with a [edit: Bembix] and a Pyrobombus. See also See also: https://www.inaturalist.org/observations/170392682
Pollinating dudleya
much smaller, about half the size of B. von....
Dead
Same bee, alive: https://www.inaturalist.org/observations/134319756
Observation of same bee, dead: https://www.inaturalist.org/observations/134425881
Found on ground on a windy morning, thought it was dead but realized it wasn't, transferred to sheltered porch.
Couldn't fly or walk well, seemed to regain some energy but was uncoordinated and 'jerky', quite lethargic, died some hours later that afternoon.
The fields nearby were sprayed yesterday, which may be relevant.
This one seems to have pale hairs on the underside of the abdomen. Could it be the Fog-belt Bumblebee? Nectaring on Zinnia elegans.
The lower fuzzy bees. When both fuzzy ones got on the same flower, the other chased this one away. Along trail in stabilized sand dunes at the coast. Smaller than the yellow-faced bumblebees I see in Corvallis.
Yellow hairs on sternites. Queen.