SHARP-EATMAN
NATURE
PHOTOGRAPHY
REFERENCES
ID GUIDE TO WILD BEES OF NEW YORK
& Rockefeller State Park Preserve
NOTE: Many thanks to Dr. John S. Ascher for his assistance in identifying the bees appearing on this site.
RECOMMENDED BOOKS:
Buchanan, Stephen L. and Gary Paul Nabhan, The Forgotten Pollinators. Washington, D.C.: Island Press, 1996.
Evans, Arthur V., National Wildlife Federation Field Guide to Insects and Spiders of North America. New York: Sterling Publishing, 2008.
Goulson, Dave. Bumblebees: Behavior, Ecology, and Conservation, 2nd ed. Oxford: Oxford University Press, 2010.
Holm, Heather, Pollinators of Native Plants: Attract, Observe and Identify Pollinators and Beneficial Insects with Native Plants. Minnetonka, MN: Pollination Press, 2014.
Marshall, Stephen A., Insects: Their Natural History and Diversity. Buffalo: Firefly Books 2006.
Michener, Charles D., The Bees of the World, 2nd ed. Baltimore: The Johns Hopkins University Press, 2007.
Michener, Charles D., The Social Behavior of the Bees. Cambridge: Harvard University Press, 1974.
Milne, Lorus and Margery Milne, National Audubon Society Field Guide to Insects and Spiders. New York: Knopf, 2006.
Mitchell, Theodore B. 1962. Bees of the Eastern United States. Volume 2. North Carolina Agricultural Experimental Station Technical Bulletin No. 152.
Mitchell, Theodore B. 1960. Bees of the Eastern United States. Volume 1. North Carolina Agricultural Experiment Station Technical Bulletin No. 141.
Williams, Paul, Robbin Thorp, Leif Richardson & Sheila Colla, Bumble Bees of North America. Princeton: Princeton University Press, 2014.
Wilson, Joseph S. and Olivia Messinger Carril, The Bees in Your Backyard: A Guide to North America's Bees. Princeton: Princeton University Press, 2016.
The Xerxes Society, Attracting Native Pollinators: Protecting North America's Bees and Butterflies, Deborah Burns, ed. North Adams, MA: Storey Publishing, 2010.
RECOMMENDED BEE IDENTIFICATION DATABASES:
Ascher, J. S. and J. Pickering, Discover Life Bee Species Guide and World Checklist (Apoidea - Bees, Apoid Wasps). Discover Life. 2017. Web. Nov. 5, 2018. <https://www.discoverlife.org/mp/20q?search=Apoidea#Identification>
Bug Guide. Iowa State University Department of Entomology. <http://bugguide.net> This guide is an indispensable resource for bee identification in the United States. Many thanks to entomologist John S. Ascher for his tremendous help in confirming identifications of bees appearing in this website.
Packer, Laurence and Julio A. Genaro and Cory S. Sheffield, "The Bee Genera of Eastern Canada." Canadian Journal of Arthropod Identification. No. 3, September 25, 2007. Web. July 14, 2015. <http://cjai.biologicalsurvey.ca/pgs_03/pgs_03_main.html>
Pascarella, John B., "The Bees of Florida." Department of Entomology & Nematology Department, University of Florida. Web. May 24, 2015. <hhttp://entnemdept.ufl.edu/HallG/Melitto/floridabees/Bees_of_Florida_Part1.pdf>
REFERENCES CONSULTED:
Abrams, Judith & George C. Eickwort 1981. Nest switching and guarding by the communal sweat bee Agapostemon virescens (Hymenoptera: Halictidae) Insectes Sociaux. 28:105-116. [Agapostemon]
Abrams, Judith & Gordon C. Eickwort, G.C. 1980. Biology of the communal sweat bee Agapostemon virescens (Hymenoptera: Halictidae) in New York State. Search Agriculture 1-20. [Agapostemon]
Ascher, John S., Robert G. Goelet Sarah Kornbluth. 2014. “Bees (Hymenoptera: Apoidea: Anthophila) of Gardiners Island, Suffolk County, New York,” Northeastern Naturalist 21(1): 47-71. [Sphecodes johnsonii]
Baker, J. R. 1975. Taxonomy of five Neartic subgenera of Coelioxys (Hymenoptera: Megachilidae),” The University of Kansas Science Bulletin 50(12): 649-730.
Batra, S.W.T. 1980. Ecology, behavior, pheromones, parasites and management of the sympatric vernal bees Colletes inaequalis, C. thoracius and C. validus. Journal of the Kansas Entomological Society 53(3): 509-538.
"Bee Gallery." The Great Sunflower Project. August 10, 2014. <http://www.greatsunflower.org/node/1126970>
"The Bee Keepers," The Boston Globe, June 23, 2013. Web. July 18, 2014. Retrieved from <http://www.bostonglobe.com/magazine/2013/06/22/the-harvard-scientist-linking-pesticides-honeybee-colony-collapse-disorder/nXvIA5I6IcxFRxEOc8tpFI/story.html>
"Beekeeping in Tennessee." University of Tennessee Institute of Agriculture, UT Extension Publications. July 24, 2014. <https://utextension.tennessee.edu/publications/Documents/PB1745.pdf>
"Bees: Genus Halictus (Sweat Bees)." The Great Sunflower Project. August 26, 2015. <https://www.greatsunflower.org/halictus>
"Bees of New York." The New York State Biodiversity Research Institute. August 13, 2014. Web. <http://www.nybiodiversity.org/summaries/bees/species.html>
"Best Management Practices for Pollination in Ontario Crops." NSERC-CANPOLIN Canadian Pollination Initiative. Web. June 20, 2015. <http://www.pollinator.ca/bestpractices/>
Biddinger, D., H. J. Ngugi, M. Frazier, E. Rajo, T. Leslie and L.R. Donovall, "Development of the Mason Bee, Osmia cornifrons, as an Alternative Pollinator to Honey Bees and as a Targeted Delivery System for Biocontrol Agents in the Management of Fire Blight," Pennsylvania Fruit News, Jan 1, 2010, Vol. 90(2), pp. 35-44.
“Blueberries.” United States Department of Agriculture. April 2, 2016. Web. <http://www.ars.usda.gov/Research/docs.htm?docid=18389>
“Blueberry Pollinators.” North Carolina State University – A & T State University Cooperative Extension. April 2, 2016. Web. < https://entomology.ces.ncsu.edu/small-fruit-insect-biology-management/blueberry-pollinators/>
"Bombus bimaculatus." The IUCN Redlist of Threatened Species. Web. June 23, 2015. <http://www.iucnredlist.org/details/44937719/0> [Bombus]
"Bombus fervidus: The Yellow Bumble Bee.” Encyclopedia of Life. Web. June 23, 2015. <http://eol.org/pages/1065363/details>
[Bombus]
“Bombus Fervidus.” Entomology Collection, E. H. Strickland Entomological Museum, Dept. of Biological Sciences, University of Alberta. <http://entomology.museums.ualberta.ca/searching_species_details.php?s=38254> [Bombus]
"Blue Orchard Mason Bee." British Columbia Ministry of Agriculture. Web. June 16, 2015. <http://www.agf.gov.bc.ca/apiculture/factsheets/506_osmia.htm> [Osmia]
Bohart, George E. 2016. Notes on Triepeolus remigatus (Fabricius), a 'Cuckoo Bee' Parasite of the Squash Bee, Xenoglossa strenua (Cresson) (Hymenoptera: Apoidea)." Pan-Pacific Entomology 42(4): 255-262.
Bouseman, J.K. 1987. Collection of Melissodes (Apomelissodes) apicata in Illinois (Hymenoptera: Apoidea). Journal of the Kansas Entomological Society 60(2): 335–336. [Melissodes]
“Bumble Bee Biographies" ("Bombus bimaculatus'" and "Bombus fervidus”). Beespotter. June 23, 2015. <http://beespotter.org/topics/> [Bombus]
"Bumble Bee Eyes" and "Bumble Bee Wings." Bumblebee.org. Web. July 21, 2014.
<http://www.bumblebee.org/> [Bombus]
"Bumble Bees Decline, Other Species Persist in Northeastern USA." American Museum of Natural History. May 27, 2015. <http://www.amnh.org/explore/news-blogs/research-posts/study-bumble-bees-decline-other-species-persist-in-northeastern-usa>
[Bombus]
“Buzz Pollination.” Leonard Lab. Web. Jan 4, 2016. < http://www.anneleonard.com/buzz-pollination/> [A great recording and video of a bumble bee practicing buzz pollination can be viewed here.] [Bombus]
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. [Megachile]
Cane, J. H., Griswold T., & Parker F. D. 2007. Substrates and materials used for nesting by North American Osmia bees (Hymenoptera: Apiformes: Megachilidae). Annals of the Entomological Society of America 100(3): .350-358. [Osmia]
Cane, J.H. & J.A. Payne. 1988. Foraging ecology of the bee Habropoda laboriosa (Hymenoptera: Anthophoridae), an oligolege of blueberries (Ericaceae: Vaccinium) in the southeastern United States. Annals of the Entomologial Society of America 81: 419-427. {Habropoda]
Cane, J. H., Sampson, B. J., & Miller, S. A. (2011). Pollination value of male bees: The specialist bee Peponapis pruinosa (Apidae) at summer squash (Cucurbita pepo). Environmental Entomology 40(3), 614–620. [Squash bee; Xenoglossa]
Canto-Aguilar, Maria Azucena & Victor Parra-Tabla. 2000. Importance of Conserving Alternative Pollinators: Assessing the Pollination Efficiency of the Squash Bee, Peponapis limitaris in Cucurbita moschata. Journal of Insect Conservation 4(3): 201-208.
“Carpenter Bees.” United States Department of Agriculture Forestry Service. July 21,2014. <http://www.fs.fed.us/wildflowers/pollinators/pollinator-of-the-month/carpenter_bees.shtml>
Cockerell, T. D. A. 1929. Some bees of the group Trachandrena, Robertson (Hymenoptera: Andrenidae), Annals of the Entomological Society of America 22(4): 754-758. [Andrena]
Cockerell, T.D.A. 1927. Bees of the genera Agapostemon and Augochlora in the collection of the California Academy of Sciences. Pan-Pacific Entomologist 3 (4): 153–162. [Agapostemon]
Coelho, Beatriz W. T. 2004. A review of the bee genus Augochlorella (Hymenoptera: Halictidae: Augochlorini). Systematic Entomology 29: 282-323. [Augochlorella]
“Confusing Bumble Bee”. Bumble Bee Watch. 2014. Web. July 20, 2014. <http://www.bumblebeewatch.org/speciesprofiles/view/perplexus> [Bombus]
Crandall, H., and H. D. Tate. “The Bee, Calliopsis andreniformis, as a factor in alfalfa seed setting,” Journal of the American Society of Agronomy, Vol .39 (161-63) (1947), pp. 161-63. [Calliopsis]
“The Confusing Long-horned Bee.” The Encyclopedia of Life. Web. July 18, 2014.
<http://www.discoverlife.org/20/q?search=Melissodes+confusa> [Melissodes]
Crawford, James C. 1901. North American bees of the genus Agapostemon Guerin. Proceedings of the Nebraska Academy of Sciences 7: 156–165. [Agapostemon]
“Crop Pollination from Native Bees at Risk from Agricultural Intensification.” National Science Foundation. July 23, 2014. <http://www.pnas.org/content/99/26/16812.full>
"Cuckoo Bees: Nomadinae." PBase.Com. (Tom Murray gallery). June 15,20015. <http://www.pbase.com/tmurray74/cuckoo_bees_nomadinae> [Nomada]
Danforth, B.N. and K.N. Magnacca. 2002. Bees of New York State. New York State Biodiversity Clearinghouse, New York State Biodiversity Project and New York State Biodiversity Research Institute. http://www.nybiodiversity.org/
Davis, David R., & Wallace E. Laberge, "The nest biology of the bee Andrena (Ptilandrena) erigeniae Robertson (Hymenoptera: Andrenidae)," Illinois Natural History Survey (June, 1975). Archive.org. Web. Jan. 4, 2016. <https://archive.org/stream/nestbiologyofbee95davi/nestbiologyofbee95davi_djvu.txt>
Deyrup, Mark, Jayanthi Edirisinghe & Beth Norden. 2002. The diversity and floral hosts of bees at the Archbold Biological Station, Florida (Hymenoptera: Apoidea), Insecta Mundi 16(1-3): 87-120. [Coelioxys]
Dreisbach, Robert R. 1945. The green halictine bees of the genera Agapostemon, Augochlora, Augochlorella, and Augochloropsis (Hymenoptera: Apoidea) in Michigan, with keys and distribution. Papers of the Michigan Academy of Science, Arts and Letters 30: 221–227. [Agapostemon]
Droege, Sam, “Andrenidae, Colletidae, Melittidae: A Guide to Their Identification in Eastern North America.” Dec. 9, 2008. Web. June 26, 2015. <http://www.slideshare.net/sdroege/eastern-north-american-andrenidae-bees-taxonomy-distribution-identification-presentation>
Droege, Sam, "Guide to the Bee Genera within Apidae of Eastern North America." Parts I and II. <http://www.slideshare.net/sdroege/guide-to-the-bee-genera-within-apidae-of-eastern-north-america-part-1-presentation?next_slideshow=1> and https://www.slideshare.net/sdroege/guide-to-the-bee-genera-within-apidae-of-eastern-north-america-part-2-presentation
Droege, Sam, “Identification Guide to the Megachilidae Genera of Eastern North America”. Jan. 8, 2009. Web. June 26, 2015. <http://www.slideshare.net/sdroege/identification-guide-to-the-megachilidae-genera-of-eastern-north-america-presentation?related=1>
Droege, Sam, “Osmia Georgica”. United States Geological Survey Bee Inventory and Monitoring Lab. Web. June 16, 2016. <https://www.flickr.com/photos/usgsbiml/26392252245/>
Dyer, J.G., & A. F. Shinn. 1978. Pollen collected by Calliopsis andreniformis Smith in North America (Hymenoptera: Andrenidae), Journal of the Kansas Entomological Society 51: 787-795.
Eickwort, George C. 1981. Aspects of the nesting biology of five nearctic species of Agapostemon (Hymenoptera: Halictidae). Journal of the Kansas Entomological Society 54: 337-351. [Agapostemon]
Eickwort, George 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. [Perdita]
Eickwort, George C. 1969. A comparative morphological study and generic revision of the Augochlorine bees (Hymenoptera: Halictidae). The University of Kansas Science Bulletin 48: 326–524. [Augochlorini]
Eickwort, George C., Robert W. Matthews and James Carpenter. 1981. Observations on the nesting behavior of Megachile rubi and M. texana with a discussion of the significance of soil nesting in the evolution of Megachilid bees (Hymenoptera: Megachilidae), Journal of the Kansas Entomological Society 54(3): 557-570.
Engel, Michael S. 2000. Classification of the bee tribe Augochlorini (Hymenoptera: Halictidae). Bulletin of the American Museum of Natural History 250: 1–89. [Augochlorini]
Freitas, Felipe V., MG Branstetter, Terry L Griswold, & Eduardo A. B. Almeida. 2021. “Partitioned gene-tree analyses and gene-based topology testing help resolve incongruence in a phylogenomic study of host-specialist bees (Apidae: Eucerinae).” Molecular Biology and Evolution 38(3):1090–1100. [Eucerini]
Freitas, Felipe V., Michael G. Branstetter, Vinícius H. Franceschini-Santos, Achik Dorchin, Karen W. Wright, Margarita M. López-Uribe, Terry Griswold, Fernando A. Silveira, & Eduardo A.B. Almeida. 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), 1-21. [Eucerini]
Gardner, J., & Gibbs, J. 2020. The ‘red-tailed’ Lasioglossum (Dialictus) (Hymenoptera: Halictidae) of the western Nearctic. European Journal of Taxonomy 725: 1–242. [Lasioglossum]
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. [Lasioglossum]
Gardner, K.E., and J. S. Ascher. 2006. Notes on the native bee pollinators in New York apple orchards. Journal of the New York Entomological Society 114(1-2): 86-91 (2006).
Garvey, Kathy K., "Wool Carder Bees Not the Terrorists Some Think." Farm Press Daily. Jan. 31, 2012. Web. July 23, 2014. <http://westernfarmpress.com/management/wool-carder-bees-not-terrorists-some-think>
"Giant Resin Bee." Encyclopedia of Life. Aug. 6, 2014. Web. <http://eol.org/pages/2752002/details> [Megachile]
Gibbs, J. 2010. Revision of the metallic Lasioglossum (Dialictus) of Canada (Hymenoptera, Halictidae, Halictini). Zootaxa 2591: 1–382. [Lasioglossum]
Gibbs, J. 2011. Revision of the metallic Lasioglossum (Dialictus) of eastern North America (Hymenoptera: Halictidae: Halictini). Zootaxa 3073: 1–216. [Lasioglossum]
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, 1–116. [Lasioglossum]
Giles, Valerie & John S. Ascher. 2006. "A Survey of the Bees of the Black Rock Forest Preserve, New York (Hymenoptera: Apoidea), Journal of Hymenoptera Research 15(2): 208-231.
Giulian, J., B.N. Danforth, & J.G. Kueneman. 2024. A large aggregation of Melissodes bimaculatus (Hymenoptera: Apidae) offers perspectives on gregarious nesting and pollination services. Northeastern Naturalist 31(3): 402–417. [Melissodes]
Goldman, Jason G., "Bees Living in Cities Are Building Their Homes with Plastic." Scientific American. June 1, 2014. Web. July 21, 2015. <http://www.scientificamerican.com/article/bees-living-in-cities-are-building-their-homes-with-plastic/>
Gonçalves, Rodrigo. 2016. A molecular and morphological phylogeny of the extant Augochlorini (Hymenoptera, Apoidea) with comments on implications for biogeography. Systematic Entomology 41(4): 700-712. [Augochlorini]
Goodell, Karen. 2000. Food availability affects Osmia pumila (Hymenoptera: Megachilidae) foraging, reproduction, and brood parasitism. Oecologia 134(4): 518-527.
Graenicher, S. 1904. The relations of the Andrenine bees to the entomophilous Flora of Milwaukee County,” Entomological News. 1904, p. 64. Retrieved at website of University of Wisconsin-Madison Library. April 23, 2016. <http://images.library.wisc.edu/WI/EFacs/transactions/WT1904/reference/wi.wt1904.sgraenicher.pdf> [Andrena]
Grahm, Jason R., Jamie Ellis, Glenn Hall and Catherine Zettel Nalen, “Anthophora abrupta Say.” University of Florida, Department of Entomology and Nemotology. June 23, 2016. Web. <http://entnemdept.ufl.edu/creatures/misc/bees/anthophora_abrupta.htm [Anthophora]
Greenleaf, Sarah S. & Claire Kremen, 2014. Wild bees enhance honey bees' pollination of hybrid sunflower," Proceedings of the National Academy of Sciences 103(37). [Apis]
Hefetz, Abraham, George C. Eickwort, Murray S. Blum, James Cane & George E. Bohart. 1982. A comparative study of the exocrine products of cleptoparasitic bees (Holcopasites) and their hosts (Calliopsis) (Hymenoptera: Anthophoridae, Andrenidae), Journal of Chemical Ecology 8(11): 1389-1397. [Holcopasites] [Calliopsis]
Hogendoorn, Katja & Remko Leys. 1997. Life-cycle of Halictus rubicundus Christ (Hymenoptera Halictidae) in the Netherlands: two populations." Journal of the Kansas Entomological Society 70(4): 347-352. [Halictus]
Hogland, F. E. 2025. Melissodes apicatus. The Melissodes Project. Latest version available at https://themelissodesproject.wildref.org/melissodes-apicatus.html. [Melissodes]
“Holandrena,” The Bees of Florida. University of Florida - Gainesville, Department of Entomology and Nematology. May 15, 2017. [Excellent key for Cresson's Andrena] <http://entnemdept.ufl.edu/HallG/Melitto/floridabees/holandrena.htm> [Andrena]
Holland, Jennifer S., "Gold Dusters." National Geographic. March, 2011. Web. August 21, 2014.
Holland, Jennifer S. "The Plight of the Honey Bee." National Geographic. May 10, 2013. Web. August 21, 2014. <http://news.nationalgeographic.com/news/2013/13/130510-honeybee-bee-science-european-union-pesticides-colony-collapse-epa-science/> [Apis]
"Honey Bee Stealing Pollen from Native Bee." Online video clip. "Honey Bees (Apis mellifera"). Wildscreen Arkive. Web. Accessed Oct. 28, 2016. <http://www.arkive.org/honey-bee/apis-mellifera/video-11d.html> [showing a British honey bee robbing an unidentified wild bee pollinating a impatiens-like flower] [Apis]
Humphrey, Stephen, ”Leafcutter bee (Megachile relativa) builds a brood cell” [video], part of series titled “Odes to Solitary Bees.” Resonating Bodies. August 14, 2010. Web. July 5, 2017. <https://resonatingbodies.wordpress.com/art/odes/> [Megachile]
Hurd, P.D., Jr., & E.G. Linsley. 1959. Observations on the nest-site behavior of Melissodes composita Tucker and its parasites, with notes on the communal use of nest entrances (Hymenoptera: Apoidea). Entomological News 70(6): 141–146. [Melissodes]
Hurd, P. D.,Jr., E.G. Linsley, & A.D. Michelbacher. 1974. Ecology of the squash and gourd bee, Peponapis pruinosa, on cultivated cucurbits in California (hymenoptera: Apoidea). Smithsonian Contributions to Zoology, 168: 1–17. [Squash bee; Xenoglossa]
Ingber, Sasha, "As Honey Bees Die Off, First Inventory of Wild Bees Is Underway." National Geographic, July 11, 2014. Web. August 21, 2014. <http://news.nationalgeographic.com/news/2014/07/140711-wild-bees-north-america-honeybees-science/>
Isaacs, Rufus and Julianna Tuell, "Conserving Bees on Native Farmland." Michigan State University Extension Bulletin E-2985. May, 2007. Web. July 17, 2014. <http://www.gratiotlakeconservancy.org/NewIn2010/BeesForWeb/E2985ConservingNativeBees.pdf>
Janjic, Jessica & Laurence Packer. 2003. Phylogeny of the bee genus Agapostemon (Hymenoptera: Halictidae). Systematic Entomology 28 (1): 101–124. [Agapostemon]
Johnson, M. D. 1986. “Stelis lateralis reared from a nest of Osmia pumila” (Hymenoptera: Megachilidae). Journal of the Kansas Entomological Society 59: 743-745. [Osmia; Stelis]]
“Key to Green Halictid Diversity.” University of Virginia. Web. June 21, 2015. <http://people.virginia.edu/~thr8z/Bee_Diversity/Green_Halictid_Key/> [Augochlorini]
Knerer, Gerd & Patricia MacKay. 1969. Bionomic notes on the solitary Evylaeus oenotherae (Stevens)” (Hymenoptera: Halictinae), a matinal summer bee visiting cultivated Onagraceae. Canadian Journal of Zoology 47(3): 289-294. [Lasioglossum oenotherae]
Kondo, Takumasa, Michael L. Williams, and Robert Minckley. 2000. “Giant Resin Bees! Exotic Bee Species Makes Its Way from East Coast to Alabama." Highlights of Agricultural Research 47(3). [Megachile sculpturalis]
Krombein, Karl, "1970. Another note on the nesting habits of Megachile texana Cresson. Proceedings of the Entomological Society of Washington 55: 84-85.
Krombein, Karl V, Trap-nesting Wasps and Bees: Life Histories, Nests and Associates. Washington, D.C.: Smithsonian Press, 1967, p. 264-269. [Nesting behavior of leafcutter bees]
"Kudzu." National Park Service. August 6, 2014. <http://www.nps.gov/plants/alien./pubs/midatlantic/pumol.htm>
LaBerge, Wallace E. 1986. "Andrena (Holandrena) cressonii Robertson," from "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. [Andrena cressonii at 523-538].
LaBerge, Wallace 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, 99:235-37. [Andrena]
LaBerge, Wallace E. 1963. "New species and Records of Little-known Species of Melissodes from North America (Hymenoptera: Anthophoridae),” Bulletin of the University of Nebraska State Museum 9.
LaBerge, Wallace E. 1956b. A revision of the bees of the genus Melissodes in north and Central America. part I. (Hymenoptera, Apidae). The University of Kansas Science Bulletin 37(18): 911–1194. [Melissodes]
LaBerge, Wallace E. 1956a. A revision of the bees of the genus Melissodes in North and Central America. part II (hymenoptera, Apidae), The University of Kansas Science Bulletin 38(8): 533–578. [Melissodes]
LaBerge, Wallace E & D. W. Ribble. 1966. The nests and larvae of two species of Agapostemon (Hymenoptera: Halictidae). Journal of the Kansas Entomological Society 39: 467-472. [Agapostemon]
López-Uribe, M. M., Cane, J. H., Minckley, R. L., & Danforth, B. N. 2016. Crop domestication facilitated rapid geographical expansion of a specialist pollinator, the squash bee Peponapis pruinosa. Proceedings of the Royal Society B: Biological Sciences 283(833): 20160443. [Squash bee; Xenoglossa]
Lovell, J. H. & T. D. A Cockerell. 1906. Notes on the bees of Southern Maine: Anthophoridae, Halictoididae, Macropidae and Panurgidae). Ca. Paper 370.
Mangum, Wyatt & S. Bambara, "Giant Resin Bee." North Carolina State University Cooperative Extension. August 6, 2014. Web. <http://www.ces.ncsu.edu/depts/ent/notes/Other/note110.html>
Matteson, Kevin C. “A Pictorial Guide to Common Bees of the New York City Metropolitan Area.” Great Pollinator Project. Web. July 18, 2014. <http://greatpollinatorproject.org/sites/all/downloads/pdfs/Pictorial_Guide_to_Common_NYC_Bees.pdf>
Mathewson, J.A. 1968. Nest construction and life history of easter curcurbit bee, Peponapis pruinosa (Hymenoptera; Apoidea). Journal of the Kansas Entomology Society, vol. 41:255-261. [Squash bee; Xenoglossa]
Mathewson, J. & H. Daly. 1955. A brief note on the sleep of male Melissodes (Hymenoptera: Apidae). Journal of the Kansas Entomological Society 28: 120. [Melissodes]
Matteson, Kevin C. and Gail A. Langellotto. 2009. Bumble Bee Abundance in New York City Community Gardens. Cities and the Environment 2(3), Article No. 5.
Medler, J.T.. 1967. Biology of Osmia in trap nests in Wisconsin. Annals of the Entomological Society of America 60(2) 338-344. [Osmia]
Medler, J.T., 1964. A Note on Megachile (Sayapis) pugnata pugnata Say in Trap-nests in Wisconsin (Hymenoptera: Megachilidae), The Canadian Entomologist 96(6): 918-921. [Megachile]
Medler, J. T., & T. W. Koerbe. 1958. Biology of Megachile Relativa Cresson (Hymenoptera, Megachilidae) in trap-nests in Wisconsin.” Annals of the Entomological Society of America 51(4): 337-344.
“Megachile capanulae,” Canadian Journal of Arthropod Identification. Web July 23, 2015. <http://cjai.biologicalsurvey.ca/srpg_18/Species/4M_campanulae/M_campanulae_species_page.html> [Megachile]
“Megachile relativa,” E. H. Strickland Entomological Museum of the University of Alberta, Canada. 2001-2017. Web. July 5, 2017. < http://entomology.museums.ualberta.ca/searching_species_details.php?fsn=megachile+relativa&sb=1&r=1&o=1&c=2&s=5847&sn=Megachile+relativa> [Megachile]
Michener, Charles D. 1974. The Social Behavior of the Bees: A Comparative Study. Belknap Press of Harvard University Press, xii + 404 pp.
Michener Charles D. 2007. The Bees of the World. 2nd Ed. Johns Hopkins University Press, Baltimore, 953 pp.
Miliczky, E. R .& E. A. Osgood. 1995. Bionomics of Andrena (Melandrena) vicina Smith in Maine and Washington, with new parasite records for A. (M.) regularis Malloch and a review of Melandrena Biology. Journal of the Kansas Entomological Society 68(1): 51-66.
Miller, Shane R., Robert Gaebel, Randall J. Mitchell & Mark Arduser. 2002. Occurrence of two species of Old World bees, Anthidium Manicatum and A. Obligatum (Apoidea Megachildae), in Northern Ohio and Southern Michigan.” The Great Lakes Entomologist (2002). [Anthidium]
Mitchell, Theodore B., “New Species of Sphecodes from the Eastern United States, Journal of the Elisha Mitchell Scientific Society, Vol. 72, No. 2 (November 1956), pp. 206-222. [Sphecodes]
Mitchell, Theodore B. 1962. Bees of the Eastern United States. Volume 2. North Carolina Agricultural Experimental Station Technical Bulletin No. 152.
Mitchell, Theodore B. 1960. Bees of the Eastern United States. Volume 1. North Carolina Agricultural Experiment Station Technical Bulletin No. 141.
Moisset, Beatriz, & Vicki Wojcik, “The Pure Golden-Green Sweat Bee.” United States Department of Agriculture Forest Service. Web. August 23, 2015. < http://www.fs.fed.us/wildflowers/pollinators/pollinator-of-the-month/augochlora_pura.shtml> [Augochlora]
Moure, Jesus S. & Paul D. Hurd. 1987. An Annotated Catalog of the Halictid Bees of the Western Hemisphere (Hymenoptera: Halictidae). Smithsonian Institution Press, Washington D.C. [Agapostemon]
Mueller, Ulrich G., George C. Eickwort & Charles F. Aquadro. 1994. “Evolution DNA fingerprinting analysis of parent-offspring conflict in a bee [Augochlorella striata]." Proceedings of the National Academy of Sciences of the United States of America 91: 5143-5147.
"Native Bee Pollination of Hybrid Sunflowers." Xerxes Society. Web. August 13, 2014. <http://www.xerces.org/wp-content/uploads/2008/10/factsheet_sunflower_pollination.pdf>
"Neighborly Andrena." Nature Search, Fontanelle Forest of Omaha, Nebraska. Web. May 22, 2016. <http://www.fnanaturesearch.org/index.php?option=com_naturesearch&task=view&id=1248>
Neff, John L. and Beryl B. Simpson. 1988. Vibratile pollen-harvesting by Megachile Mendica Cresson. Journal of the Kansas Entomological Society 61(2): 242-244. [Megachile]
Nye, William P. and J. LaMar Anderson. 1974. Insect pollinator frequenting strawberry blossoms and the effect of honey bees on yield and fruit quality. Journal of the American Society for Horticultural Science 99(1). [Apis]
Onuferko, Thomas M. 2018. A revision of the cleptoparasitic bee genus Epeolus Latreille for Nearctic species, north of Mexico (Hymenoptera, Apidae). Zookeys 755: 1-185.
Onuferko, Thomas, M., S. Cardinal, & Laurence Packer. 2026. Phylogenomics and biogeography of the cleptoparasitic bee genus Triepeolus Robertson (Hymenoptera: Apidae), with a revised subgeneric classification of Triepeolus and its sister genus, Epeolus Latreille. Systematic Entomology 51(1). [Triepeolus; Epeolus]
Onuferko, Thomas M., & Molly G. Rightmyer. 2024. A revision of the simplex species group of the cleptoparasitic bee genus Triepeolus Robertson, 1901 (Hymenoptera: Apidae). European Journal of Taxonomy 950(1): 1–106. [Triepeolus]
Ordway Ellen. 1966. Systematics of the genus Augochlorella (Hymenoptera, Halictidae) North of Mexico. The University of Kansas Science Bulletin 56(16): 509-624. [Augochlorella]
Osgood, Eben A. 1989. Biology of Andrena crataegi Robertson (Hymenoptera: Andrenidae), a communally nesting bee. Journal of the New York Entomological Society 97(1): 56-64. [Andrena]
Parker, Frank D. & George E. Bohart. 1979. Dolichostelis, a new genus of parasitic bees. Journal of the Kansas Entomological Society 52(1): 138-153. [Dolichostelis]
Parker, F.D., V.J. Tepedino, & G.E. Bohart. 1981. Notes on the biology of a common sunflower bee, Melissodes (Eumelissodes) agilis Cresson. Journal of the New York Entomological Society 89(1): 43–52. [Melissodes]
Pascarella, John B., "The Bees of Florida" ("Andrenidae" ). Department of Entomology & Nematology, University of Florida. Web. May 24, 2015. <http://entnemdept.ifas.ufl.edu/HallG/Melitto/floridabees/andreninae.htm> [Andrena]
Pascarella, John B., The Bees of Florida. Department of Entomology and Nematology, University of Florida. Web. July 23, 2015. <http://entnemdept.ifas.ufl.edu/hallg/melitto/floridabees/stelis.htm>
Pascarella, John. B. 2007. Foraging patterns of the southeastern blueberry bee Habropoda laboriosa (Apidae, Hymenoptera): Implications for understanding oligolecty. Journal of Apicultural Research 46(1):19-27.
Pierson, Kim, Vincent J. Tepedino, Sedonia Sipes & Kim Kuta, “Pollination Ecology of the Rare Orchid, Spiranthes diluvialis: Implications for Conservation.” United States Department of Agriculture. August 30, 2015. Web. <http://www.fs.fed.us/rm/pubs/rmrs_p023/rmrs_p023_153_164.pdf> [re: information on Anthophora terminalis digger bees]
“Pollination: Other Pollinating Bees.” The University of Georgia College of Agricultural and Environmental Sciences. Web. Jan 4, 2016. <http://www.ent.uga.edu/bees/pollination/other-pollinating-bees.html>
"Pollinator Biology and Habitat," NRCS Michigan Technical Note No. 201, April, 2013 (rev. 2014). National Resources Conservation Service. Web. June 19, 2014. <http://www.nrcs.usda.gov/Internet/FSE_PLANTMATERIALS/publications/mipmctn11774.pdf>
Pope, N. S., Singh, A., Childers, A. K., Kapheim, K. M., Evans, J. D., & López-Uribe, M. M. 2023. The expansion of agriculture has shaped the recent evolutionary history of a specialized squash pollinator. Proceedings of the National Academy of Sciences. 120(15). [Squash bee; Xenoglossa]
Portman, Zachary, Mike Arduser, I. G. Lane, & D. P. Cariveau. 2022. A review of the Augochloropsis (Hymenoptera, Halictidae) and keys to the shiny green Halictinae of the midwestern United States. ZooKeys 1130: 103–152. [ Agapostemon; Augochlorini; Augochlora; Augochlorella; Augochloropsis;]
Portman, Zachary, Mark Arduser, Mike E. Powley, & Dustin P. Cariveau. 2024. Taxonomy of Agapostemon angelicus and the A. texanus species complex (Hymenoptera, Halictidae) in the United States. European Journal of Taxonomy 958: 203–241. [Agapostemon]
Preston, Elizabeth, "Urban Bees Build Their Nests with Plastic." Discover Magazine. Feb. 8, 2014. Web. July 21, 2015. <http://blogs.discovermagazine.com/inkfish/2014/02/18/urban-bees-build-their-nests-with-plastic/#.Va7JbflVhBc>
Ramírez-Freire, L., G.J. Alanís-Flores, R. Ayala-Barajas, H. Quiroz -Martínez & C.G. Velazco-Macías. 2012. Las abejas del género Agapostemon (Hymenoptera: Halictidae) del estado de Nuevo León, México. Revista Mexicana de Biodiversidad 83 (1): 63–72. [Agapostemon]
Rank, G.H. & D. W. Goerzen. 1982. Native leafcutter bee species and associated parasites in commercial hives in Saskatchewan, Canada," Apidologie 12(3): 211-220.
Rau, Phil. 1929. The biology and behavior of mining bees, Anthophora abrupta and Entechnia taurea. Psyche 36: 155-181. [Anthophora; Melitoma]
Rehan, Sandra M. & Miriam H. Richards. 2010. Nesting Biology and Subsociality in Ceratina calcarata.. The Candian Entomologist 142: 65-74. [Ceratina]
Rightmyer, Molly G. 2008. A review of the cleptoparasitic bee genus Triepeolus (Hymenoptera: Apidae). Part I. Zootaxa 1710(1): 1–170. [Triepeolus]
Roberts, Jean P., “Quantifying a Rare Event: Pollen Theft by Honey Bees from Bumble Bees and Other Bees (Apoidea: Apidae, Megachilidae) Foraging at Flowers,” Journal of the Kansas Entomological Society, Vol. 78, No. 2 (April 2005), pp. 172-175.
Roberts, Radclyffe B. 1973. Bees of Northwestern America: Agapostemon (Hymenoptera: Halictidae). Oregon State University Agricultural Experiment Station Technical Bulletin 126: 1–23. [Agapostemon]
Roberts, Radclyffe B. 1972. Revision of the bee genus Agapostemon (Hymenoptera: Halictidae). University of Kansas Science Bulletin 49 (1): 437–590. [Agapostemon]
Robertson, Charles. 1926. Phenology of inquiline and nest-making bees, Psyche: A Journal of Entomology 33(4-5): 116-120. [Epeolus bifasciatus]
Robertson, Charles. 1897. North American bees - Descriptions and synonyms. Transactions of the Academy of Science of St. Louis 7: 315–356.
Rohan E. B., "Honey Bee Stealing Pollen from a Sweat Bee." Online video clip. You Tube. June 24, 2016. Web. Accessed October 28, 2016. <https://www.youtube.com/watch?v=ke2vAAri3-E> [showing a honey bee robbing a ligated sweat bee pollinating a sunflower]
Rosenthal, Susan, “Buzz Pollination.” Bay Nature. June 11, 2008. Web. Jan 4, 2016. < https://baynature.org/articles/buzz-pollination/>
Rowson, Rhian and Mark Pavett, “A Visual Guide for the Identification of British Coelioxys.” Amateur
Entomologists' Society. Web. September 9, 2017. <https://www.amentsoc.org/insects/fact-files/orders/coelioxys-key-low-res.pdf>
Rozen, Jr., Jerome G., and Marjorie S. Favreau.. 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. [Epeolus]
Sampson, Blair J., Robert G. Danka & Stephen J. Stringer. 2004. Nectar robbery by bees Xylocopa virginica and Apis mellifera Contributes to the Pollination of Rabbiteye Blueberry.” Journal of Economic Entomology 97(3): 735- 740. [Xylocopa; Apis]
Sandhouse, Grace A. 1937. The bees of the genera Augochlora, Augochloropsis, and Augochlorella (Hymenoptera; Apoidea) occurring in the United States. Journal of the Washington Academy of Sciences 27: 65–79. [Augochlorini; Augochlora; Augochlorella; Augochloropsis]
Sandhouse Grace A. 1936. The bees of the genus Agapostemon (Hymenoptera: Apoidea) occurring in the United States. Journal of the Washington Academy of Sciences 26 (2): 70–83.
Sardiñas, H.S., K. Tom, L.C. Ponisio, A. Rominger, & C. Kremen. 2016. Sunflower (Helianthus annuus) pollination in California's Central Valley is limited by native bee nest site location. Ecological Applications 26(2): 438–447. [Melissodes]
Schrader, Martha Northam and Wallace E. LaBerge, “The Nest Biology of the bees Andrena (Melandrena) regularis Malloch and Andrena (Melandrena) carlini Cockerell (Hymenoptera: Andrenidae)." Urbana :State of Illinois, Dept. of Registration and Education, Natural History Survey Division, 1978. [Andrena]
Sharp, Paula & John B. Pascarella. 2026. Nesting biology of Melissodes apicatus and its brood parasite Triepeolus rugosus (Hymenoptera: Apidae), with the first host record and description of the male parasite. Journal of Melittology. Forthcoming. . [Melissodes, Triepeolus]
Sheffield, Cory S., Claudia Ratti, Laurence Packer & Terry Griswold. 2011. Leafcutter and mason bees of the genus Megachile Latreille (Hymenoptera: Megachilidae) in Canada and Alaska. Canadian Journal of Arthropod Identification 18.
Sheffield Cory S., Lars Vilhelmsen & Frédérique Bakker. 2021. Taxonomy of the New World bee genus Agapostemon Guérin-Méneville – new names and synonymies (Hymenoptera: Halictidae). European Journal of Taxonomy 751: 1–23. [Agapostemon]
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, Vol. 46 (1967), pp. 753-936.
Snelling, Roy R. 1970. "Studies on North American bees of the genus Hylaeus. The subgenera Hylaeus S. Str. and Paraprosopis (Hymenoptera: Colletidae). Contributions in Science 180. [Hylaeus]
“Solitary Bees: Mason Bees. Growers of bee-pollinated crops, particularly apples, may be interested in the possible use of solitary and wild bees as pollinators.” Penn State Extension, Penn State College of Agricultural Sciences. March 30, 2016. Web. http://extension.psu.edu/plants/tree-fruit/insects-mites/pollinators/solitary-bees-mason-bees
“Specialist Bee Plants.” The Great Pollinator Project. Web. Jan. 4, 2016. <http://greatpollinatorproject.org/pollinators/bees/specialist-bee-plants> [About spring beauty]
“Sphecodes Bees.” The Great Sunflower Project. Web. Sept. 6, 2016. Web. < https://www.greatsunflower.org/Sphecodes>
Stanley, Tim, "Native Beeology." Web. September 25, 2017. <https://nativebeeology.com/about-author/> [Recommended informative website about native bees in New York.]
“Subgenus Litomegachile Mitchell, 3 Species,” “Key to Females of Litomegachile,” and “Key to Males of Litomegachile.” Florida Bees. Entomology and Nematology Department, University of Florida. Web. Jan. 5, 2015. <http://entnemdept.ifas.ufl.edu/hallg/melitto/floridabees/litomegachile.htm> [Megachile; Litomegachile;
Tepedino, V. J., & Frohlich D. R. 1982. Mortality factors, pollen utilization, and sex ratio in Megachile pugnata Say (Hymenoptera: Megachilidae), a candidate for commercial sunflower pollination." Journal of the New York Entomological Society 90(4): 269-74. [Megachile]
"Triepeolus remigatus." Discover Life. Web. Jan 3, 2016. <http://www.discoverlife.org/20/q?search=Triepeolus+remigatus> [noting host species of cuckoo bee].
“Unraveling the Pollinating Secrets of a Bee’s Buzz,” The New York Times. July 13, 2013. Web. Jan 4, 2016. <http://www.nytimes.com/2013/07/11/science/unraveling-the-pollinating-secrets-of-a-bees-buzz.html?_r=0>
Urban, Danuncia, & Daniele Regina Parizotto. 2012. A revised key to the Neotropical cleptoparasitic anthidiine genera (Hymenoptera, Megachilinae) with notes and description of the male of Rhynostelis Moure & Urban. ZooKeys 249: 27–35. {Anthidini]
“Wasp Pollination.” The U.S. Department of Agriculture Website. Web. July 20,2014
<http://www.fs.fed.us/wildflowers/pollinators/animals/wasps.shtml>
Whelden, Roy M. 1954. Notes on the bumble-bee (Bombus fervidus Fabricus) and its chromosomes. Journal of the New York Entomological Society 62(2): 91-97. [Bombus]
"Wild Pollinators of Easter Apple Orchards and How to Conserve Them." Cornell University, College of Argriculture and Life Science, Department of Entomology. Web. May 27, 2015. <http://www.fruit.cornell.edu/tree_fruit/resources/wild_pollinators.pdf>
Williams, Barbara, "Bees." Winnebago County Forest Preserve District Website. Web. August 11, 2014.
<http://wcfpd.org/conservation/plants-animals/insects/pollinators/bees/>
Wood, Marcia, "Alfafa Bees Prove Their Carrot Competence." Agricultural Research Service - United States Department of Agriculture. Web. June 20, 2015. <http://www.ars.usda.gov/is/pr/1997/970820.htm>
Zarrillo, Tracy, “Connecticut Bumble Bee Guide.” Connecticut Entomological Society. July 2, 2015. Web. <http://ctentsoc.org/wp-content/uploads/2014/04/CT-Bombus-Guide.pdf>