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SNSB, Zoologische Staatssammlung Muenchen. Stefan Schmidt. Year: 2010.   cc-by-nc-sa-3.0

Osmia caerulescens (Mason Bee) is a species of Hymenoptera in the family Megachilidae. They visit flowers of Ballota acetabulosa and Sage.

EOL has data for 9 attributes, including:

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