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USGS Bee Inventory and Monitoring Lab   cc-publicdomain

Osmia (Mason Bees) is a genus of Hymenoptera in the family Megachilidae. They visit flowers of dwarf checkerbloom, checkerbloom, Christ's Indian paintbrush, and telegraphweed.

EOL has data for 16 attributes, including:

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