Osmia (Mason Bees)
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Observations
Species
No cat text for Osmia
Osmia sp.
(Mason Bees)
(Mason Bees)
Caught after entering hole in spruce stump. 9 mm.
Osmia sp.
Subgenus Osmia
(Mason Bees)
Subgenus Osmia
(Mason Bees)
25 Mar 2025
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First bee observation in the yard this spring. Male, checking out the holes in the stump.
Osmia sp.
(Mason Bees)
(Mason Bees)
21 Jun 2024
On a lupine flower
Associated Species: Centruroides sculpturatus
Osmia coloradensis
(Mason Bees)
(Mason Bees)
19 Jun 2024
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On Phacelia heterophylla flowers
Associated Species: Phacelia heterophylla (Virgate Scorpionweed)
Osmia sp.
Subgenus Melanosmia
(Mason Bees)
Subgenus Melanosmia
(Mason Bees)
18 Jun 2024
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On Phacelia heterophyla flowers.
Osmia lignaria
(Blue Orchard Bee)
(Blue Orchard Bee)
27 Mar 2022
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It looks like he has a load of mites around his waist.
Osmia sp.
(Mason Bees)
(Mason Bees)
7 May 2019
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10 mm\r\nCaught leaving bee hotel, cooled in the fridge, photographed and released.\r\n\r\nI\'m not sure what she\'s holding on to.
Osmia lignaria
(Blue Orchard Bee)
(Blue Orchard Bee)
1 May 2019
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First bee in bee hotel. \r\nSeems to have started 6 adjacent nests, with an end plug in each. Spent the night in the middle of one of the holes with her head facing the plug.
Osmia lignaria propinqua
(Blue Orchard Bee)
(Blue Orchard Bee)
5 Apr 2019
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Exited a 7 mm diameter drilled hole in spruce stump.\r\n\r\nMale blue orchard bee emerging?\r\n\r\nHe poked his head out for a few minutes, then went back in for a few more. Then he came out, walked around a bit, and flew away.
Osmia montana
(Mason Bees)
(Mason Bees)
25 May 2018
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Captured after entering hole in stump. Cooled, photographed, and released.
Osmia sp.
(Mason Bees)
(Mason Bees)
22 May 2018
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View on iNaturalist
Cutting a piece of a leaf off of a Douglas Hawthorne
Osmia sp.
(Mason Bees)
(Mason Bees)
18 Jul 2016
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View on iNaturalist
Associated Species: Trifolium repens (White Clover)
Subgenera
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