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Museum of Comparative Zoology, Harvard University   cc-by-nc-sa-3.0

Osmia atriventris is a species of Hymenoptera in the family Megachilidae. They visit flowers of , Penstemon lanceolatus, field chickweed, and Ackerman's milkvetch.

EOL has data for 14 attributes, including:

Known occurrences, collected specimens and observations of Osmia atriventris Cresson 1864. View this species on GBIF