Barnmead's picture

Masonry bee?

Observed: 18th April 2011 By: Barnmead
S159 Neighbourhood Nature - course complete
Barnmead’s reputation in InvertebratesBarnmead’s reputation in InvertebratesBarnmead’s reputation in Invertebrates
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The warm, south facing wall of our house has been buzzing with numerous insects crawling in and out of cracks in the mortar. Some get into the kitchen. Are these masonry bees? How much damage might they be doing to an 18th century building?

Species interactions

No interactions present.


Jonathan's picture

No idea, really, but if the

No idea, really, but if the building has stood for 300 years, its probably not going to fall down because of a few masonry bees.

University of Edinburgh and Biodiversity Observatory (OU)

eucera's picture

Mason Bees

These are not mason-bees, but some species of Andrena, possibly A. nigroaenea. They are safe with children and pets, and pose no threat to the structure of buildings

Chairman BWARS