Mason Bee Drawing by Lucia Harrison
Lushootseed name for Bee.

Scientific Name:  Osmia lignaria

Click on images below to enlarge them.

Photo by Derrick Ditchburn

Mason Bees mate in the spring and the females collect the nectar pollen from flowering trees like the Vine Maple and other flowering plants.  They live alone and make nests in above ground cavities where they deposit their eggs and the pollen and nectar they have collected.  They plug the holes and then the eggs hatch, feed and hibernate until spring.

For more information about Mason Bees read the article by the Arboretum Foundation’s Bulletin titled  Getting to know Northwest Bees


Photo by Ramesh Sagili, Oregon State University

Photo by Robert Engelhardt