On Eriogonum fasciculatum. Cuckoo bee? Same location as observed this past Saturday, 5/4/24.
Observed two different bees circling together low to the ground of a dry creek bed. This one had long mandibles and consistently landed on Salvia mellifera leaves. Other bee (Tribe Osmiini) obs: https://www.inaturalist.org/observations/214279955
On Clearwater Cryptantha. This bee strafed these flowers twice, without staying long enough for a decent photo.