A male Ceratina Bee is seen peering into a nest that’s being excavated by a female. The nest is in a stem of a Goatsbeard plant (Aruncus dioicus) 10mm in diameter.
On the sides of the stem, “jaw dust” flakes that the female is excavating is the pith of the plant. that she is removing. The final nest will be a tunnel running four to six inches long.
A female Ceratina Bee is seen foraging on the flower head of Ceanothus velutinus, a native shrub that is a great pollen and nectar source.
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