Mason bee are bees in the genus Osmia, of the family Megachilidae. Mason bees are named for their habit of using mud or other "masonry" products in constructing their nests, which are made in naturally occurring gaps such as cracks in stones or other small dark cavities. When available, some species preferentially use hollow stems or holes in wood made by wood-boring insects.
PORTRAIT AND PHOTO VIA WIKIPEDIA, CC BY-SA
Their world
Pollinators support ~75% of leading food crops.
Least ConcernVulnerableExtinct
Red List status of bees & pollinators as a group
One thing you can do for them today
Plant one native flower
Native plants feed local pollinators and birds far better than ornamentals.
Adopt a daily habit the mason bee will feel. Open the app