Osmia sanrafaelae is a megachilid bee first identified in Utah's San Rafael Desert.

[1][2] The species' range is limited to the American intermountain West.

[1] O. sanrafaelae is a solitary nester that inhabits a wide range of ecosystems: pinyon-juniper scrubland, washes, sand dunes, and desert flatlands.

[1] Osmia sanrafaelae measure 6–11 mm (0.24–0.43 in) in length.

This Megachilidae-related article is a stub.