mc9662's picture

Red Mason Bee

Observed: 9th April 2011 By: mc9662
S159 Neighbourhood Nature - course complete
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Last year, a red mason bee was visiting this hole (see )
And today, the hole opened. Then I noticed a face sticking out and another bee coming back and forth with pollen (? judging by the yellow spots on the hiders face)
Now there are 2 mason bees which have flown off together. Is this a parent feeding offspring? Any ideas??

Species interactions

No interactions present.

Species with which Red Mason Bee (Osmia (Osmia) rufa) interacts


eucera's picture

Mason bees

What you probably have is a series of individuals which are the offspring of last years bees. The nest is linear, and so the bees nearest the entrance need to emerge first. These are always males. A few days after the males emerge, the females start appearing.

Depending on the length of the nest burrow, you might find up to about 10 individual brood cells were produced last year

Chairman BWARS