Centre for Biodiversity Genomics. CBG Photography Group. Year: 2010.   cc-by-nc-sa-3.0

Osmia tristella is a species of Hymenoptera in the family Megachilidae. They visit flowers of Orange Bush-Monkey-Flower, spearleaf stonecrop, Alberta beardtongue, and white clover.

EOL has data for 8 attributes, including:

Known occurrences, collected specimens and observations of Osmia tristella Cockerell 1897. View this species on GBIF