USGS Bee Inventory and Monitoring Lab   cc-publicdomain

Osmia (Mason Bees) is a genus of bees & apoid Wasps in the family Megachilidae. They visit flowers of woundwort, Penstemon griffinii, buckwheat, and mariposa lily.

EOL has data for 17 attributes, including:

Known occurrences, collected specimens and observations of Mason bees. View this species on GBIF