Family: Megachilidae
Subfamily: Megachilinae
Tribe: Osmiini
Genus: Osmia Panzer, 1806
Subgenus: Euthosmia Sinha, 1958
Common name: none
Osmia (Euthosmia) are slender, blue-green bees with white hairs (Michener 2007). They range in body length from 5–7 mm.
(modified from Michener 2007, unless otherwise stated)
Osmia (Euthosmia) may be confused with O. (Melanosmia) due to a lack of enlarged S2 and transverse S2, S3, and S4. However, they can be differentiated by the above diagnostic characteristics (Michener 2007).
Analysis of pollen found in O. (Euthosmia) glauca nests shows that they collect pollen from Collinsia spp., and are suspected to be specialists on this genus (Rust and Clement 1972).
Osmia (Euthosmia) construct nest cells out of mud in hollow stems and abandoned Sceliphron nests. Nest cells are made in clusters or in linear arrangements depending on the cavity used (Rust and Clement 1972).
Osmia (Euthosmia) contains one species, O. glauca (Michener 2007).
Osmia (Euthosmia) can be found in the U.S. west of the Rocky Mountains, primarily in California (Michener 2007; GBIF 2019).
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