a_hershey's Identifications

I have been watching for very small bees foraging low in meadow conditions. This is the first bee like this I have seen: I thought Andrena because of the form and colour of the abdomen and iNat is suggesting this genus within a different subfamily of Andrenidae. Seems like others in the area have observed similar bees. Bees of the World gives size range as 5 to 9 mm and I'd say this bee was on the small end of that scale. No wing detail for an id unfortunately. I think I can see some yellow markings on the legs but no yellow on the clypeus. From antennae length, perhaps a female so markings not necessarily present?
Flowers are ~3mm across.