Osmia (Melanosmia) nigriventris (Zetterstedt, 1838)

Counties: Lake, Saint Louis.

Comments: This rare Holarctic species is known in Minnesota from two specimens collected in 1936 and 2021.

Material examined: Lake Co.: 1 ♀, 20 Jun 1936, R. H. Daggy leg., det. T. Mitchell and conf. J. Gardner; Saint Louis Co.: Superior NF (47.6883, -92.8195): 1 ♀ (MNDNR), 23 Jun 2021, J. Greenlee leg., pantraps, det. Z. Portman.