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Bee Basics - An Introduction to our Native Bees
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Seeds of Diversity (citizen-science pollinator monitoring program, plus general information about pollinators, flowers, pollination)
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The Great Sunflower Project (citizen-science pollinator monitoring program, plus general information about pollinators, flowers, pollination)
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Identification Guide for the Bumble Bees of Eastern North America (Williams, Thorp, Richardson, & Colla)
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Bumble Bee Watch (upload your bumble bee photos and have them identified)
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e-butterfly (upload your butterfly photos and have them identified)
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Monarch Watch - information about observing and rearing monarchs, larval host plants, other butterfly species, and more
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A Guide to Toronto's Pollinators (David Suzuki Foundation)
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Butterflies and Moths of North America (includes information on species, identification, species lists, and more)
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Bee Monitoring Tools - pollinator monitoring and identification guides (Xerces Society)
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Bug Guide (insect identification by photos)
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Discover Life (information about species around the world)
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Pollinator of the Month (U.S. Fish & Wildlife Service)
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Celebrating Pollinators (U.S. Fish & Wildlife Service)
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The Monarch Butterfly in North America (USDA/US Forest Service)
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Butterflies of Canada (Government of Canada)
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Ontario Butterfly Atlas
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Techniques for Rearing Butterflies and Moths (Toronto Entomologists' Association)
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Native Buzz - learn about native solitary bees and wasps, keep track of your own native buzz nest site and see the results of other participant’s nest sites
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Canadian Journal of Arthropod Identification (with keys to identify bees and flies of Eastern Canada)
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Bumble-Boosters Program (University of Nebraska-Lincoln)
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Spring Bees of Wisconsin (ID bees by photo key or text key)
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Insect Identification
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Eastern Tennessee Wildflower (lots of great photos of beetles, true bugs)
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Caterpillars of Eastern North American Forests (USGS)
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Identification Atlas of the Vespidae (Hymenoptera, Aculeata) of the northeastern Nearctic region (wasp ID)
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Syrphidae of Ontario (not yet complete)
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Key to the Genera of Nearctic Syrphidae
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Syrphid Photo Galleries, Identifications - Site 1
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Syrphid Photo Galleries, Identifications - Site 2
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A set of 5 identification slide shows on the genera of bees of Eastern North America are available for viewing on-line, while the compressed slide shows are also available for downloading
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The U.S. National Entomological Collection (National Museum of Natural History)
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Krombein, et al. (Eds). 1979. Catalog of Hymenoptera in America North of Mexico. Smithsonian Institution, Washington, D.C. Volumes 1-4. Available for free download