Osmia leaiana using Nurturing Nature solitary bee observation nest box 2016

August 15, 2016

in A selection of my garden wildlife videos, Gardening For Wildlife, Other solitary garden bees, Solitary Bee Observation Box

Probably Osmia leaiana or a ‘pesto bee!’

A medium sized summer bee which has a bright orange pollen collecting brush (scopa) on her underside abdomen. It is also known as the Orange-vented Mason bee. As she does not use pieces of leaf (Leafcutter bee) or mud (Red mason bee) to make her brood cells, she uses masticated plant material which gave rise to my school pupils in Liverpool calling her the ‘pesto bee!’ Great descriptive name!

A pesto bee!

A pesto bee!

This is the second time (2013) this bee species has successfully made cells in my nest boxes. I have seen the rudimentary beginnings of several pesto style nest linings and rear wall, but for some reason they were never completed, along with several unsuccessful Blue mason bee nest cells. So this year I am very happy to welcome at least one female back!

“All my articles and videos, available free, are funded by my  teaching and sales of award winning bumblebee nest boxessolitary bee boxes,  and wormeries. Please help by spreading the word and forwarding this link to your friends and colleagues. http://nurturing-nature.co.uk  Thank you” George Pilkington

For info and link to buy an excellent book Field Guide to the Bees of Great Britain and Ireland by Steven Falk

An extremely useful resource supports this book by a special web site feature within Steve Falk’s Flickr web site which furnishes extra photos and other useful resources to assist with identification.

For more information about solitary bees visit BWARS

Interested in Citizen Science and pollinators? The Buzz Club 


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