Non-honey bees

It’s a third year with the ivy bee (Colletes hederae) present in my country, and I’m still excited about it. I will be looking for them soon. Did you know that the ivy bee, which loves ivy so much that its flight period is fine-tuned to the flowering of this plant, is actually not a pollen specialist? In the absence of ivy flowers, it can visit heather or Asteraceae, for example. When foraging on these plants, I imagine it can quite easily be confused with other Colletes species, especially the closely related Heather Colletes (Colletes succinctus). The latter is also polylectic, with a strong preference for Ericaceae.