Took my own advice and watered the Calafornian lilac. It had not had a bumble on it all spring. Next day they were busy, busy, busy. Dry plants can't give nectar #bees
In this photo we can see some light yellow pollen in her baskets on her hind leg
A different view of the same bee in flight showing its buff bum
A bumble bee on the many flowered blue flower head of Californian lilac. It is black with a yellow stripe on its shoulder