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Margined Mason Bee

Bee / Megachilidae / Osmia / Osmia marginipennis

Show habitat plants
5 - 14 mm

Size

Spring, Summer

Seasonality

SNR

Conservation status

Specialist

Pollinator preference

Scopae on the underside of abdomen

Pollen carrying method

Cavity nester

Nesting

Solitary

Sociality

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Plants near:

0 confirmed and 63 likely

  • Likely

  • Confirmed

California Dandelion

Agoseris grandiflora

Annual Agoseris

Agoseris heterophylla

Steppe Agoseris

Agoseris parviflora

Spearleaf Agoseris

Agoseris retrorsa

See all

Gooseberries

Ribes

Currants

Ribes

Alternative names

  • Common Names:

    Margined Mason Bee

  • Spanish Common Names:

  • Scientific Names:

    Osmia marginipennis

Additional Resources

Sources

Fowler, Jarrod. "Pollen Specialist Bees of the Western U.S." 2020. Accessed 19 Mar. 2025. https://jarrodfowler.com/pollen_specialist.html.

"Beginner Bee Field Guide." Colorado State University Extension, 28 Feb. 2022. Accessed 19 Mar. 2025. extension.colostate.edu/wp-content/uploads/2022/03/BeginnerBeeFieldGuide_LowRezWeb_28Feb2022.pdf. PDF.

NatureServe. 2025. NatureServe Network Biodiversity Location Data accessed through NatureServe Explorer [web application]. NatureServe, Arlington, Virginia. Available https://explorer.natureserve.org/. (Accessed: April 03, 2025).