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Osmia dakotensis Michener, 1937


Scientific Name: Osmia dakotensis Michener, 1937

Common Name: Dakota Mason Bee


Osmia dakotensis Michener, 1937: 407 [♀].

     Holotype ♀. USA, North Dakota, Bowman, 23 June 1918, by O.A. Stevens, on Astragalus bisulcatus and Homalobus tenellus [O.A. Stevens Collection].

Osmia (?Acanthosmioides) dacotensis Sandhouse, 1939: 62. Lapsus of Osmia dakotensis Michener, 1937.

Osmia (Nothosmia) cockerelli Sandhouse, 1939: 104 [♂]. Synonymy by Rightmyer et al. (2013: 561, in Abstract only).

     Holotype ♂. USA, New Mexico, Las Vegas, 11 May [no year provided], by T.D.A. Cockerell, on Aragallus [USNM no. 27305].


Taxonomic notes: Michener (1937: 407) felt his species was very close to Osmia melanotricha Lovell and Cockerell, and maybe that it best represented a subspecies, though it has subsequently been regarded as a valid taxon (Sandhouse 1939: 62; Michener 1951: 1165; Hurd 1979: 2037; Rightmyer et al. 2013: 561).

It is likely that Sandhouse’s (1939: 62) emendation of Osmia dakotensis Michener, 1937 (Michener 1951: 1165; Hurd 1979: 2037) is actually a lapsus as she also recorded Michener’s original spelling incorrectly.

DNA Barcode Index Number (BIN): BOLD:AAC8498

Distribution in Canada: Onuferko et al. 2023 [AB, SK].


Hurd PD (1979) Superfamily Apoidea. In: Krombein KV, Hurd Jr PD, Smith DR, Burks BD (Eds) Catalog of Hymenoptera in America North of Mexico. Smithsonian Institution Press, Washington, 2735 pp.

Michener CD (1951) Family Megachilidae. In: Muesebeck CF, Krombein KV, Townes HK (Eds) Hymenoptera of America north of Mexico Synoptic Catalog. 2. United States Department of Agriculture Agricultural Monograph, Washington. Pp. 1136-1186.

Sandhouse GA (1939) The North American bees of the genus Osmia (Hymenoptera: Apoidea). Memoirs of the Entomological Society of Washington 1: 1-167.

Onuferko TM, Buck M, Gibbs J, Sokoloff PC (2023) Asymmetric responses by bees and aculeate wasps to dune stabilisation across the southern Canadian prairies Insect Diversity and Conservation 16:

Rightmyer MG, Griswold T, Brady SG (2013) Phylogeny and systematics of the bee genus Osmia (Hymenoptera: Megachilidae) with emphasis on North American Melanosmia: subgenera, synonymies and nesting biology revisited. Systematic Entomology 38: 561-576.

Michener CD (1937) Records and descriptions of north American bees. Annals and Magazine of Natural History, Series 10 19(112): 393-410.

Sociality: Solitary
Wintering Stage: Adult

Crop Preference: Not Available
Non Crop Preference: Not Available

Distribution: Alberta, Saskatchewan
Ecozone: Prairie

Distribution Map