doi.org/10.1093/ae/56.4.206
  263. Scott, V.L., Ascher, J.S., Griswold, T. & Nufio, C.R. (2011) The bees of Colorado. Natural History Inventory of Colorado, 23, 1–100.
  264. Scott, Z., Ginsberg, H.S. & Alm, S.R. (2016) Native bee diversity and pollen foraging specificity in cultivated highbush blueberry (Ericaceae: Vaccinium corymbosum) in Rhode Island. Environmental Entomology, 45 (6), 1432–1438. https://doi.org/10.1093/ee/nvw094
  265. Sheffield, C.S., Kevan, P.G., Westby, S.M. & Smith, R.F. (2008) Diversity of cavity-nesting bees (Hymenoptera: Apoidea) within apple orchards and wild habitats in the Annapolis Valley, Nova Scotia, Canada. The Canadian Entomologist, 140 (2), 235–249. https://doi.org/10.4039/n07-058
  266. Sheffield, C.S., Hebert, P.D., Kevan, P.G. & Packer, L. (2009) DNA barcoding a regional bee (Hymenoptera: Apoidea) fauna and its potential for ecological studies. Molecular Ecology Resources, 9, 196–207. https://doi.org/10.1111/j.1755-0998.2009.02645.x
  267. 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.
  268. Sheffield, C.S., Danae Frier, S. & Dumesh, S. (2014) The bees (Hymenoptera: Apoidea, Apiformes) of the prairies ecozone, with comparisons to other grasslands of Canada. Arthropods of Canadian Grasslands, 4, 427–467.
  269. Sheffield, C.S. & Perron, J. (2014) Annotated catalogue of the bees described by Léon Provancher (Hymenoptera: Apoidea). Canadian Entomologist, 146 (2), 117–169. https://doi.org/10.4039/tce.2013.64
  270. Sheffield, C.S., Heron, J., Gibbs, J., Onuferko, T.M., Oram, R., Best, L., deSilva, N., Dumesh, S., Pindar, A. & Rowe, G. (2017) Contribution of DNA barcoding to the study of the bees (Hymenoptera: Apoidea) of Canada: progress to date. The Canadian Entomologist, 149 (6), 736–754. https://doi.org/10.4039/tce.2017.49
  271. 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 (21), 753–936. https://doi.org/10.5962/bhl.part.20081
  272. Sinha, R.N. & Michener, C.D. (1958) A revision of the genus Osmia, subgenus Centrosmia (Hymenoptera: Megachilidae). University of Kansas Science Bulletin, 39 (7), 275–303.
  273. Sivakoff, F.S., Prajzner, S.P. & Gardiner, M.M. (2018) Unique bee communities within vacant lots and urban farms result from variation in surrounding urbanization intensity. Sustainability, 10 (6), 1926. https://doi.org/10.3390/su10061926
  274. 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
  275. Snelling, R.R. (1968) Studies on the 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
  276. 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
  277. Snelling, R.R. (1983) Studies on North American Bees of the Genus Hylaeus. 6. An adventive Palearctic species in Southern California (Hymenoptera: Colletidae). Bulletin of the Southern California Academy of Sciences, 82, 12–16.
  278. Snelling, R.R. (1986) Contributions toward a revision of the New World nomadine bees: A partitioning of the genus Nomada (Hymenoptera: Anthophoridae). Contributions in Science, Natural History Museum of Los Angeles County, 376, 1–32. https://doi.org/10.5962/p.208119
  279. Snelling, R.R. & Stage, G.I. (1995) A revision of the Nearctic Melittidae: The subfamily Melittinae (Hymenoptera: Apoidea). Contributions in Science - Natural History Museum of Los Angeles County, 451, 19–31. https://doi.org/10.5962/p.208086
  280. Soltani, G.G., Bénon, D., Alvarez, N & Praz, C.J. (2017) When different contact zones tell different stories: putative ring species in the Megachile concinna species complex (Hymenoptera: Megachilidae). Biological Journal of the Linnean Society, 131, 815–832. https://doi.org/10.1093/biolinnean/blx023
  281. Song, H. & Johnson, N. (2018) Stuart M. Fullerton Collection of Arthropods (UCFC), University of Central Florida. Version 85.36. Museum of Biological Diversity, The Ohio State University. Occurrence dataset. Available from: https://www.gbif.org/ (accessed 16 January 2024) https://doi.org/10.15468/kyulwg
  282. Soroye, P., Newbold, T. & Kerr, J. (2020) Climate change contributes to widespread declines among bumble bees across continents. Science, 367 (6478), 685–688. https://doi.org/10.1126/science.aax8591
  283. Sportman, S.P. & Leslie, D.E. (2020) 12,500-Year-Old Paleoindian site discovered. Available from: https://www.ctexplored.org/12500-year-old-paleoindian-site-discovered/ (accessed 16 September 2024)
  284. Stage, G.I. (2009) Survey of the bees (Hymenoptera: Apoidea) of Penikese and Cuttyhunk Islands. Summary of fieldwork, results, and preliminary conclusions. Final Report to Massachusetts Natural Heritage and Endangered Species Program, Westborough, Massachusetts. [unknown pagination]
  285. Stephen, W.P. (1954) A revision of the bee genus Colletes in America north of Mexico (Hymenoptera, Colletidae). University of Kansas Science Bulletin, 36, 149–527.
  286. Stone, J.R., Schafer, J.P., London, E.H., DiGiacomo-Cohen, M.L., Lewis, R.S. & Thompson, W.B. (2005) Quaternary geologic map of Connecticut and Long Island Sound Basin. Available from: https://pubs.usgs.gov/sim/2005/2784/ (accessed 16 September 2024) https://doi.org/10.3133/sim2784
  287. Stoner, K.A. & Eitzer, B.D. (2012) Movement of soil-applied imidacloprid and thiamethoxam into nectar and pollen of squash (Cucurbita pepo). PLoS ONE, 7, e39114. https://doi.org/10.1371/journal.pone.0039114
  288. Stoner, K.A. (2013) Bees on alternative flowering plants on vegetable farms in Connecticut. Available from: https://portal.ct.gov/-/media/CAES/DOCUMENTS/Publications/Fact_Sheets/Entomology/BeesonAlternativeFloweringPlantson
  289. VegetableFarmsinCTpdf.pdf (accessed 5 December 2022)
  290. Stoner, K.A. & Eitzer, B.D. (2013) Using a Hazard Quotient to evaluate pesticide residues detected in pollen trapped from honey bees (Apis mellifera) in Connecticut. PLoS ONE, 8 (10), e77550. https://doi.org/10.1371/journal.pone.0077550
  291. Stoner, K.A., Cowles, R.S., Nurse, A. & Eitzer, B.D. (2019) Tracking pesticide residues to a plant genus using palynology in pollen trapped from honey bees (Hymenoptera: Apidae) at ornamental plant nurseries. Environmental Entomology, 48 (2), 351–362. https://doi.org/10.1093/ee/nvz007
  292. Stoner, K.A. (2020) Pollination is sufficient, even with low bee diversity, in pumpkin and winter squash fields. Agronomy, 10 (8), 1141. https://doi.org/10.3390/agronomy10081141
  293. Straka, J., Benda, D., Policarová, J., Astapenková, A., Wood, T.J. & Bossert, S. (2024) A phylogenomic monograph of West-Palearctic Nomada (Hymenoptera: Apidae). Insect Systematics and Diversity, 8 (1), 1–35. https://doi.org/10.1093/isd/ixad024
  294. Stubbs, C.S., Drummond, F.A. & Allard, S.L. (1997) Bee conservation and increasing Osmia spp. in Maine lowbush blueberry fields. Northeastern Naturalist, 4, 133–144. [https://www.jstor.org/stable/3858708] https://doi.org/10.2307/3858708
  295. Szabo, N.D., Colla, S.R., Wagner, D.L., Gall, L.F. & Kerr, J.T. (2012) Do pathogen spillover, pesticide use, or habitat loss explain recent North American bumblebee declines? Conservation Letters, 5 (3), 232–239. https://doi.org/10.1111/j.1755-263x.2012.00234.x
  296. Taylor, C.E.S. & Taylor, R.J. (1983) New species, new combinations, and notes on the goldenrods (Euthamia and Solidago—Asteraceae. Contributions to Botany, 10 (2), 176–183. [https://www.jstor.org/stable/23909548]
  297. Telfer, M.G., Preston, C.D. & Rothery, P. (2002) A general method for measuring relative change in range size from biological atlas data. Biological Conservation, 107 (1), 99–109. https://doi.org/10.1016/S0006-3207(02)00050-2
  298. Terwilliger Consulting Inc. (2015) Conservation actions for Connecticut’s key habitats and species of greatest conservation need. In: Terwilliger Consulting Inc., Connecticut Wildlife Action Plan, 2015, pp. 4-38–4-108.
  299. 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, Apoidea. Part I. University of California Publications in Entomology, 9 (6), 345-432.
  300. 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, Apoidea. Part II. University of California Publications in Entomology, 11 (5), 247–350.
  301. 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, Apoidea. Part III. University of California Publications in Entomology, 14 (5), 303–410.
  302. 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, Apoidea). Part IV. University of California Publications in Entomology, 17, 1–156.
  303. Timberlake, P.H. (1969) A contribution to the systematics of North American species of Synhalonia (Hymeoptera: Apoidea). University of California Publications in Entomology, 57, 1–76.
  304. Tommins, J. (2017) The Missing Fens: Rare and Growing Rarer. Connecticut Woodlands Magazine, The Magazine of the Connecticut Park and Forest Association, 82 (1), 6–8.
  305. Tuell, J.K., Ascher, J.S. & Isaacs, R. (2009) Wild bees (Hymenoptera: Apoidea: Anthophila) of the Michigan highbush blueberry agroecosystem. Annals of the Entomological Society of America, 102 (2), 275–287. https://doi.org/10.1603/008.102.0209
  306. Tumminello, G., Volk, T.A., McArt, S.H. & Fierke, M.K. (2018) Maximizing pollinator diversity in willow biomass plantings: A comparison between willow sexes and among pedigrees. Biomass and Bioenergy, 117, 124–130. https://doi.org/10.1016/j.biombioe.2018.07.013
  307. Turner, N. (1974) Entomology in Connecticut: 1901 – 1950. In: Beard R.L. (Ed.), 25th Anniversary Memoirs. Connecticut Entomological Society, New Haven, Connecticut, 322 pp.
  308. UConn Biodiversity Research Collection (2023) Occurrence dataset (ID: 3424432d-6315-479a-be70-2c46cfd82ed0). Accessed via the Ecdysis Portal, ecdysis.org. Available from: https://ecdysis.org/content/dwca/UCONN-INV_DwC-A.zip (accessed 5 October 2023)
  309. United States Census Bureau (2021) Connecticut: 2020 Census. Available from: https://www.census.gov/programs-surveys/decennial-census/decade/2020/2020-census-main.html (accessed 13 September 2024)
  310. United States Department of Agriculture (2019) Forests of Connecticut. 2018. Resource Update FS–209. United States Department of Agriculture Forest Service, Northern Research Station, Newtown Square, Pennsylvania, 2 pp. https://doi.org/10.2737/FS-RU-209
  311. United States Department of Transportation (2015) Fixing America’s Surface Transportation Act. Available from: https://www.fhwa.dot.gov/fastact/legislation.cfm (accessed 16 September 2024)
  312. United States Fish and Wildlife Service (2017) Endangered and threatened species: Rusty Patched Bumble Bee. Available from: https://www.regulations.gov/document/FWS-R3-ES-2015-0112-0243 (accessed 16 September 2024)
  313. United States Geological Survey (2015) A national look at Species of Greatest Conservation Need as reported in State Wildlife Action Plans. Available from: https://www1.usgs.gov/csas/swap/state_list.html#state=Connecticut (accessed 16 September 2024)
  314. United States Geological Survey, Eastern Ecological Science Center (2024) Introduced and alien bee species of North America. Available from: https://www.usgs.gov/centers/eesc/science/introduced-and-alien-bee-species-north-america-north-mexico (accessed 9 September 2024)
  315. University of Connecticut (undated) Connecticut Seagrant, Connecticut beaches and dunes: A hazard guide for coastal property owners. Available from: https://beachduneguide.uconn.edu/learn-even-more/ (accessed 16 September 2024)
  316. University of New Hampshire Collection of Insects and other Arthropods (2023) University of New Hampshire Collection of Insects and Arthropods (UNHC-UNHC). Occurrence dataset. Available from: https://www.gbif.org/ (accessed 16 January 2024) https://doi.org/10.15468/n36jmy
  317. 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
  318. Urban-Mead, K.R. (2017) Predictability of bee community composition after floral removals differs by floral trait group. Biology Letters, 13 (11), 20170515. https://doi.org/10.1098/rsbl.2017.0515
  319. Veit, M.F., Ascher, J.S., Milam, J., Morrison, F.R. & Goldstein, P.Z. (2022 [2021]) A checklist of the bees of Massachusetts (Hymenoptera: Apoidea: Anthophila). Journal of the Kansas Entomological Society, 94 (2), 81–157. https://doi.org/10.2317/0022-8567-94.2.81
  320. Viereck, H.L. (1907) Andrenae of the Canadian, Alleghanian and Carolinian plant zones occurring or likely to occur in Connecticut. Entomological News, 18, 280–287.
  321. Viereck, H.L., MacGillivray, A.D., Brues, C.T., Wheeler, W.M. & Rohwer, S.A. (1916) Guide to the Insects of Connecticut, Part III: The Hymenoptera, Or Wasp-like Insects of Connecticut. Vol. 5. Bulletin No. 22. Connecticut State Geological and Natural History Survey, Hartford, Connecticut, 824 pp., 10 pls.
  322. Wagner, D.L., Nelson, M.W. & Schweitzer, D.F. (2003) Shrubland Lepidoptera of southern New England and southeastern New York: ecology, conservation, and management. Forest Ecology and Management, 185 (1–2), 95–112. https://doi.org/10.1016/S0378-1127(03)00249-4
  323. Wagner, D.L. & Ascher, J.S. (2008) Rediscovery of Epeoloides pilosula (Cresson) (Hymenoptera: Apidae) in New England. Journal of the Kansas Entomological Society, 8, 81–83. https://doi.org/10.2317/JKES-703.19.1
  324. Wagner, D.L. & Ascher, J.S. (2014) In remembrance of Gerald Irving Stage (June 26, 1935-January 23, 2014). Journal of the Kansas Entomological Society, 87 (3), 318–323. https://doi.org/10.2317/0022-8567-87.3.318
  325. Wagner, D.L., Ascher, J.S. & Bricker, N.K. (2014a) A transmission right-of-way as habitat for wild bees (Hymenoptera: Apoidea: Anthophila) in Connecticut. Annals of the Entomological Society of America, 107 (6), 1110–1120. https://doi.org/10.1603/AN14001
  326. Wagner, D.L., Metzler, K.J., Leicht-Young, S.A. & Motzkin, G. (2014b) Vegetation composition along a New England transmission line corridor and its implications for other trophic levels. Forest Ecology and Management, 327, 231–239. https://doi.org/10.1016/j.foreco.2014.04.026
  327. Wagner, D.L., Metzler, K.J. & Frye, H. (2019) Importance of transmission line corridors for conservation of native bees and other wildlife. Biological Conservation, 235, 147–156. https://doi.org/10.1016/j.biocon.2019.03.042
  328. Warncke, K. (1980) Die Bienengattung Anthidium Fabricius, 1804 in der Westpaläarktis und im turkestanischen Becken. Entomofauna, 1 (10), 119–209.
  329. Watson, J.B., Bartel, K.G. & Gibbs, J. (2023) Willow pollen collection by a blueberry specialist bee (Hymenoptera: Andrenidae). The Great Lakes Entomologist, 56 (2), 12. https://doi.org/10.22543/0090-0222.2466
  330. Westrich, P. (2019) Die Wildbienen Deutschlands. Stuttgart: Verlag Eugen Ulmer.
  331. White, E.L., Hunt, P.D., Schlesinger, M.D., Corser, J.D. & deMaynadier, P.G. (2015) Prioritizing Odonata for conservation action in the northeastern USA. Freshwater Science, 34 (3), 1079–1093. https://doi.org/10.1086/682287
  332. White, E.L., Schlesinger, M.D. & Howard, T.G. (2022) The Empire State Native Pollinator Survey (2017-2021). New York Natural Heritage Program, Albany, New York, vii + 78 + 451 (Appendix) pp.]
  333. Williams, P.H., Cameron, S.A., Hines, H.M., Cederberg, B. & Rasmont, P. (2008) A simplified subgeneric classification of the bumble bees (genus Bombus). Apidologie, 39, 46–74. https://doi.org/10.1051/apido:2007052
  334. Williams, P., Colla, S. & Xie, Z. (2009) Bumblebee vulnerability: common correlates of winners and losers across three continents. Conservation Biology, 23 (4), 931–940. https://doi.org/10.1111/j.1523-1739.2009.01176.x
  335. Williams, P.H., Thorp, R.W., Richardson, L.L. & Colla, S.R. (2014) Bumble bees of North America: An identification guide. Princeton University Press, Princeton, New Jersey, 208 pp.
  336. Winfree, R., Williams, N., Gaines, H., Ascher, J.S. & Kremen, C. (2008) Wild bee pollinators provide majority of crop visitation across land-use gradients in New Jersey and Pennsylvania, USA. Journal of Applied Ecology, 45, 793–802.
  337. https://doi.org/10.1111/j.1365-2664.2007.01418.x
  338. Woodside, C. (2016) The disappeared sand plains: 95 percent of them are gone. Connecticut Woodlands, 81 (1), 6–9. [https://chriswoodside.com/the-disappeared-sandplains-95-percent-of-them-are-gone/]
  339. Wood, T.J. & Roberts, S.P. (2018) Constrained patterns of pollen use in Nearctic Andrena (Hymenoptera: Andrenidae) compared with their Palaearctic counterparts. Biological Journal of the Linnean Society, 124 (4), 732–746. https://doi.org/10.1093/biolinnean/bly080
  340. Yates, A.W. (1918) Beekeeping for Connecticut. Bulletin 205. Connecticut Agricultural Experiment Station. Available from: https://portal.ct.gov/-/media/CAES/DOCUMENTS/Publications/Bulletins/b205pdf.pdf (accessed 16 September 2024)
  341. Zarrillo, T.A., Ascher, J.A., Gibbs, J. & Stoner, K.A. (2016) New and noteworthy records of bees (Hymenoptera: Apoidea: Anthophila) for Connecticut. Journal of the Kansas Entomological Society, 89 (2), 138–157. https://doi.org/10.2317/0022-8567-89.2.138
  342. Zarrillo, T.A. & Stoner, K.A. (2019) The bee fauna of an Atlantic coastal plain tidal marsh community in southern New England, USA. Journal of Melittology, 86, 1–34. https://doi.org/10.17161/jom.v0i86.7334