Andrena erigeniae (the pollen-specialist)

The visitor that you are most likely to encounter is Andrena erigeniae. This bee is a pollen-specialist, meaning it collects its pollen from only one or a few plant species – in this case, only Claytonia virginica and Claytonia caroliniana. This bee is small and hairy. Females are often seen with lots of pink pollen on their legs.

Female Andrena erigeniae on Claytonia virginica
Female Andrena erigeniae on Claytonia virginica



Males of the same species are smaller, slimmer, and less hairy. They often have a white mustache and longer antennae than the females.

Male Andrena erigeniae on Claytonia virginica

Male Andrena erigeniae on Claytonia virginica

Male Andrena erigeniae on Claytonia virginica




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