Leaf cutter bees

Bit of a forum hog today sry.
The leaf cutter bee that took up residence in a drill hole in the pergola must have finished her work as the top is now sealed with a lovely pink coloured petal or leaf. Nice work.
Meanwhile, I noticed that another bee has been going in and out of a large bamboo cane that's supporting my tomatoes. Could be the same one. I assume they have more than one egg laying session. Or is that wrong?
The leaf cutter bee that took up residence in a drill hole in the pergola must have finished her work as the top is now sealed with a lovely pink coloured petal or leaf. Nice work.

Meanwhile, I noticed that another bee has been going in and out of a large bamboo cane that's supporting my tomatoes. Could be the same one. I assume they have more than one egg laying session. Or is that wrong?
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I had thought that they laid a series of eggs separated by leaves that they cut but I must be confusing them with Mason bees or something else.
Most humbling.