Osmia caerulescens -... en.wikipedia.org

Osmia cornuta - Wikipedia en.wikipedia.org

Osmia bicornis - Wikipedia en.wikipedia.org

Osmia bicolor - Wikipedia en.wikipedia.org

Osmia uncinata - Wikipedia en.wikipedia.org

Osmia - BEE POLLINATORS OF... odabeeguide.weebly.com

Osmia lignaria mason bee -... entomologytoday.org

Mason Bees (Genus Osmia) |... val.vtecostudies.org

Metallic blue Osmia Bee -... bugguide.net

Osmia tricornis | Exotic... idtools.org

Mason bee-haviors:... bugoftheweek.com

European Orchard Bee (Osmia... www.inaturalist.org

Taxonomy Megachilidae -... observation.org

OSMIA MASON BEES - NATIVE... www.wildbeestexas.com

European Orchard Bee (Osmia... www.inaturalist.org

Osmia sp. - Osmia -... bugguide.net

Osmia cornifrons -... en.wikipedia.org

File:Osmia bicornis... commons.wikimedia.org

OSMIA CALIFORNICA... mountainwestmasonbees.com

Osmia spinulosa | BWARS bwars.com