Observed in residential garden.

Bee was foraging among a number of ‘Rodeo Rose’ lupine plants, a hybrid of Arroyo Lupine. This bee, if she is the same one, has visited these flowers three, maybe four days in a row.

Nine days ago I observed a larger female of the same species on a 'Julia Phelps' ceanothus. https://www.inaturalist.org/observations/40566405

Wondering if there is a nest site nearby?

Not sure this is the Urbane Digger Bee, but looks like it. Tried but could not get wing detail,. I think I see three submarginal cells? Fast mover, frequently hovered in place. This bee was foraging on flowers in an abundant field of Hubby’s Phacelia. Noted pollen baskets on hind legs, dusty grey in color. Is color a result of pollen/nectar gathered from Phacelia in particular?